Podcast
Questions and Answers
What defines the non-working side of the mandible during lateral movements?
What defines the non-working side of the mandible during lateral movements?
- Teeth on this side make contact with other teeth.
- It is the side that performs the majority of the work.
- It is the side that moves towards the midline. (correct)
- Teeth on this side experience increased load during movement.
Which occlusal scheme involves anterior teeth protecting posterior teeth during lateral movements?
Which occlusal scheme involves anterior teeth protecting posterior teeth during lateral movements?
- Unilateral Balanced Occlusion
- Canine Guidance (correct)
- Group Function
- Bilateral Balanced Occlusion
In Bilateral Balanced Occlusion, what occurs during centric occlusion?
In Bilateral Balanced Occlusion, what occurs during centric occlusion?
- There are simultaneous contacts on both sides with no interferences. (correct)
- Teeth on the non-working side remain disconnected at all times.
- Only the working side teeth make contact.
- There is a focus on load distribution exclusively on the anterior teeth.
What disadvantage is associated with Unilateral Balanced Occlusion?
What disadvantage is associated with Unilateral Balanced Occlusion?
What is a primary characteristic of Mutually Protected Occlusion?
What is a primary characteristic of Mutually Protected Occlusion?
What advantage does tooth setup offer over BBO?
What advantage does tooth setup offer over BBO?
What does lingualized occlusion primarily eliminate?
What does lingualized occlusion primarily eliminate?
What phenomenon occurs during protrusive movement in natural dentition?
What phenomenon occurs during protrusive movement in natural dentition?
What is the primary purpose of the denture try-in appointment?
What is the primary purpose of the denture try-in appointment?
What should be checked first during the try-in appointment?
What should be checked first during the try-in appointment?
Which aspect of tooth setup helps in achieving bilateral balanced occlusion?
Which aspect of tooth setup helps in achieving bilateral balanced occlusion?
Why is modifying the denture during the try-in appointment necessary?
Why is modifying the denture during the try-in appointment necessary?
What results from improper remounting of models in a denture try-in?
What results from improper remounting of models in a denture try-in?
What should be done if the try-in is not fully acceptable to the patient?
What should be done if the try-in is not fully acceptable to the patient?
Which of the following is NOT recommended before the try-in appointment?
Which of the following is NOT recommended before the try-in appointment?
What is the primary purpose of the try-in appointment?
What is the primary purpose of the try-in appointment?
During the try-in, how should the retention of the denture be regarded?
During the try-in, how should the retention of the denture be regarded?
What aspect of the maxillary anterior teeth should align with the lower lip for optimal esthetics?
What aspect of the maxillary anterior teeth should align with the lower lip for optimal esthetics?
How long can a try-in last based on the assessment of various factors?
How long can a try-in last based on the assessment of various factors?
Which of the following factors should be checked during the intra-oral try-in?
Which of the following factors should be checked during the intra-oral try-in?
What should the patient be informed of about the wax try-ins?
What should the patient be informed of about the wax try-ins?
What should be done if both denture bases are found to be unstable during assessment?
What should be done if both denture bases are found to be unstable during assessment?
What is the purpose of carving the posterior palatal seal (PPS) into the master model?
What is the purpose of carving the posterior palatal seal (PPS) into the master model?
If a major discrepancy is discovered during the try-in appointment, what action is necessary?
If a major discrepancy is discovered during the try-in appointment, what action is necessary?
Which factor is NOT considered when selecting the denture base shade?
Which factor is NOT considered when selecting the denture base shade?
What needs to be clarified if the posterior palatal seal was not defined in the definitive impression?
What needs to be clarified if the posterior palatal seal was not defined in the definitive impression?
When teeth are interfering during the bite recording, what should be done first?
When teeth are interfering during the bite recording, what should be done first?
Which shade category is NOT included in common denture base shade selections?
Which shade category is NOT included in common denture base shade selections?
What should be done if the heels of the denture bases are contacting?
What should be done if the heels of the denture bases are contacting?
What is the primary role of complete denture occlusion?
What is the primary role of complete denture occlusion?
What defines maximum intercuspation?
What defines maximum intercuspation?
Which movement does protrusion refer to?
Which movement does protrusion refer to?
What is meant by laterotrusion?
What is meant by laterotrusion?
Which best describes centric relation?
Which best describes centric relation?
How does occlusion differ from articulation?
How does occlusion differ from articulation?
What is the role of the working side during lateral movements?
What is the role of the working side during lateral movements?
Which occlusal scheme emphasizes stability during function?
Which occlusal scheme emphasizes stability during function?
What is the purpose of asking a patient to count from 50 to 55 during a speaking assessment?
What is the purpose of asking a patient to count from 50 to 55 during a speaking assessment?
What does a significant change in Freeway Space (FWS) indicate?
What does a significant change in Freeway Space (FWS) indicate?
What should be assessed when the patient produces the 's' sound during a speaking assessment?
What should be assessed when the patient produces the 's' sound during a speaking assessment?
When assessing Vertical Dimension of Occlusion (OVD), what must be ensured?
When assessing Vertical Dimension of Occlusion (OVD), what must be ensured?
What does it indicate if the upper and lower teeth are either both excessively visible with sibilants?
What does it indicate if the upper and lower teeth are either both excessively visible with sibilants?
What should be avoided when instructing the patient during the occlusion assessment?
What should be avoided when instructing the patient during the occlusion assessment?
What is a likely consequence if OVD is too low during assessment?
What is a likely consequence if OVD is too low during assessment?
What does the closest speaking space refer to?
What does the closest speaking space refer to?
Flashcards
Maximum Intercuspation
Maximum Intercuspation
The position where the upper and lower teeth fit together most tightly, often called the 'habitual bite'. It's independent of the jaw's position.
Centric Relation
Centric Relation
The position of the jaw where the condyles (the ends of the jaw bone) are in their most forward and upward position within the joint sockets (glenoid fossa). It's independent of tooth contact.
Occlusion
Occlusion
The relationship between the upper and lower teeth when they are touching, a still picture.
Articulation
Articulation
Signup and view all the flashcards
Protrusion
Protrusion
Signup and view all the flashcards
Laterotrusion
Laterotrusion
Signup and view all the flashcards
Working Side
Working Side
Signup and view all the flashcards
Non-Working Side
Non-Working Side
Signup and view all the flashcards
Non-Working Side (Balancing Side)
Non-Working Side (Balancing Side)
Signup and view all the flashcards
Mutually Protected Occlusion
Mutually Protected Occlusion
Signup and view all the flashcards
Unilateral Balanced Occlusion (Group Function)
Unilateral Balanced Occlusion (Group Function)
Signup and view all the flashcards
Bilateral Balanced Occlusion
Bilateral Balanced Occlusion
Signup and view all the flashcards
Smooth Occlusion
Smooth Occlusion
Signup and view all the flashcards
Conventional Denture Setup
Conventional Denture Setup
Signup and view all the flashcards
Lingualized Occlusion
Lingualized Occlusion
Signup and view all the flashcards
Christensen's Phenomenon
Christensen's Phenomenon
Signup and view all the flashcards
Denture Try-in Appointment
Denture Try-in Appointment
Signup and view all the flashcards
Teeth Color and Mold
Teeth Color and Mold
Signup and view all the flashcards
Articulator Mounting Accuracy
Articulator Mounting Accuracy
Signup and view all the flashcards
Denture Teeth Placement
Denture Teeth Placement
Signup and view all the flashcards
Speaking Assessment for Occlusion
Speaking Assessment for Occlusion
Signup and view all the flashcards
Freeway Space (FWS)
Freeway Space (FWS)
Signup and view all the flashcards
Closest Speaking Space
Closest Speaking Space
Signup and view all the flashcards
Vertical Dimension of Occlusion (OVD)
Vertical Dimension of Occlusion (OVD)
Signup and view all the flashcards
Sibilant Sound
Sibilant Sound
Signup and view all the flashcards
Fricative Sound
Fricative Sound
Signup and view all the flashcards
Effects of Incorrect OVD on Speech
Effects of Incorrect OVD on Speech
Signup and view all the flashcards
Centric Relation (CR)
Centric Relation (CR)
Signup and view all the flashcards
Denture try-in
Denture try-in
Signup and view all the flashcards
Midline assessment
Midline assessment
Signup and view all the flashcards
Occlusal plane
Occlusal plane
Signup and view all the flashcards
Potential outcomes of a denture try-in
Potential outcomes of a denture try-in
Signup and view all the flashcards
Explaining the try-in to the patient
Explaining the try-in to the patient
Signup and view all the flashcards
Patient Support and Validation
Patient Support and Validation
Signup and view all the flashcards
Intra-oral try-in assessment
Intra-oral try-in assessment
Signup and view all the flashcards
Aesthetic considerations for anterior teeth
Aesthetic considerations for anterior teeth
Signup and view all the flashcards
Unstable Denture Base
Unstable Denture Base
Signup and view all the flashcards
Single Base Stabilization
Single Base Stabilization
Signup and view all the flashcards
Double Base Stabilization
Double Base Stabilization
Signup and view all the flashcards
Clinical Remount
Clinical Remount
Signup and view all the flashcards
Posterior Palatal Seal (PPS)
Posterior Palatal Seal (PPS)
Signup and view all the flashcards
Polymerization Shrinkage
Polymerization Shrinkage
Signup and view all the flashcards
Denture Base Shade Selection
Denture Base Shade Selection
Signup and view all the flashcards
Denture Base Shade Categories
Denture Base Shade Categories
Signup and view all the flashcards
Study Notes
Denture Occlusal Schemes and Try-in Appointment
- The lecture covers complete denture occlusal schemes, including natural occlusion, balanced occlusion, unbalanced occlusion, and the wax try-in appointment.
- Natural occlusion, balanced occlusion, and unbalanced occlusion are different schemes used in natural teeth to distribute forces efficiently during chewing and prevent damage to teeth.
- Complete denture schemes aim for similar advantages, such as maintaining stability, improving chewing efficiency, preserving residual ridges, and improving patient comfort.
- Balanced occlusion limits tipping during functional movements, maximizing stability. This includes bilateral balanced, lingualized, and monoplane occlusion.
- Monoplane occlusion is characterized by flat, non-anatomic teeth without cusp inclines to eliminate horizontal forces and minimize lateral interferences. The scheme eliminates nonaxial forces on the denture.
- Lingualized occlusion features maxillary lingual cusps contacting mandibular occlusal surfaces. It maximizes stability and esthetics.
- Bilateral balanced occlusion involves simultaneous, evenly distributed contacts between upper and lower teeth on both working and non-working sides, ideal for complete dentures to enhance stability and prevent dislodgement.
- The try-in appointment verifies fit, function, esthetics, and phonetics. It helps to adapt or modify the denture.
Important Terms
- Maximum Intercuspation: The position where opposing teeth fit together in their most stable and tightest contact. Often referred to as the habitual bite or centric occlusion. This doesn't depend on condylar position.
- Centric Relation: A maxillomandibular relationship where the condyles are positioned in their most superior, anterior position within the glenoid fossa, resting against the thinnest, avascular portion of the articular disc. This position is repeatable and not dependent on tooth contact.
- Occlusion vs Articulation: Occlusion is the static relationship between maxillary and mandibular teeth when they are in contact. Articulation is the dynamic relationship during mandibular movements like lateral or protrusive.
- Protrusion: A mandibular movement where the lower jaw moves forward from centric relation or maximum intercuspation.
- Laterotrusion: A lateral movement of the mandible toward one side (working side) during mandibular function like chewing.
- Working Side: The side of the mandible that moves away from the midline during laterotrusion, with teeth often making contact.
- Non-Working Side (Balancing Side): The side of the mandible that moves towards the midline during laterotrusion, with minimal or no tooth contact.
Occlusal Schemes in Natural Teeth
- Mutually Protected Occlusion: Anterior teeth protect posterior teeth during excursive movements (lateral and protrusive) and posterior teeth protect anterior during centric occlusion.
- Unilateral Balanced Occlusion: Multiple teeth on the working side share the load during lateral movement, the non-working side has no contact.
- Bilateral Balanced Occlusion: Simultaneous, evenly distributed contacts occur between upper and lower teeth during all mandibular movements.
Christensen's Phenomena
- Christensen's phenomenon describes the separation of posterior teeth in both maxilla and mandible when the mandible moves into a forward (protrusive) position due to the downward and forward movement of the mandibular condyles.
Dentist Procedures and patient assessment
- The try-in appointment gives the first opportunity for dentist and patient to see the denture and decide whether to accept, modify or change.
- Check teeth color, mold, and best position during try-in.
- Assess alignment and any small improvements for patient.
- Check for tongue and lip support and adjustments.
- The try-in appointment has three possible conclusions: satisfaction, need for modification, or difficulty to satisfy both patient/dentist.
- The order of priority for information evaluation is fit, function, esthetics, and phonetics.
- Assess the wax-up for relaxed jaw posture, protrusive posturing, tooth characterization, gingival color, any other concerns, spouse/others satisfaction, and complete the details with other important oral evaluations, such as VDO.
- If both patient/dentist are satisfied, the denture can be processed. If not, posterior palatal seal must be considered for definitive impression when needed.
- Carving the posterior palatal seal can help compensate polymerization shrinkage, preserve peripheral seal, and blend into the mucosal contour.
- If the lower denture is not stable, single base stabilization should be used. If both denture bases are not stable, use double base stabilization.
- A clinical remount is needed if there's a major discrepancy, and teeth causing interference may need removal before bite recording. The bite can be recorded at the same or increased OVD.
- Consider the patient's age, ethnicity, complexion, and gingival pigmentation to determine the proper shade. Common shades include light pink, medium pink, dark pink, and pigmented shades.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Test your knowledge on dental occlusion concepts and terminology. This quiz covers various occlusal schemes, their advantages, disadvantages, and critical characteristics. Perfect for dental students and professionals looking to refresh their understanding.
