Podcast
Questions and Answers
What is the definition of 'impression' in dentistry?
What is the definition of 'impression' in dentistry?
- An imprint of the teeth and adjacent structures
- A negative likeness or copy in reverse of the surface of an object (correct)
- A positive likeness or copy of the surface of an object
- A digital scan of the oral cavity
Which type of impression is used for making a replica of the teeth and adjacent structures in dentistry?
Which type of impression is used for making a replica of the teeth and adjacent structures in dentistry?
- Final impression (correct)
- Secondary impression
- Preliminary impression
- Primary impression
What is the purpose of a secondary impression in dentistry?
What is the purpose of a secondary impression in dentistry?
- To create a preliminary model for diagnostic purposes
- To assess the fit and accuracy of the primary impression
- To record any remaining natural teeth and surrounding tissues (correct)
- To capture initial anatomical landmarks
Which part of the mouth is involved in the 'impression taking for complete dentures'?
Which part of the mouth is involved in the 'impression taking for complete dentures'?
What is the purpose of retaining satisfactory impressions and discarding inadequate ones in dentistry?
What is the purpose of retaining satisfactory impressions and discarding inadequate ones in dentistry?
Which type of impression is used to produce an initial replica of the oral tissues in dentistry?
Which type of impression is used to produce an initial replica of the oral tissues in dentistry?
In dentistry, what does the term 'anatomical landmarks' primarily refer to?
In dentistry, what does the term 'anatomical landmarks' primarily refer to?
Which type of impression is used to evaluate the fit and accuracy of the primary impression in dentistry?
Which type of impression is used to evaluate the fit and accuracy of the primary impression in dentistry?
What is the primary stress bearing area for the maxilla in relation to dentures?
What is the primary stress bearing area for the maxilla in relation to dentures?
What is the secondary stress bearing area for the mandible in relation to dentures?
What is the secondary stress bearing area for the mandible in relation to dentures?
What are preliminary impressions made for in the context of dentures?
What are preliminary impressions made for in the context of dentures?
Which type of impression material is considered elastic?
Which type of impression material is considered elastic?
What are the clinical considerations and precautions associated with impression materials?
What are the clinical considerations and precautions associated with impression materials?
What is the purpose of capturing important anatomical landmarks in the context of dentures?
What is the purpose of capturing important anatomical landmarks in the context of dentures?
What is the focus of impression making procedures in relation to dentures?
What is the focus of impression making procedures in relation to dentures?
What is the purpose of preliminary impression trays in dentistry?
What is the purpose of preliminary impression trays in dentistry?
Which type of impression material is considered rigid?
Which type of impression material is considered rigid?
What is the primary focus when selecting preliminary impression trays for complete dentures?
What is the primary focus when selecting preliminary impression trays for complete dentures?
What is the recommended pouring procedure for preliminary impressions in dentistry?
What is the recommended pouring procedure for preliminary impressions in dentistry?
What are the clinical principles associated with impression making in dentistry?
What are the clinical principles associated with impression making in dentistry?
Which type of material is used to make denture impression compounds?
Which type of material is used to make denture impression compounds?
What should be the distance of maxillary trays for dentures beyond the vibrating line?
What should be the distance of maxillary trays for dentures beyond the vibrating line?
During border molding, how is the denture material added to the tray?
During border molding, how is the denture material added to the tray?
What is involved in the maxillary arch border molding process?
What is involved in the maxillary arch border molding process?
What type of impressions are used to make complete dentures?
What type of impressions are used to make complete dentures?
What are flabby ridges caused by in denture making?
What are flabby ridges caused by in denture making?
When is the altered cast impression technique commonly used?
When is the altered cast impression technique commonly used?
"Reprosil PVS material" is used to overcome the disadvantages of which original wax technique?
"Reprosil PVS material" is used to overcome the disadvantages of which original wax technique?
What is a Fellow of the American College of Prosthodontists?
What is a Fellow of the American College of Prosthodontists?
What are some of the lecture objectives mentioned at the end of the text?
What are some of the lecture objectives mentioned at the end of the text?
Flashcards
Impression (Dentistry)
Impression (Dentistry)
A negative likeness or copy in reverse of the surface of an object.
Final Impression
Final Impression
Used for making a replica of the teeth and adjacent structures.
Secondary Impression
Secondary Impression
Records remaining natural teeth and surrounding tissues.
Impression Site (Complete Dentures)
Impression Site (Complete Dentures)
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Impression Quality
Impression Quality
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Primary Impression
Primary Impression
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Anatomical Landmarks (Dentistry)
Anatomical Landmarks (Dentistry)
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Secondary Impression
Secondary Impression
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Maxilla Stress Bearing Areas
Maxilla Stress Bearing Areas
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Mandible Stress Bearing Areas
Mandible Stress Bearing Areas
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Purpose of Preliminary Impressions
Purpose of Preliminary Impressions
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Elastic Impression Material
Elastic Impression Material
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Impression Material Considerations
Impression Material Considerations
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Purpose of Capturing Landmarks
Purpose of Capturing Landmarks
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Focus of Impression Procedures
Focus of Impression Procedures
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Preliminary Impression Trays
Preliminary Impression Trays
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Rigid Impression Material
Rigid Impression Material
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Primary Focus (Impression Trays)
Primary Focus (Impression Trays)
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Pouring Technique
Pouring Technique
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Clinical Principles (Impressions)
Clinical Principles (Impressions)
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Denture Impression Compounds
Denture Impression Compounds
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Maxillary Tray Distance
Maxillary Tray Distance
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Border Molding
Border Molding
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Maxillary Arch Border Molding
Maxillary Arch Border Molding
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Impression Type (Complete Dentures)
Impression Type (Complete Dentures)
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Cause of Flabby Ridges
Cause of Flabby Ridges
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Altered Cast Impression Technique
Altered Cast Impression Technique
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Wax Technique
Wax Technique
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Fellow of the American College of Prosthodontists
Fellow of the American College of Prosthodontists
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Lecture Objectives
Lecture Objectives
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Study Notes
- Anna Yi is a dental professional with degrees in Dentistry, Prosthodontics, and Maxillofacial Prosthetics, and she is a Fellow of the American College of Prosthodontists.
- Denture impression compounds are thermoplastic materials softened in hot water or over a flame. They should not be overheated.
- Maxillary trays for dentures should be 4mm beyond the vibrating line.
- During border molding, denture material is added to the tray in sections and adequately softened before being shaped to the proper contour.
- border molding is done by making jaw and border movements to activate certain muscles and determine the thickness of the denture flange.
- Maxillary arch border molding involves moving the lip down for the labial frenum, the cheek back and forth for the buccal frenum, and the tongue forward to capture the lingual flange.
- Complete dentures are made using single stage impressions, which record the teeth and soft tissues in their anatomic form.
- Flabby ridges, caused by excessive bone loss, are a challenge in denture making and may require special techniques.
- Altered cast impression is a technique used to make a negative likeness of the denture bearing area after the initial tooth impression has been taken. It is commonly used for mandibular distal extension ridges.
- The Applegate fluid wax impression technique is used in mandibular distal extension ridges when using the altered cast impression method.
- Making an altered cast impression is a time-consuming process, and it is important to handle the wax carefully to avoid distortion. Reprosil PVS material can be used to overcome the disadvantages of the original wax technique.
- The lecture objectives include understanding the important anatomical landmarks to capture with the impression, selecting appropriate materials, mastering impression making principles, and producing accurate results.
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