Dental materials and instruments required in final impression making for complete denture.
1. custom tray
2. mixing pad
3. rubber impression material
4. modeling compound stick
5. torch
6. cold water
7. spatulas
8. petroleum jelly
9. straight low speed handpiece
10. carbide acrylic trimming burs
Dental materials and instruments required in fabricating custom impression tray for complete denture.
1. visible light polymerizing acrylic resin wafer (VLC wafer).
2. pink wax
3. wax knife
4. separating fluid
5. small brush
6. straight low speed handpiece
7. carbide acrylic trimming burs
8. scalpel
Dental materials and instruments required for complete denture preliminary impression procedure using impression compound.
1. metal stock tray
2. thermoplastic impression compound
3. warm water (approximately 40 C
4. ice water
5. plaster cast scissor
Classification of Alveolar Ridge Defect
Class I – Horizontal
- labiolingual defect with normal ridge height
Class II – Vertical
- coronolabial defect with normal ridge width
Class III – Combination
- horizontal and vertical ridge defect
Mucostatic are impressions that record the tissues with minimum displacement.
Mucodisplacive are impressions that displace the tissues.
The choice is made by the dentist on the basis of oral conditions, concept of the function of the tissues surrounding the denture and ability to handle the available impression materials.
Indications for a Complete Denture Treatment
1. Lack of financial resources for alternative treatments.
2. Patient refused partial dentures.
3. Edentulous patient.
4. Gross decay or abscesses.
5. Lack of motivation or ability to maintain teeth.
6. Extensive bone loss and periodontal disease.
Treatment Plan for the provision of Complete Dentures
1. Treatment of urgent conditions
a. Relief of pain
b. Swelling
c. Bleeding etc
2. Explanation to the patient
3. Treatment of systemic diseases
4. Treatment of the mucosa / stress bearing areas
a. tissue conditioning
5. Denture construction.
a. Clinical procedure
b. Laboratory procedure
Tooth Preparation Metal-Ceramic Dental Crown Restoration
1. Incisal/occlusal reduction guide grooves using tapered round tipped diamond bur. Clearance should be 1.5 to 2 mm in intercuspal positions and all excursions.
2. Incisal/occlusal reduction with tapered round tipped diamond bur.
3. Labial reduction guide grooves (two plane/bi-planar) using tapered round tipped idamond bur. Clearance should be 1.2 to 1.5 mm.
4. Labial reduction (two plane) using tapered flat tipped diamond bur.
5. Axial reduction using tapered round tipped diamond bur.
6. Lingual reduction using football shaped diamond. It should provide 1 mm clearance in all excursions. Greater or equal 1.5 mm if occlusal is porcelain.
7. Finishing of shoulder with tapered flat tipped diamond. Shoulder must extend at least 1 mm lingual to proximal contact area; bevel, if selected, should be at as far as incisal as possible relative to epithelial attachment.
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