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Questions and Answers
What is the polished surface of a complete denture?
What is the polished surface of a complete denture?
What does the occlusal surface of a denture refer to?
What does the occlusal surface of a denture refer to?
Which statements correctly describe the role of the polished surface in denture fabrication?
Which statements correctly describe the role of the polished surface in denture fabrication?
Which of the following surfaces is primarily concerned with fitting the denture to oral anatomical features?
Which of the following surfaces is primarily concerned with fitting the denture to oral anatomical features?
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Which aspect is least likely associated with the polished surface of a complete denture?
Which aspect is least likely associated with the polished surface of a complete denture?
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What shape do the lingual and buccal borders of the mandibular denture typically take?
What shape do the lingual and buccal borders of the mandibular denture typically take?
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Which of the following best explains the design of concave borders in a mandibular denture?
Which of the following best explains the design of concave borders in a mandibular denture?
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In designing a mandibular denture, why is the concavity of the borders important?
In designing a mandibular denture, why is the concavity of the borders important?
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Which statement best describes the advantage of concave borders in a mandibular denture?
Which statement best describes the advantage of concave borders in a mandibular denture?
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What is a common misconception about the design of the mandibular denture borders?
What is a common misconception about the design of the mandibular denture borders?
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Study Notes
Prosthodontics - Sheet #11
- Wax Up of Complete Denture: Today's lecture focuses on the wax-up procedure for complete dentures.
- Wax Up Procedure: Includes primary and secondary impressions, jaw relation, try-in, denture insertion, and associated laboratory steps (tray construction, flasking, packing, curing, processing).
- Wax Up Definition: Contouring wax patterns or wax bases of trial dentures to the desired shape.
- Festooning: Carving the denture base to mimic the natural tissues surrounding the artificial teeth.
- Important Denture Surfaces: Impression surface (basal), polished surface (outer surface contacting oral tissues), occlusal surface (recorded by bite registrations).
- Purpose of Wax-Up: To shape the polished surface of the denture to achieve proper form with the cheek, lip, and tongue, accurate impressions of the tissue (denture border), and accurate buccolingual position of teeth.
- Importance of Polished Surface Form: Influences denture retention, stability, aesthetics (simulates natural anatomy), and prevents lip and cheek biting.
- Significant Borders: Art portion (mimicking surrounding tissue), and anatomical portion (width of original impression).
- Upper and Lower Denture Shaping Criteria: Shaping contours are buccal full, palate and lingual surface is concave to accommodate tongue.
- Mandibular Denture Concavity: Lingual and buccal borders are concave to match tongue and cheek movements, avoiding convexity that could dislodge the denture.
- Mandibular Denture Vertical Surface: Vertical or concave shape in the premolar region to prevent interference with the modiolus (facial muscle connection).
- Maxillary Denture Design: Gentle concave contour of the denture base along the palatal surface from canine to first molar. The rest of the palatal surface is waxed uniformly at 2.5 mm to minimize resorption.
- Waxing for Teeth and Gingiva: The gingival margins and interdental papillae are waxed to a natural form.
- Waxing Procedures and Tips (Lab): Adding waxing materials, waxing contours, appropriate surface shaping for correct contact with teeth to achieve adequate aesthetic form, polishing to ensure a smooth, even surface.
- Palatal Seal: Important for stability and prevents food from getting caught.
- Importance and Considerations: Procedure must focus on the reason for doing each step: retention, avoidance of discomfort, proper fit and aesthetics.
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Description
This quiz explores the wax-up procedure for complete dentures, covering key steps from impressions to denture insertion. Understand the significance of each stage in shaping the denture for optimal fit and aesthetics. Test your knowledge on festooning, important denture surfaces, and the purpose of wax-up in prosthodontics.
