Complete Denture: Impressions

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Questions and Answers

What material is commonly used for primary impressions in conventional complete denture fabrication?

Alginate

In conventional complete dentures, what is the purpose of border molding during secondary impressions?

To recreate spacing using greenstick compound

What is the importance of recording teeth contact in ICP for Cobalt-chrome Removable Partial Dentures (RPD)?

To verify articulation.

When using silicone for secondary impressions for a Cobalt-chrome RPD, is it acceptable to use both medium and wash consistencies simultaneously?

<p>No</p> Signup and view all the answers

What is the rationale behind using a runny mix of alginate for secondary impressions in Cobalt-chrome RPD fabrication?

<p>Must be casted within 30 minutes</p> Signup and view all the answers

Why is it critical to ensure that upper and lower rims are passive in occlusion when taking jaw relationship records for Cobalt-chrome RPDs?

<p>To allow opposing teeth to occlude accurately.</p> Signup and view all the answers

What is the purpose of using a facebow during the fabrication of a metal ceramic crown?

<p>To record the spatial relationship of the maxillary arch to the temporomandibular joints and transfer this relationship to an articulator.</p> Signup and view all the answers

What is a key consideration when taking secondary impressions for metal ceramic crowns, especially concerning soft tissue?

<p>Gingival retraction</p> Signup and view all the answers

What type of impression material should be used for a final impression when fabricating an acrylic partial denture?

<p>Special trays</p> Signup and view all the answers

When fabricating an acrylic partial denture, what is an important instruction to include on the lab prescription?

<p>That you are making an acrylic denture</p> Signup and view all the answers

What is the purpose of the 'try-in' stage when constructing a complete denture?

<p>To make any necessary adjustments / re-register</p> Signup and view all the answers

What is the purpose of border molding during the secondary impression stage for conventional complete dentures?

<p>To recreate spacing using greenstick compound or border molding</p> Signup and view all the answers

During jaw registration for complete dentures, what is the first step in adjusting wax rims?

<p>Adjust upper wax rim</p> Signup and view all the answers

What is the primary material used for taking primary impressions in copy denture fabrication?

<p>Silicon putty</p> Signup and view all the answers

In the context of copy dentures, what should be done if the vertical dimension is increased?

<p>You might need to add wax to the incisal edges.</p> Signup and view all the answers

What is a critical step after the try-in appointment during the fabrication of a mandibular implant-retained overdenture using ball attachments?

<p>Insert or change the healing cap/studs (ball abutments)</p> Signup and view all the answers

What material is used for secondary impressions on edentulous ridge and border moulding when fabricating a mandibular implant retained overdenture?

<p>Admix</p> Signup and view all the answers

In resin-bonded bridges, where should tooth preparation primarily be located?

<p>Within Enamel</p> Signup and view all the answers

What is the purpose of silanating metal wings for resin-bonded bridges prior to cementation?

<p>To enhance bond strength</p> Signup and view all the answers

What is the primary use of green stick compound in the context of complete denture fabrication?

<p>Modify stock trays</p> Signup and view all the answers

In the context of Cobalt-chrome RPDs, what is the significance of discussing the design with a tutor before the second clinical visit?

<p>Teeth preparation design is discussed</p> Signup and view all the answers

When teeth shade and occlusal cannot be established, what must be included to facilitate the designing of the Co/Cr framework?

<p>Rims are required to register jaws relationship</p> Signup and view all the answers

What specific detail during the primary impression stage is critical for a patient requiring a Cobalt-chrome RPD with free-end saddles?

<p>Use green stick or impression compound in the stock tray first in edentulous saddles.</p> Signup and view all the answers

What is the rationale for using a DENTATE stock tray for the jaw with the implant when taking primary impressions for a mandibular implant-retained overdenture?

<p>To take Alginate wash impression</p> Signup and view all the answers

Why is a facebow considered mandatory when preparing multiple anterior teeth for metal ceramic crowns, but optional otherwise?

<p>To accurately record maxillary arch</p> Signup and view all the answers

What specific communication to the dental lab is crucial when making ceramic crowns by indicating which tooth/teeth should be made 'in shade'?

<p>The laboratory prescription</p> Signup and view all the answers

Describe the rationale behind blocking out undercuts before taking the final impression for porcelain veneers when large black triangles exist between teeth.

<p>To prevent the teeth from being pulled out; if there are large black triangles between, block them out prior the impression</p> Signup and view all the answers

In the aesthetic try-in for conventional complete dentures, how many extra visits, in total, does this add to the overall visit plan?

<p>1 visit</p> Signup and view all the answers

What is the amount of spacer required for alginate for final impression?

<p>3mm</p> Signup and view all the answers

Why is it important that the dental laboratory should be notified on the laboratory prescription form that the patient has an unstable occlusion?

<p>To design a Co/Cr framework</p> Signup and view all the answers

During the fabrication of a conventional complete denture, what is the purpose of border molding during secondary impressions?

<p>To recreate spacing using greenstick compound</p> Signup and view all the answers

In complete denture fabrication, what information should be included on the laboratory prescription when making acrylic dentures?

<p>That you are making acrylic dentures.</p> Signup and view all the answers

When fabricating a copy denture, what materials are used to take the initial impression of the patient's existing dentures?

<p>Stock trays and silicon putty.</p> Signup and view all the answers

For cobalt-chrome RPDs, why is it important to stabilize the patient's oral health before proceeding with the prosthodontic treatment?

<p>To ensure caries-free and periodontal disease-free conditions.</p> Signup and view all the answers

When taking primary impressions for a Cobalt-Chrome RPD, what additional material can be used in conjunction with alginate?

<p>Green stick or impression compound.</p> Signup and view all the answers

What is the purpose of using wax or Futar D during the jaw relationship registration for a cobalt-chrome RPD?

<p>To register the bite in ICP</p> Signup and view all the answers

Before the patient's visit for tooth preparations and secondary impression for an RPD, what steps must be completed with articulated casts?

<p>Survey the articulated case, design RPD metal framework and identify any tooth preparations required.</p> Signup and view all the answers

When is it inappropriate to use Impregum for secondary impressions when fabricating a cobalt-chrome RPD?

<p>If interdental spaces are large.</p> Signup and view all the answers

When fabricating a Cobalt-Chrome RPD, what is a critical step during the 'teeth in wax try-in' to ensure patient satisfaction?

<p>Making sure the patient is happy with teeth shade, position and mould.</p> Signup and view all the answers

Describe the primary difference in impression techniques between a Cobalt-Chrome RPD for a patient with adequate opposing teeth versus one for a patient without enough opposing teeth.

<p>Those with require alginate impressions, while those without use wax rims register the horizontal and vertical relationship</p> Signup and view all the answers

In the context of mandibular implant-retained overdentures, what are ball abutments?

<p>Healing caps or studs that engage with the overdenture.</p> Signup and view all the answers

When fabricating an implant-retained overdenture, why it is important to ask for spacing over the implant abutments?

<p>For the picking up of the ball abutments and close fitting in posterior ridge area</p> Signup and view all the answers

What is a key consideration when selecting inserts (Clix) for a mandibular implant-retained overdenture, and what colors are typically available?

<p>Retention strength with yellow (low) or red (high) options.</p> Signup and view all the answers

For an acrylic partial denture, what material might be used to modify a stock tray?

<p>Green stick compound</p> Signup and view all the answers

During secondary impression for an acrylic partial denture, what modifications might be needed to teeth in the model?

<p>To create undercut, reduce undercut or improve path of insertion.</p> Signup and view all the answers

When setting up for jaw registration for an acrylic partial denture, what registrations need to be made?

<p>Register the horizontal and vertical jaw relationship</p> Signup and view all the answers

State an instance in which you would request to add wrought wire clasps to an acrylic partial denture

<p>If required to aid denture retention.</p> Signup and view all the answers

When fabricating a metal ceramic crown, what occlusal information is relayed to the lab?

<p>Specify metal/ ceramic occlusal surface.</p> Signup and view all the answers

When considering the need for a Facebow during a bite registration procedure, when is its employment mandatory?

<p>If you are preparing multiple anterior teeth.</p> Signup and view all the answers

What should be specified for a metal ceramic crown, in terms of shade?

<p>Select the shade for the crown.</p> Signup and view all the answers

What should be specified for a metal ceramic bridge, in terms of the pontic?

<p>Specify type of pontic</p> Signup and view all the answers

When is a facebow mandatory when making a metal ceramic bridge?

<p>If bridge is anterior teeth and/or three units bridge</p> Signup and view all the answers

In the context of a resin-bonded bridge, what is the primary aim when preparing the supporting teeth?

<p>Creating enamel-only preparation, as conservatively as possible.</p> Signup and view all the answers

For a resin-bonded bridge, what design consideration is important for posterior bridges?

<p>Consider rest seat preparation and 180 wraparound effects</p> Signup and view all the answers

In the process of cementation for a resin-bonded bridge, what steps are crucial before applying the bonding agent?

<p>Etch and isolate the abutment tooth/teeth and Silanate the metal wing(s).</p> Signup and view all the answers

When fabricating an overdenture, what type of trays might be used for primary impressions and what material can the trays be modified with?

<p>Use stock trays and alginate. Modify trays using compound.</p> Signup and view all the answers

During preparation of the supporting teeth for an overdenture, name two procedures that might be completed.

<p>Doming, Coping, precision attachment, RCT</p> Signup and view all the answers

What is the purpose of the 'try-in paste' used during the cementation phase of porcelain veneers, and what critical decision does it facilitate?

<p>To choose the correct shade of cement</p> Signup and view all the answers

After preparation of teeth to be veneered, what should you do to large black triangles between teeth?

<p>Block them out prior to the impression.</p> Signup and view all the answers

When using the 'doming' technique on abutment teeth prepared to receive an overdenture, what specific modification is made to the clinical crown and why is it essential for the long-term success of the restoration?

<p>The clinical crown is rounded to reduce lateral forces and prevent wear.</p> Signup and view all the answers

What is ICP?

<p>Balanced three-point occlusal contact, one anteriorly and one in each posterior buccal segment</p> Signup and view all the answers

Alginate in thicknesses of more than 5mm is accurate and easily flexes.

<p>False (B)</p> Signup and view all the answers

The patient's oral health doesn't need to be stabilised before the provision of Co/Cr (caries free and free of periodontal diseases).

<p>False (B)</p> Signup and view all the answers

The amount of _____ depends on your choice of material for final impression.

<p>spacer</p> Signup and view all the answers

Sometimes you may want to ask for anterior (aesthetic) try-in only.

<p>True (A)</p> Signup and view all the answers

What does RVD stand for?

<p>Rest vertical dimension</p> Signup and view all the answers

What does OVD mean?

<p>Occlusal vertical dimension</p> Signup and view all the answers

For free-end saddles it is not advised to use green stick or impression compound in the stock tray first in edentulous saddles.

<p>False (B)</p> Signup and view all the answers

It is okay to use Impregum if the interdental spaces are large.

<p>False (B)</p> Signup and view all the answers

When using silicone you should only use one consistency of silicone; for example, medium-bodied.

<p>True (A)</p> Signup and view all the answers

Facebow is mandatory if you are preparing multiple anterior teeth for a metal ceramic crown.

<p>True (A)</p> Signup and view all the answers

Facebow is mandatory if you are preparing multiple anterior teeth for ceramic/composite crowns.

<p>True (A)</p> Signup and view all the answers

When preparing teeth to be veneered, you should prepare teeth to be veneered as conservative as possible.

<p>True (A)</p> Signup and view all the answers

In the conventional complete denture process, what is the purpose of the primary impressions?

<p>To create study models and a special tray.</p> Signup and view all the answers

What is the primary objective of border moulding during secondary impressions for complete dentures?

<p>To recreate spacing using greenstick compound.</p> Signup and view all the answers

Why is it critical to stabilize a patient's oral health before providing a Co/Cr RPD?

<p>To ensure the mouth is caries-free and free of periodontal diseases.</p> Signup and view all the answers

During the try-in stage for a metal framework RPD, what is the primary objective regarding occlusion?

<p>To ensure no premature contacts and teeth occluding accurately in ICP.</p> Signup and view all the answers

Specifically name the material to be used for obtaining secondary impressions when fabricating a cobalt-chrome removable partial denture.

<p>A runny mix of alginate, medium-bodied silicone or polyether.</p> Signup and view all the answers

Why are occlusal rims required when fabricating a cobalt-chrome RPD for a patient with not enough opposing teeth?

<p>To mount casts, occlusal rims will be required at this stage for a bite registration.</p> Signup and view all the answers

What is the purpose of using red compound in the posterior regions during the primary impression stage for a mandibular implant-retained overdenture?

<p>To obtain the correct impression in the posterior regions.</p> Signup and view all the answers

In the context of a mandibular implant-retained overdenture, what is the significance of specifying spacing over the implant abutments during the primary impression?

<p>To create space for the picking up of ball abutments.</p> Signup and view all the answers

During the try-in stage of an overdenture, what is the purpose of new bite registration?

<p>Ensuring accurate fit and occlusion.</p> Signup and view all the answers

For an acrylic partial denture, what should you do if a patient needs more denture retention?

<p>Add wrought wire clasps.</p> Signup and view all the answers

When is a facebow mandatory in the fabrication of a metal ceramic crown?

<p>When preparing multiple anterior teeth.</p> Signup and view all the answers

What is a key consideration when planning a provisional crown for a metal ceramic crown?

<p>Guidance index is required.</p> Signup and view all the answers

What should be specified when requesting a metal ceramic crown from the dental laboratory?

<p>Ceramic extension, metal/ceramic occlusal surface, and shade.</p> Signup and view all the answers

What is the first step in the crown cementation process?

<p>Removing the temporary restoration.</p> Signup and view all the answers

During secondary impression for ceramic crowns or composite crowns, what preparation is made?

<p>Preparation of tooth /Guidance index is required.</p> Signup and view all the answers

When are you able to use a president tray when making ceramic or composite crowns?

<p>Soft tissue management and taking the final impression.</p> Signup and view all the answers

When building a metal ceramic bridge, when does the metal try in stage get skipped?

<p>If not required.</p> Signup and view all the answers

What information, specific to the bridge, must be communicated to the lab when requesting fabrication of a metal ceramic bridge?

<p>Tooth/teeth that the bridge is for and shade.</p> Signup and view all the answers

What is a key consideration in preparing the teeth for a resin-bonded bridge (RBB)?

<p>Preparation should be within the enamel and as conservative as possible.</p> Signup and view all the answers

In a resin-bonded bridge, what is the function of rest seat preparation and 180 wraparound effects?

<p>Preparation and wraparound offer the most support.</p> Signup and view all the answers

During complete denture fabrication, if a laboratory prescription notes that the patient has an unstable occlusion, has RCD establishment been completed?

<p>No.</p> Signup and view all the answers

During a try-in denture stage, what actions need to be completed?

<p>Check teeth shade mould and position, ensure articulation, and check lab prescription.</p> Signup and view all the answers

When is a facebow mandatory in dental prosthetics?

<p>If you are preparing multiple anterior teeth.</p> Signup and view all the answers

When is cementum applied during porcelain veneer?

<p>Last.</p> Signup and view all the answers

Why is it important to block out black triangles before taking an impression for porcelain veneers?

<p>For optimized results.</p> Signup and view all the answers

What is the purpose of OHI?

<p>To provide oral hygiene instructions.</p> Signup and view all the answers

What should a dentist keep in mind about impression techniques and materials?

<p>Different impression techniques and materials.</p> Signup and view all the answers

During records for the maxillary implant overdenture, you may consider changing the insert clix into what at this stage?

<p>High retentive red clix insert.</p> Signup and view all the answers

What is the specialty of dentistry pertaining to the diagnosis, treatment planning, rehabilitation, and maintenance of oral structures?

<p>Prosthodontics</p> Signup and view all the answers

Define a complete denture.

<p>A complete denture is a fixed or removable dental prosthesis that replaces the entire dentition and associated structures of the maxillae or mandible.</p> Signup and view all the answers

List some anatomical feature(s) of edentulous ridges?

<p>Incisive papilla, labial frenum, buccal sulcus, palatine fovea, hamular notch, maxillary tuberosity.</p> Signup and view all the answers

Mention the name of one of the main steps followed when constructing dentures?

<p>History, Examination, and Primary impression</p> Signup and view all the answers

What are the two main requirements a denture should fulfill?

<p>To have appropriate form and appearance and to have good retention at rest.</p> Signup and view all the answers

Describe the forces required for stability of a denture?

<p>Retentive forces should be greater than displacing forces and there should be adequate support from denture bearing areas.</p> Signup and view all the answers

Name four types of complete dentures?

<p>Conventional, immediate, copy, tooth supported overdentures, implant supported overdentures</p> Signup and view all the answers

During the first clinical visit, what should a dentist note regarding the history of a patient?

<p>Importance of full history of patient complaint and reason for attendance, problems with existing dentures, full medical history, social history</p> Signup and view all the answers

What is the difference between denture retention, support, and stability?

<p>Denture retention is resistance to vertical pulling force, denture support is resistance to vertical forces of mastication, and denture stability is resistance to horizontal and oblique forces.</p> Signup and view all the answers

What should a dentist consider when performing an extraoral examination of a potential denture patient?

<p>Their biological and chronological age, gait and mobility, facial tissues, Temporomandibular joint.</p> Signup and view all the answers

What is the difference between a knife-edge ridge and a flat ridge?

<p>A knife-edge ridge has adequete height but NOT in width, while a flat ridge is inadequate in both height and width.</p> Signup and view all the answers

When making primary impressions for complete dentures, what should you THINK about?

<p>The maxillary and mandibular denture bearing foundations, disinfection procedures, selection of impression material, Tray selection, What equipment/materials are needed</p> Signup and view all the answers

What are some notes to consider when creating impressions?

<p>Muco-static (minimally compressive) and Muco-compressive Impression Techniques</p> Signup and view all the answers

Describe an admix impression material.

<p>Admix consists of 3 parts by weight impression compound and 7 by weight greenstick, mixed together in hot water using vaselined gloves</p> Signup and view all the answers

What is the goal of a 'neutral zone impression'?

<p>Complete denture will be most stable if it lies within the neutral zone, which is a zone of minimal conflict between the tongue on one side and the lips and cheeks on the other</p> Signup and view all the answers

During the second clinical visit, what additional materials are needed (beyond the impression materials.)?

<p>Greenstick, anterior stops, adhesive, adhesive for alginate and silicon.</p> Signup and view all the answers

When performing Jaw registration what is the recommended vertical naso-labial angle?

<p>90 degrees</p> Signup and view all the answers

When performing Jaw registration to determine the canine line, list two places to use vertically from to derive this line.

<p>Floss vertically from inner canthus or the inner canthus via lateral border of alar cartilage</p> Signup and view all the answers

What are some biometric principles used during 'jaw registration' for the setup of artificial teeth?

<p>*The positioning of maxillary teeth labial/buccal to the ridge promotes lower denture stability. *Lower teeth are placed over the ridge such that the palatal cusps of uppers occlude in fossae of lowers and the forces are directed appropriately. *If the lower teeth are over the ridge, the tongue is not restricted. *Lower central fossae should be centred over the crest of lower edentulous ridge.</p> Signup and view all the answers

During try-in of acrylic dentures, what characteristics are inspected?

<p>The Resting Face Height, the Occlusal Vertical Dimension, and the Freeway Space.</p> Signup and view all the answers

What factors are used to dictate appropriate shade, anterior versus posterior, and any disastemas.

<p>Size of the jaws and intermaxillary space as assessed by photographs.</p> Signup and view all the answers

When are the dentures finally assessed on the articulator?

<p>4th Clinical visit</p> Signup and view all the answers

How overextension of trial dentures fixed and managed?

<p>Pressure indicating paste and visual inspection- trim and polish for small adjustments, Major overextension – may need to border molding with green stick tracing compound and reline to regain peripheral seal.</p> Signup and view all the answers

Explain the process and rationale for 'reline' versus 'rebase'.

<p>When the appropriate has deteriorated with occlusal, peripheral, or impression issues relining or rebasing may be the treatment of choice. These steps may be skipped by the laboratory.</p> Signup and view all the answers

Is any special type of cleaner recommended for metal/acrylic dentures?

<p>The alkaline peroxides can be a suitable cleanser.</p> Signup and view all the answers

Tooth loss has a significant impact on patients' quality of life - what are three ways loss can manifest?

<p>Presenting complaint, history of complaint, social history</p> Signup and view all the answers

List at least three advantages of adding anterior labial flanges ?

<p>Greater stability, provide a more stable appearance as the bone resorbs, They are much easier to reline as and when required.</p> Signup and view all the answers

List several clinical steps for taking 'Working' Complete Denture imressions.? (Visit 2 with working impressions)

<p>Stops may be added and the borders modified., Remember to record the functional width and depth of the sulcus, if sufficient tooth contact - take a wax interocclusal record should be taken and shade and mould of the teeth obtained.</p> Signup and view all the answers

When setting teeth for interim dentures, why can't the exact position of the final teeth be checked?

<p>Because teeth that are to be extracted and immediately replaced by the denture are still in-situ in the jaws.</p> Signup and view all the answers

A patient requires an additional spare set of dentures, what is a technique that is often used in this scenario, and why?

<p>Copy denture technique due to the improved likelihood of musculature coordination / ability to maintain it after habituation.</p> Signup and view all the answers

What is the first step in making a copy denture?

<p>Four plastic disposable stock impression trays are selected (2 upper and 2 lower</p> Signup and view all the answers

What is the purpose of making the incisal teeth labial placement promote the mandibular placement?

<p>Promote lower denture stability, maintain proper tongue position, centering or appropriate pressure</p> Signup and view all the answers

When checking that dentures correctly connect occlusally - are contacts performed bilaterally or unilaterally? why?

<p>Contacts are inserted bilaterally, as unilateral positioning will encourage the lateral positioning of the face.</p> Signup and view all the answers

What should you tell a patient to use to clean their dentures / what is the denture hygiene instruction?

<p>rinse with water after every meal and debris removed by brushing with a soft brush, soap, and cold water</p> Signup and view all the answers

What is the first step a good clinician takes to start solving a denture complaints?

<p>Good diagnosis of patient complaints.</p> Signup and view all the answers

What is the most important factor in determinining success for patients with partial dentures?

<p>Maintaining acceptable plaque control, to ensure reduction of partial denture damage.</p> Signup and view all the answers

Explain the Kennedys Partially endentulous classifications?

<p>*Class I: Bilateral edentulous areas located posterior to the remaining natural teeth. *Class II: A unilateral edentulous area located posterior to the remaining natural teeth. *Class III: A unilateral edentulous area with natural teeth located both anterior and posterior to it. *Class IV: A single but bilateral (crossing the midline) edentulous area located anterior to the remaining natural teeth.</p> Signup and view all the answers

What features should one ensure is good during the examination period to limit adjustments?

<p>Make sure dentures are adapted, stability is maintained, and that everything is up to date.</p> Signup and view all the answers

What is the unit of a Class I or II partial denture that prevents or resists movement or rotation of the base(s) away from the residual ridge called?

<p>Indirect retainer.</p> Signup and view all the answers

Besides an extraction, what may cause an inability of upper occlusal wax rims to be placed and for check/recoding to occur?

<p>Defletive contact of lateral deviations of the mandible.</p> Signup and view all the answers

There is a space that must be accounted for between when the patient is at facial height - is this the resting height or another measure? how should this additional measures change process and wax up of restorations?

<p>Should be subtracting from the facial height to subtract and equal vertical contact where the over-vertial is determined.</p> Signup and view all the answers

Before being able to place components related to a cast in the mouth, what must be removed / accounted?

<p>Undercuts must be prepared and removed with some of the denture, but without causing too wide a gap.</p> Signup and view all the answers

What tissues are replaced with a non-permanent removable prosthesis in removable prosthodontics?

<p>Teeth and soft tissues.</p> Signup and view all the answers

Name two aspects of patient care that are directly linked to clinical skills in removable prosthodontics.

<p>Oral surgery and maxillofacial surgery.</p> Signup and view all the answers

List 3 factors that might compromise dental extractions or delay healing.

<p>Presenting complaint, History of complaint, and Medical History.</p> Signup and view all the answers

Define a 'copy denture'.

<p>It is a template denture or replica denture.</p> Signup and view all the answers

What are the three surfaces that should be examined on a denture to identify factors causing looseness?

<p>Fit, polished, and occlusal surfaces.</p> Signup and view all the answers

According to Applegate's rules, what should be considered in a Kennedy classification?

<p>Only natural teeth involved in the definitive dentures.</p> Signup and view all the answers

Name four stages in the clinical sequence for upper definitive impression procedures.

<p>Assessment of custom tray on the cast; Greenstick application at Posterior border; Lateral aspects of tuberosities (width of sulcus); and Anterior stops (single anterior stop or canine stops); Assessment of custom tray in the mouth: consider muscle attachments, reassess extension and adjus</p> Signup and view all the answers

What is a common instruction given to a patient regarding denture wear immediately following extractions when fitting an immediate denture?

<p>Do not remove the dentures for 24 hours.</p> Signup and view all the answers

If using Greenstick tracing compound, what should you always do before moulding?

<p>Tempered in warm water</p> Signup and view all the answers

Name three features discussed related to examination of hard and soft tissues, during intraoral examination.

<p>Examination of hard and soft tissues; Full examination of the edentulous ridges and the general denture bearing areas with consideration of height, width, and consistency of ridge ; Muscle attachments and how they can affect the success of the denture with frenal attach</p> Signup and view all the answers

What is the name of the area that is known to be a zone of minimal conflict between the tongue on one side and the lips and cheeks on the other side?

<p>Neutral zone.</p> Signup and view all the answers

What feature, if overextended, requires trimming but if under extended, requires greenstick?

<p>Peripheries</p> Signup and view all the answers

Name the three classifications of types of removable partial dentures.

<p>Class V, Class II, and Class III.</p> Signup and view all the answers

Why should an impression need to be re-done?

<p>If it doesn't meet the minimum standards.</p> Signup and view all the answers

Mention one way of testing the setting of teeth.

<p>Try the teeth.</p> Signup and view all the answers

Does a prosthodontist work alone?

<p>No, the work with a team.</p> Signup and view all the answers

When should the dentist schedule another appointment?

<p>For the next day.</p> Signup and view all the answers

Name 3 things that occur relating to Dentistry with age.

<p>Increased mobility, transport, and appointments, communication, improved vision, impaired hearing, and cognitive function.</p> Signup and view all the answers

Name an aspect that relates to the anatomy, that a dentist relevantly identifies when designing their complete denture.

<p>Accurately identify the anatomy relevant to the design of complete dentures.</p> Signup and view all the answers

Why would a custom tray may be needed?

<p>To have the borders modified as necessary.</p> Signup and view all the answers

Patients that require support are defined under what? What do they do?

<p>Expertise, gagging or ongoing denture extenstions</p> Signup and view all the answers

Where should dentures lie for them to be stable?

<p>In the neutral zone, a zone of minimal conflict between the tongue on one side and the lips and cheeks on the other</p> Signup and view all the answers

After the examination, what is assessed?

<p>the patient's expectations</p> Signup and view all the answers

Give 2 examples you may find, when assessing gait and mobility with the patient.

<p>clicking and limitation of opening; anything abnormal</p> Signup and view all the answers

If a patient requires their denture adjusted from their soft tissue, what should the dentist do?

<p>Reline</p> Signup and view all the answers

Name three types of issues that may occur with complete dentures.

<p>Problems attributed to the dentures, problems attributed to the denture bearing foundations, a combination of the previous two, complex problems involve the psychological profile of the patient and be unrelated to clinical expertise</p> Signup and view all the answers

Topical Fluoride is required for various steps, can mention one.

<p>applying a fluoride-containing vanish; applying the teeth; drying the teeth</p> Signup and view all the answers

What 2 choices can the dentist can modify pertaining to the extensions of the trays?

<p>Over or Under</p> Signup and view all the answers

Topical Fluoride is required for various steps, that include which important aspect?

<p>Following OH</p> Signup and view all the answers

What is the recommendation to the patient, should they find their appliance to be loose.

<p>to come in and book an appoinment with their dentist</p> Signup and view all the answers

Name three benefits of why a metal framework should get considered.

<p>There are many; if it is to be provided, the design and study casts must be in the workbox; always ask for a wax try-in first before asking the technician to make a metal casting; The casts must be mounted on a semi-adjustable articulator</p> Signup and view all the answers

What is essential when there's damage to the teeth? (2 words)

<p>Plaque control</p> Signup and view all the answers

Following design for the patient, what's next to consider?

<p>Design framework</p> Signup and view all the answers

What does the operator substract from the height from a patient. ?

<p>A value for freeway of speech.</p> Signup and view all the answers

What material is commonly applied with the function of displacing bone?

<p>Hydroxide.</p> Signup and view all the answers

What are removable prosthodontics primarily concerned with?

<p>Replacing teeth and soft tissues with a non-permanent, removable prosthesis, often in the form of dentures.</p> Signup and view all the answers

List two parts this handbook consists of.

<p>Complete removable prosthodontics and Partial removable prosthodontics.</p> Signup and view all the answers

Name one objective of this handbook.

<p>To provide dental students with overviews of the removable prosthodontics topic or To support students' patients' care with step-by-step guidance on clinical procedures and stages.</p> Signup and view all the answers

What patient-related factors should be considered when deciding on a treatment plan?

<p>Full history of patient complaint, previous denture experience, problems with existing dentures, full medical history, and social history.</p> Signup and view all the answers

What is the significance of evaluating facial support and profile during the extra-oral examination?

<p>To assess the presence of adequate lip support and to look for any over-closure.</p> Signup and view all the answers

In the context of denture construction, what is 'freeway space'?

<p>The distance between the occluding surfaces of the maxillary and mandibular teeth when the mandible is in its resting position.</p> Signup and view all the answers

Briefly describe the key features that define a Class III ridge shape according to the provided Ridge Classification.

<p>Class III ridges are well-rounded, in both height and width.</p> Signup and view all the answers

What is the primary focus when evaluating existing dentures intraorally?

<p>Fit, retention, and stability for each denture individually and together.</p> Signup and view all the answers

Outline what should be included in a full discussion with the patient before commencing denture treatment.

<p>The patient's complaints, an assessment of their expectations, and a complete discussion about the treatment plan, followed by obtaining consent.</p> Signup and view all the answers

Briefly define denture support and its clinical importance.

<p>Denture support is the resistance to vertical forces of mastication and other occlusal forces that are applied toward the denture bearing area.</p> Signup and view all the answers

What is Admix made out of and what is it used for?

<p>Admix consists of 3 parts by weight impression compound and 7 parts by weight greenstick, mixed together in hot water.</p> Signup and view all the answers

What is the neutral zone and why is capturing it important in complete denture prosthetics?

<p>The neutral zone is the area of minimal conflict between the tongue, lips, and cheeks. Dentures are most stable if they lie <em>within</em> it.</p> Signup and view all the answers

What biometric principles guide the positioning of artificial teeth in complete denture construction?

<p>To place the artificial teeth in pre-extraction sites and positions.</p> Signup and view all the answers

Describe some instructions you would give to a laboratory technician, regarding setting up teeth.

<p>Articulate upper and lower wax rims &amp; set up the teeth selected, and wax-up for denture wax trial.</p> Signup and view all the answers

Describe essential aspects to check during the denture trial/try-in appointment.

<p>Correct patient's dentures, fit on models, models are undamaged, if post dam present on cast.</p> Signup and view all the answers

Describe three instructions relating to denture hygiene, that a dental professional should give to a patient to ensure they are cleaned appropriately.

<p>Rinse dentures with water after every meal, remove debris by brushing with a soft brush, Acrylic dentures may be soaked in an alkaline hypochlorite solution for 20 mins.</p> Signup and view all the answers

Outline three aspects that must be considered when managing a patient's expectations for immediate dentures.

<p>Discussion should be focused around what immediate dentures are and the offers, dentures are not an alternative to having natural teeth, management of expectations.</p> Signup and view all the answers

What are some systemic measures that a dental professional should take to manage a patient with reduced retention.

<p>Treating underlying cause and changing medication.</p> Signup and view all the answers

Why are guiding surfaces important in partial denture design?

<p>They provide stability to a denture by limiting the path of placement. They aid retention if rigid parts of the denture contact tooth surfaces that are undercut.</p> Signup and view all the answers

In assessing stability in removable partial denture design, what should be determined and checked to then be prevented?

<p>The clasp axis should be determined, and movement either side of this axis is prevented by indirect retainers.</p> Signup and view all the answers

What are the Applegate's rules?

<p>Consist of 4 rules.</p> <ol> <li>The classification should include only natural teeth involved in the definitive dentures and should follow rather than precede extraction 2.If the third and second molars are missing and not to be replaced, they are not considered in the classification. But if they are present and used as an abutment, they are considered in the classification 3.The main classification is determined by the most posterior area (or areas) 4.Edentulous areas other than those determining classification are called “modification,</li> </ol> Signup and view all the answers

How is occlusal vertical dimension calculated in complete denture cases where there is no occlusal stop?

<p>The dental professional must subtract an appropriate value, for what they believe the freeway space to be, from the patient's resting facial height.</p> Signup and view all the answers

What does a 'split plate technique' do, and why is it important in the context of removable prosthodontics?

<p>It relates to mounting casts, with the split feature enabling removal of it's mounting plate, and transferring to measurement devices</p> Signup and view all the answers

What key aspects need to be accounted for, when there appears to be little to no space for a major connector.

<p>Whether or not the setup should performed for function and/or appearance.</p> Signup and view all the answers

What is required in setting teeth for a try in, in cases in which the jaw relationship is found to be incorrect?

<p>Requires modifications that need to be carried out before continuing with the next stages.</p> Signup and view all the answers

During the final placement of a removable partial denture, what key checks must be performed to ensure a successful outcome?

<p>Fit of components, retention and stability, and occlusion.</p> Signup and view all the answers

How should one insert/ remove dentures, to ensure that they are handled correctly, as to minimize damage.

<p>Patients should be taught the correct way to handle the denture and the vulnerable components must be pointed out.</p> Signup and view all the answers

Explain two scenarios where an immediate denture might be favorable over a conventional denture, include the advantages.

<ol> <li>Replacing anterior teeth due to aesthetic requirements.</li> <li>When the patient already has an existing denture, so use to as not remove support of a facial profile of the patient.</li> </ol> Signup and view all the answers

Why is important to know if the technician utilized a split cast, for the production of the removable partial dentures.

<p>This will allow the primary case to be removed from its mounting plate that is on the articulator from where it was surveying.</p> Signup and view all the answers

How do you modify a tray for the use of alginate?

<p>With impression compound where necessary, for example for free end saddles, to achieve adequate border extension and to partially fill the space between tray and tissues. Then to use high viscosity alginate.</p> Signup and view all the answers

What do you do with the material selected to take the proper impressions?

<p>Apply Adhesive accordingly, thin layer and allow to dry, for alginate and silicon or no adhesive is required if ZO&amp; E to be used.</p> Signup and view all the answers

What do you consider when assessing a case for the use of base plates?

<p>To assess if they are too large and bulky, or what type of lip they provide, or how stable rim should be in mouth, what the best occlusion is.</p> Signup and view all the answers

List two components the patient must have in what order, in order to get to the appointment.

<p>The patient must have models mounted on an articulator to be brought to the office and the appropriate special trays.</p> Signup and view all the answers

What do patients need to be weary of when handling dentures and/ or frameworks?

<p>That certain parts are vulnerable to breakage.</p> Signup and view all the answers

Explain in detail the classification needed for the Kennedy Classification Type V.

<p>Same as Class 3 but anterior teeth incapable of providing adequate support.</p> Signup and view all the answers

During denture insertion, what should be discussed with the patient to ensure they know how to insert/ remove dentures properly?

<p>That patients should be shown the correct way to insert/ remove dentures, and note to them where vulnerable points are for denture insertion.</p> Signup and view all the answers

A patient wearing a complete denture has lost the ability to discern the taste of food. What type of prosthesis could help reduce the risk of taste bud masking?

<p>Horse shoe palate complete denture.</p> Signup and view all the answers

A patient refuses to have full palatal coverage in their upper complete denture. Is this acceptable? What potential problems can you expect to see as a clinician?

<p>Yes. You can expect to see retention and support issues.</p> Signup and view all the answers

The design should first be drawn on a duplicated design sheet. After it has been checked by who and what should you use?

<p>After it has been checked by a member of staff the design should be drawn accurately on the study cast using a coloured pencil with a sharp point and be copied (in ink) onto the chart included on the laboratory card.</p> Signup and view all the answers

Your patient has trouble with mouth soreness. Which material should be used to combat this irritation?

<p>A soft lining for the material should be used. (Will be covered on seminar on relines)</p> Signup and view all the answers

What is the primary focus of removable prosthodontics?

<p>Replacing teeth and soft tissues with non-permanent removable prosthesis, often known as dentures.</p> Signup and view all the answers

State two components that are part of this handbook.

<p>Complete removable prosthodontics and Partial removable prosthodontics.</p> Signup and view all the answers

What considerations should be taken into account during treatment planning for immediate replacement dentures?

<p>Understand the principles, treatment planning considerations, clinical and laboratory procedures for immediate replacement dentures.</p> Signup and view all the answers

Name three objectives to be achieved in complete denture construction.

<p>Understanding how to assess an edentulous patient, describing mouth preparation for dentures, and knowing how to take impressions.</p> Signup and view all the answers

In the discussed patient scenarios, what underlying condition is often a complicating factor in prosthetic treatment?

<p>Type 2 diabetes.</p> Signup and view all the answers

List three aspects relevant to dentistry, considering the aging patient.

<p>Mobility, transport and appointments; communication; and impaired vision.</p> Signup and view all the answers

Identify four aspects that are considered reasons for missing teeth replacement.

<p>Aesthetics, function, comfort, speech, and psychological well-being.</p> Signup and view all the answers

Name the three key characteristics of a stable denture

<p>Adequate support from denture bearing areas, retention, and stability.</p> Signup and view all the answers

What are the five types of complete dentures listed?

<p>Conventional, immediate, copy, tooth-supported overdentures, and implant-supported overdentures.</p> Signup and view all the answers

List at least four key points in a clinical guidance for history taking when treating denture patients.

<p>Patient complaints, previous experience, problems with existing dentures and full medical history.</p> Signup and view all the answers

Describe three observations to be made during an extra-oral examination of a prospective denture patient.

<p>Biological and chronological age, gait and mobility, and facial tissues.</p> Signup and view all the answers

According to the provided text, what is the primary aim of biometric principles in complete denture construction?

<p>To place artificial teeth in pre-extraction sites and positions.</p> Signup and view all the answers

List two adjustments to be checked during the try-in stage of complete denture construction.

<p>The resting face height (RFH) and occlusal vertical dimension (OVD).</p> Signup and view all the answers

What is the general guideline to providing and testing the position of the post dam?

<p>The post dam is marked on the cast, and further adjustments are made if the patient shows excessive gagging.</p> Signup and view all the answers

What instructions regarding denture hygiene should be given to a patient after receiving new complete dentures?

<p>Dentures should be rinsed with water after every meal and debris removed by brushing with a soft brush, soap and cold water.</p> Signup and view all the answers

When delivering a complete denture, what are three clinical checks that should be preformed?

<p>Fit, retention, and occlusion.</p> Signup and view all the answers

What are some instructions you would give regarding acrylic resin and metal based dentures?

<p>Acrylic resin dentures may be soaked in alkaline or sodium hypochlorite, whereas metal-based dentures should be cleaned with alkaline peroxides while taking care to avoid alkaline hypochlorite due to corrosion.</p> Signup and view all the answers

From the perspective of immediate dentures, when should the appointment(s) to have teeth extracted be scheduled? and why is this important?

<p>After the trial dentures are complete, so that the immediate dentures can be produced in time for insertion at extraction.</p> Signup and view all the answers

For immediate dentures with an anterior labial flange, what advantages do they provide?

<p>Greater stability, improved strength of denture base, no interference with sutures and easier to reline.</p> Signup and view all the answers

What are three indications for a copy denture?

<p>Satisfactory qualities of existing complete denture, a request for a spare set or general deterioration of the denture.</p> Signup and view all the answers

List 3 advantages of planning for removable partial dentures before any other restoration.

<p>Survey the tripods, draw a design for the partial dentures, and can affect direct restorations.</p> Signup and view all the answers

Differentiate between a direct and indirect retainer regarding partial dentures.

<p>Direct retainers prevent against dislodging forces, whereas indirect retainers prevent against movement away from tissues.</p> Signup and view all the answers

What are 3 principles to follow during partial denture design.

<p>Simplicity to minimize framework, obtain optimal denture base adaptation and plan for the future.</p> Signup and view all the answers

Describe the two groups to the Applegate rules for treatment planning a partial denture.

<p>Class V, same as class 3, but with anterior teeth and Class VI, complete occlusal load can be tooth-borne entirely.</p> Signup and view all the answers

What are the three main types of malocclusion that may present for a patient requiring dentures and impact the ability to have 'three-point occlusal contact'? Briefly describe each.

<p>Type 1: Patients with balanced three point contact. Type 2: Patients with occlusal contact that cant be placed in intercuspal position without occlusal rims. Type 3: Patients without an occlusal stop and require calculations to estimate space.</p> Signup and view all the answers

When checking the fit of a metal framework for a partial denture, what does it mean to have some instability due to spacing, and why should wax not be added here (at least right away?)?

<p>It means that the mesh retention is causing the instability and wax should not be added because it's necessary to retain stability of framework</p> Signup and view all the answers

List four factors noted in a partial denture procedure that determines prognosis.

<p>Health of tissues, periodontal health, and findings relate to denture.</p> Signup and view all the answers

What are the major objectives of setting up teeth in the try in at the wax stage.

<p>Check position and if teeth are acceptable.</p> Signup and view all the answers

A patient complains that their complete denture feels loose. Using principles from the document, describe your initial approach to evaluating this issue.

<p>First, determine <em>which</em> denture (maxillary or mandibular) is loose. Then, systematically evaluate the fit surface, polished surface, and occlusal scheme to identify potential problems such as over/underextension or occlusal interferences.</p> Signup and view all the answers

According to the reading, what is the initial step if a patient reports "pain under the denture"?

<p>Identify the precise location of pain, and whether it is localised or generalized.</p> Signup and view all the answers

List two systematic diseases that has a part on poor denture outcomes.

<p>Xerostomia, systemic disease leading to reduced neuromuscular control.</p> Signup and view all the answers

How would you manage a patient that has reduced retention?

<p>Recommend the patient to drink plenty of fluids, and use artificial saliva. Fixatives can be applied.</p> Signup and view all the answers

Elaborate on why alginate material can be advantageous to take as an impression for patients with a deep throat palette.

<p>It provides accuracy and use to take the impression of the palate when the patient has deep palate to reduce the gap between the tray and the palate</p> Signup and view all the answers

A patient presents with flabby and displaceable tissue in one or both arches. What is the recommended technique to perform the impression of dentures?

<p>Flabby tissue is easily displaced during, therefore we may need special consideration to avoid compressing the tissue</p> Signup and view all the answers

Describe the methods on fixing a patient that has issues closing and their upper rim is appropriately on their teeth.

<p>Remove wax from those parts of the upper rim contacting lower teeth until the rest vertical dimension minus the occlusal vertical dimension gives an appropriate freeway space.</p> Signup and view all the answers

Name two parts that this handbook consists of?

<p>Complete removable prosthodontics and Partial removable prosthodontic</p> Signup and view all the answers

What are the three clinical procedures that must be followed for the first clinical visit?

<p>History and Examination and Primary Impressions</p> Signup and view all the answers

Name the factors that full medical history could identify.

<p>Factors that might affect denture wearing experience e.g., xerostomia (pain and looseness), mucosal disease (pain), arthritis (difficulty in maintaining dentures), stroke (limited control), Parkinsons Disease (limited control) etc</p> Signup and view all the answers

Define Denture Support.

<p>The resistance to vertical forces of mastication, occlusal forces and other forces applied in a direction towards to denture bearing area.</p> Signup and view all the answers

What is the purpose of using greenstick compound in the border molding process?

<p>To capture the pear-shaped pad and the mesio-medial aspect of the retro molar pad</p> Signup and view all the answers

While performing jaw registration on a patient what are the 4 biometric principles to aim for when placing artificial teeth?

<p>The positioning of maxillary teeth labial/buccal to the ridge promotes lower denture stability; Lower teeth are placed over the ridge such that the palatal cusps of uppers occlude in fossae of lowers and the forces are directed appropriately; If the lower teeth are over the ridge, the tongue is not restricted; Lower central fossae should be centred over the crest of lower edentulous ridge.</p> Signup and view all the answers

What is combination syndrome?

<p>The characteristic features that occur when an edentulous maxilla is opposed by natural mandibular anterior teeth including loss of bone from the anterior portion of the maxillary ridge leaving behind fibrous ridge with no bone support</p> Signup and view all the answers

List two disadvantages of a labial flange?

<p>May produce unnatural fullness of the lip and the patient may object to the change in appearance; Bony undercuts labial to the alveolar ridge may prevent the use of a flange unless they are surgically removed.</p> Signup and view all the answers

Name the three adjustments that must be made when fitting immediate dentures.

<p>Acrylic pearls and spicules; Open faced dentures, which enter into the lingual part of the socket; Flanges which enter too far into bony undercuts</p> Signup and view all the answers

Identify three key differences between conventional and copy dentures.

<p>Copy denture technique utilises desirable features of existing dentures; Copy dentures help reproduce polished surfaces of complete dentures; Copy dentures are done to improve other aspects of conventional dentures.</p> Signup and view all the answers

What should be considered before making the final decision on replacing a patient's old denture?

<p>The complexity of the procedure, patients economic state, general health, and understanding the patients goals for the new prosthetics and whether those desires can be met.</p> Signup and view all the answers

In the management of a patient with reduced retention in relation to xerostomia; what are four components of clinical management?

<p>Advice to drink water, sipping water and staying hydrated can help relieve dry mouth and lubricate the mucosa; Denture hygiene should be emphasis to reduce the chance of candida infection; Prescription of Artificial saliva (based on carboxymethylcellulose or mucin); If denture retention significantly reduce denture fixative might provide some improvement</p> Signup and view all the answers

What are the four classifications for removable partial dentures?

<p>Class I; Bilateral edentulous areas located posterior to the remaining natural teeth; Class II; A unilateral edentulous area located posterior to the remaining natural teeth; Class III; A unilateral edentulous area with natural teeth located both anterior and posterior to it; Class IV; A single but bilateral (crossing the midline) edentulous area located anterior to the remaining natural teeth</p> Signup and view all the answers

List the components of the CO/CR partial denture.

<p>Saddle (replace missing teeth), Rest seat (support/ indirect retention), Retainers; Clasps (direct retention; occlusally or gingivally approaching), Bracing &amp; reciprocation, Connectors (minor and major)</p> Signup and view all the answers

List the information required prior to designing the denture framework?

<p>Findings, obtained during examination of patient, related to health of oral tissues, periodontal health e.g., pocket depth, mobility: attitude of patient and design of present dentures; Radiographs of relevant areas; Study casts surveyed at right angles to the occlusal plane and at any tilt required to improve aesthetics, improve retention and/or avoid interference; Articulated study casts These are essential to ensure that adequate space and/or correct tooth contour exists for rests and clasp arms.</p> Signup and view all the answers

According to the reading what are the four clinical procedures for the sixth clinical visit?

<p>A-The patient should be asked for comments on the first week of wearing the dentures; B-A history must be taken of any complaints; C-The mouth must always be examined carefully following removal of the dentures since some patients claim to be perfectly comfortable even though extensive tissue damage is present.; D-Any inflammation of the denture-bearing tissues, which is not related to the border area, is most likely due to occlusal causes. Therefore, a careful inspection must be made of occlusal contact in tooth position and excursive movements, and the necessary adjustments made. The impression surface of the denture must not be eased empirically.</p> Signup and view all the answers

When recording the jaw relationship during record base fabrication, deflective occlusal contacts may be

<p>Corrected, or eliminated</p> Signup and view all the answers

Other than a patient requesting a more esthetic new set of teeth, what would be two valid reasons to consider fabricating a new removable prosthesis?

<p>Poor VDO, Poor fit</p> Signup and view all the answers

T/F the amount of decrease in vertical dimension may alter the ridge's ability to withstand forces?

<p>True</p> Signup and view all the answers

When providing instructions to a lab technician on the fabrication of the metal framework for RPD construction what two items should always be listed?

<p>Ensure a split cast technique is requested, as this will allow the primary cast to be removed from its mounting plate on the articulator to be transferred to a surveyor and Indicate the type of articulator on which the casts are to be mounted to facilitate denture design</p> Signup and view all the answers

Following insertion of an immediate denture the patient should have extractions on what date?

<p>The Same Day</p> Signup and view all the answers

What action should be taken if an undercut area is not effectively blocked out on the study cast prior to duplication during wax-up of an acrylic denture?

<p>Acrylic will flow there during processing and the denture will not seat.</p> Signup and view all the answers

When examining a metal framework try-in for RPD construction, why is DO NOT apply wax on the mesh retention?

<p>because it can lead to instability</p> Signup and view all the answers

What is meant by diagnostic additions with tracing compound, as discussed in the reading?

<p>Adding to the area to confirm that further support is needed</p> Signup and view all the answers

With what cleaning supplies should a patient clean their dentures?

<p>Soft brush plus soap.</p> Signup and view all the answers

What is one technique used to ensure the comfort of the intaglio of a complete denture?

<p>A facebow</p> Signup and view all the answers

What is a step which can be followed to achieve proper support for impression taking?

<p>Modify the tray with impression compound where necessary, for example for free end saddles, to achieve adequate border extension and to partially fill the space between tray and tissues.</p> Signup and view all the answers

What criteria is used to determine support teeth in free-end saddles for RPD's?

<p>Rests</p> Signup and view all the answers

How can you adjust for stability?

<p>Stability can be achieved using the correct material</p> Signup and view all the answers

How are the casts checked in a patient examination?

<p>Check tray extension by visual inspection, buccally- labially by direct vision and by using a mouth mirror in the lingual sulcus at the front of the mouth</p> Signup and view all the answers

What is one method to modify tooth contour?

<p>Removal of tooth tissue by selective grinding.</p> Signup and view all the answers

You've just delivered CoCr RPD to a patient. What's the FIRST thing you check?

<p>Seat It</p> Signup and view all the answers

What's a good way to find a high spot when seating metal framework?

<p>Disclosing Wax</p> Signup and view all the answers

T/F; RPD Framework should be checked for proper fit AFTER the cast is divested?

<p>FALSE</p> Signup and view all the answers

What should you as a clinician convey to the lab technician when a patient has asked "to lighten the shade (whiteness)," of their processed denture teeth, at the Try-In Appointment?

<p>DO NOT proceed; re-try another tooth mould</p> Signup and view all the answers

T/F; The VDO will never be affected when redoing records on the master cast.

<p>FALSE</p> Signup and view all the answers

What materials should be considered when the patient as a history of broken prostheses?

<p>Metal Framework</p> Signup and view all the answers

In denture construction, describe 3 factors contributing to loss of vertical dimension

<p>Wear of Dentition; Change Intracapsular/ Disc Derangement and Muscle Deterioration</p> Signup and view all the answers

A common error that occurs at denture appointments is an inaccurate mounting. List 3 steps a clinician can follow to best to ensure a more accurate record

<p>Use a stable baseplate in the maxilla and mandible; use the correct method to record; Always repeat until a certain the record is accurate</p> Signup and view all the answers

Prior to every step, what step must be taken when handling a denture?

<p>Decontaminate the object to prevent possible contamination.</p> Signup and view all the answers

When is the first clinical visit taken?

<p>Preliminary impression.</p> Signup and view all the answers

Name two materials science aspects that are key to removable prosthodontics.

<p>Anatomy, physiology, and dental materials science</p> Signup and view all the answers

List two objectives of the handbook regarding dental students.

<p>To provide overviews of removable prosthodontics and to support patient care with guidance on clinical procedures.</p> Signup and view all the answers

What are three clinical procedures used to decide treatment? (Based on what was learned)

<p>Medical history, extra and intra oral examination.</p> Signup and view all the answers

Name two specific elements to assess during extraoral examinations when evaluating a patient for complete dentures.

<p>Facial tissue, Gait and mobility</p> Signup and view all the answers

What should the posterior occlusal plane follow?

<p>Inferior border of alar cartilage posteriorly to 2/3 up the tragus.</p> Signup and view all the answers

Describe the main difference between a conventional complete denture and an immediate complete denture.

<p>An immediate denture is placed immediately after extractions, while a conventional denture is placed after the tissues have healed.</p> Signup and view all the answers

What are the advantages of incorporating a labial flange in an immediate denture?

<p>Improved retention, improved strength, no risk to sutures.</p> Signup and view all the answers

What is a copy denture also referred to as?

<p>Template denture or replica denture</p> Signup and view all the answers

What is the main goal of a copy denture technique?

<p>To utilize the desirable features of existing dentures and improve other qualities.</p> Signup and view all the answers

What is one contraindication for the use of a copy denture technique?

<p>Inaccurate occlusion.</p> Signup and view all the answers

What is the purpose of placing petroleum jelly in the putty when taking impressions with the copy denture technique?

<p>For ease of separation of the two halves of the mould.</p> Signup and view all the answers

Name two common patient complaints related to complete dentures.

<p>Looseness, pain and soreness, or dissatisfaction with appearance.</p> Signup and view all the answers

Name two causes for denture bearing foundations instability.

<p>Palatine torus or atrophic ridge that was dislodged upon impression.</p> Signup and view all the answers

Provide two characteristics of a tissue conditioner.

<p>To exhibit plastic flow</p> Signup and view all the answers

What is the first step in providing dentures? (According to text)

<p>Full review of patient history.</p> Signup and view all the answers

According to the text what is a solution to overextension?

<p>Pressure indicating paste.</p> Signup and view all the answers

What is the purpose of liners?

<p>Relief from pain.</p> Signup and view all the answers

From where does most support come from?

<p>Support normally comes from mucosa or both teeth and mucosal</p> Signup and view all the answers

What is a major connector?

<p>A device designed to connect major components.</p> Signup and view all the answers

What is the most important factor in a plaque control?

<p>A patient's ability to maintain acceptable plaque control is the single most important factor.</p> Signup and view all the answers

What type of brush is recommended in this text?

<p>TePe</p> Signup and view all the answers

How are arches classified?

<p>Kennedy classification.</p> Signup and view all the answers

According to Applegate's rules, what should also be included during classification?

<p>In all situations natural teeth should take precedence.</p> Signup and view all the answers

What is the suggestion the text gives for patients regarding alginate?

<p>High viscosity alignate should be used as this will help to compensate for any lack of fit of the stock tray</p> Signup and view all the answers

What is the reasoning the text gives for proper patient preparation?

<p>To ensure that any mistakes will not continue through the finished dentures</p> Signup and view all the answers

List at least 2 aspects to check a try-in with.

<p>Fit, position of teeth, extension and contouring, occlusion</p> Signup and view all the answers

What may lack occur in, in free end saddle cases?

<p>It is noted that there will be spacing in mesh retention DO NOT place wax here after the trial insertion stage of the framework.</p> Signup and view all the answers

When is something checked before any appointment?

<p>Design with framework</p> Signup and view all the answers

Describe a situation where a class 3 or 4 denture might be necessary.

<p>Large edentulous discrepancy</p> Signup and view all the answers

Name three aspects when assessing a try-in.

<p>Assessments may vary; patient comments, visual assessments, articulating paper.</p> Signup and view all the answers

According to the text what is the difference between bracing + reciprocation?

<p>Bracing and reciprocation will both provide similar support, bracing comes from clasp units and connectors, reciprocation comes from clasp arms.</p> Signup and view all the answers

According to Applegate and Kennedy what tooth composition is best?

<p>If possible maintain as much natural teeth to provide the most adequate support, Class V is the exception if the anterior teeth are damaged.</p> Signup and view all the answers

Describe a Class VI completely occlusal load.

<p>This type of class provides a completely tooth-borne meaning where a unilateral prosthesis can be achieved.</p> Signup and view all the answers

Flashcards

Jaw relationship registration

Records upper and lower arch relationship to facilitate teeth setup.

Removable Partial Denture (RPD)

A removable dental prosthesis that replaces some, but not all, of the natural teeth and/or associated structures.

Oral health before Co/Cr RPD

Stabilizing oral health is crucial before starting a Co/Cr RPD

Jaw relationship

Records the intended relationship between upper and lower arches in ICP.

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Space for implant abutments

The space for implant abutments must be created in the fitting surface to the denture baseplate.

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Primary impressions

Primary impressions captures initial details in edentulous arches or dentate arches.

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Secondary impressions

Secondary impressions uses custom trays for precise detail of oral structures.

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Occlusal rims

To record jaw relations in patients lacking sufficient teeth to mount casts.

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Secondary impression

Captures soft tissue and tooth anatomy to aid in design and fabrication of the prosthesis.

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Insertion path

Path of insertion/withdrawal: The direction prosthesis is placed/removed.

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Porcelain Veneers

A thin covering placed over a tooth to improve aesthetics or protect tooth surface.

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Tooth preparation (veneers)

Prepares teeth conservatively for veneer placement.

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Try-in

Used to test the fit, aesthetics, and function of the restoration before final cementation.

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Veneer Cementation

Uses resin-based cements for porcelain veneer placement.

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Ceramic crown

A restoration that covers all the clinical crown of a tooth.

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Evaluating metal Try-in

Ensuring correct path of insertion and absence of excessive undercuts affecting seating

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Check metal framework

Evaluate internal adaption, stability, and marginal fit of restoration.

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Acknowledgement

Guidance and instructions agreed upon by the BDS technical course lead.

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Purpose of Manual

Aims to give an overview of the clinical and technical stages of removable prostheses and indirect restorations.

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Clinical Visit 1

Initial assessment of the patient's dental condition and existing dentures.

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Special/Custom Trays

Custom trays with appropriate spacing for selected impression material.

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Recreate Spacing

Using greenstick compound to recreate spacing, border moulding, and canine stops.

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Impression Material

Use alginate, silicone, polyether or admix for impressions.

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Teeth Selection

Selection of tooth shade and mould for denture teeth.

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Lab teeth setup

Laboratory sets up teeth according to wax bite registration.

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Try-in Dentures

To make necessary adjustments and potentially re-register the bite.

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Denture Insertion

Provides instructions on oral hygiene and denture care to the patient.

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Review and Adjust

Final step to review and adjust the denture if necessary.

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Copy Denture Impressions

Copy patient's dentures in stock trays and silicon putty.

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Lab teeth in wax

Lab sets up teeth in wax based on denture replica.

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Final Denture

Final denture processed in lab after secondary impression.

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Stable Oral Health

Patient oral health must be stabilized before commencing procedure.

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Register Bite

First step: registering bite in ICP using wax or other registration material.

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Select Teeth Shade

Select tooth shade and mould by patient shade and mould to match occlusion and smile.

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Avoid Impregum

If interdental areas are large, do not use impregum for impression.

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Verify Metal Framework

Check the design, metal fit, and clasp positions, ensuring casting matches design.

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Not Enough teeth

For patients who lack numerous teeth in the upper and lower arch.

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Using wax rims

Use of wax rims to register horizontal and vertical relationship in RCP.

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Implant Identification

Implant type must be identified with appropriate healing caps inserted.

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Colored clasps used

Implants with ball attachments are retrofitted with yellow or red clasps to secure denture.

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Modify trays

Modifying a stock tray with green stick compound.

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Guiding restoration

Guide planes create a path of contact between the restoration and the prepared tooth

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Is facebow necessary?

Using face-bow is mandatory if you are preparing multiple anterior teeth

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Evaluating frameworks?

Removing the temporary crown, evaluating the fit of the metal framework of the crown

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Clinical Guidance

Guidance for removable and fixed prostheses.

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Patient assessment

History taking to assess the patient (including current dentures).

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Complete Denture

A denture that replaces all natural teeth in an arch.

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Casting of Impressions

Pour/cast upper, lower primary impressions

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Bite registration steps

Adjust upper wax rim, adjust lower wax rim, register horizontal and vertical jaw relationship.

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Acrylic conversion

Processes upper and lower dentures into heat cure acrylic.

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Copy Denture

A duplicate denture provides a spare, improving patient comfort and function.

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Denture Replica

Using the denture's replica to record incisal edge position.

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Tray spacer

To ensure adequate space for impression material, create custom trays with appropriate spacing.

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Co/Cr Framework

The metal framework of a removable partial denture made from cobalt chrome.

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Altered cast technique

Used in free-end saddle cases for accurate reproduction of the supporting tissues.

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Ball attachment overdenture

An overdenture that utilizes ball attachments to connect to implants in the mandible.

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Acrylic Partial Denture

Acrylic denture that replaces some but not all natural teeth.

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Metal Ceramic Crown

A fixed restoration where the metal substructure is veneered with porcelain.

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Resin Bonded Bridge

A fixed dental restoration that utilizes resin to bond to adjacent teeth.

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Overdenture

A denture that fits over remaining natural teeth or implants.

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Tooth reduction

Ensure the prepared teeth are prepared to the correct depth

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BDS standards

Instruction and recommendations agreed upon by the Board of Dental Surgery.

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Deviation from protocol

To improve outcome, variations might be needed with consultant approval.

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Lab processing

This involves placing final denture into acrylic.

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Denture insertion appointment

The final stage that provides care instructions.

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Overdenture definition

A removable dental prosthesis that covers and rests on one or more remaining natural teeth, roots and/or dental implants.

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Bite registration

Records bite to mount casts in ICP.

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Edentulous saddle

Using green stick or impression on free end saddles.

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Centric relation

Records relationship that determines proper occlusion.

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Metal try-in

Check path of seating, stability, interferences of occlusion. Re-record occlusion if needed.

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Framework processing

Laboratory process that places CoCr framework in acryllic.

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Clasp retention

Using color coded clasps is a technique for enhancing retention and stability.

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Try-in appointment

Check fit, occlusion, contours, and aesthetics to establish parameters before restoration.

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Checking casts

Creating a cast to verify occlusal registration.

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Special trays

Specialized and customed trays used for border molding.

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Facebow benefits

Using a face bow is important to accurately assess smile.

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Casting impressions

Is a process where you pour the impressions acquired.

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Communication matters

Special instructions needed for laboratory.

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Removable Prosthodontics

Replaces teeth and soft tissues with non-permanent removable prosthesis.

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Complete denture prosthetics

Replacing natural teeth with artificial substitutes to restore an edentulous mouth.

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Prosthodontics

Specialty focused on diagnosis, treatment planning, rehabilitation and maintenance of oral health.

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Denture Support

Resistance to vertical forces applied towards the denture-bearing area.

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Denture Retention

Resistance to vertical pulling force pulling the denture away.

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Denture Stability

Resistance to horizontal and oblique forces.

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Edentulousness

Patient has no remaining natural teeth.

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Aesthetic replacement

Replace multiple teeth, maintain arch integrity and aesthetics.

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Anatomical Knowledge

Uses knowledge of anatomy to design complete dentures.

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Assessing face features

Use facebow to maintain relationship and create a nice looking smile.

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Considering impression

Alters the design and material, to support flabby mobile tissue.

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Adequate denture support

Ensuring adequate support from denture bearing areas.

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Clinical stages

First visit: History, examination, primary impression.

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Understanding jaw relation

These recordings to be considered with dentures .

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Referal

Technique to consider if difficulty in satisfactory dentures

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Technique alteration

Use of a different impression material.

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Treatment plan

Altering the materials or methods to have improve dentures.

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Jaw registration

Records the jaw relation in the maxilla and mandible.

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Anterior guidance

Try to keep them, may not be possible.

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Lateral excursion

Try to retain this when dealing with dentures.

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Biometric principles

These principles help placement for lower teeth.

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Considerations of materials

Have a checklist and see if they are needed.

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Adjustment

The management of occurring problems of dentures

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Recall procedures

Understanding the recall process.

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Labsheet

Describe how to write a lab sheet.

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Denture aesthetics.

Understanding the principles of aesthetics .

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Occlusal registration

Important if patients cannot fit intercuspal

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Full discussion

After the full examination

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Clinical procedures

Used for complete dentures, immediate complete dentures, dentures.

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Removing the infection.

The removal of all the debris .

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Examination results

Making a record from what is seen before.

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Frenal attachments

These can affect the retention .

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Bony prominences

Need to see if there is sharp ridges.

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Partial Dentures

Prosthesis replaces some teeth in an arch.

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Copy Denture Technique

Duplication of well-fitting dentures.

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Surveying

Records the teeth/tissue supporting path insertion.

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Major Connector

Prosthesis connecting arch sides, ensuring rigidity.

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Minor Connector

Prosthesis component connecting other parts

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Direct Retainer

Component resists vertical dislodging forces.

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Indirect Retainer

Resists base movement away from ridge.

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Saddle

Denture unit covering residual ridges.

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Indication for RPD

Long span needs partial teeth.

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Diagnostic casts

Technique using a impression material

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Treatment Sequence

Survey tripod contour

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Compressibility

Record to assess mucosal features

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Avoid centric contact

Occlusion increase the OVD

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Historical Evaluation

History from patient including reason and details of complaint

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Patient Examination

Assess patient's biological and chronological age.

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Ideal ridge

Class I: Normal ridge height and width.

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Dentures stability achieved

Retentive force is greater than displacing forces.

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1st Clinical visit

History, Examination, and Primary impression

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2nd Laboratory stage

Pour master impression and construct wax blocks

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Ideal Denture

Is comfortable, has appropriate form, is stable and retentive

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Ridges Class V

Class V, is knife edge adequate height, inadequate width

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Ridges Class VI

Class VI shows basal bone loss

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Mucostatic impression

Denture can contact ridge in resting position

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Combination synd

The loss of bone from anterior ridge

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Functional impressions

Used if problems with stability

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Neutral zone

For complete denture will most stable where less tongue contact

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Immediate Denture

A complete or partial denture inserted immediately after extraction.

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Labial Flange include

Have greater stability and reduce risk of suture

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Labial Flange Disadvantage

Can create unnatural fullness and bony undercuts

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Alginate properties

The ideal properties of materials to be used in the cast

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Special Spacing Tray

Making a impression for edentulous area

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Study Notes

Conventional Complete Denture

  • Dentures should be decontaminated, washed, and dried before placing them in the patient's mouth.
  • Verify that the dentures are the correct ones.
  • Check for any sharp or rough areas and spicules, remove them before insertion.
  • It is preferable to begin with the upper denture.

Copy Denture

  • The technique uses light-bodied silicone in closed-mouth technique.
  • Bite registration is done using a thin film of silicone bite-registration paste.

Cobalt-chrome Removable Partial Denture (RPD)

  • For success of the process, follow the correct stages
  • An accurate impression should be obtained
  • Be aware of the patient's issues, occlusion, bite, stability
  • Design should consider saddle outline, support, direct and indirect retention, major and minor connectors, and simplification
  • Always prioritise the RPD first in treatment planning.
  • It ensures better hygiene.
  • Rests and clasps may be a concern
  • Conduct a thorough examination before each stage

Cobalt-chrome Removable Partial Denture (RPD) 2

  • This guidance needs to be followed for correct construction
  • All processes need to be well documented to ensure accuracy
  • Evaluate cast before inserting RPD, framework, clasps, rests, connectors and fit
  • Correct tooth contouring is recommended before using Co/Cr RPDs
  • Ensure there is clear communication between clinician and technician

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