Introduction to fixed(new)
- 1. Introduction to Fixed Prosthodontics Dr. Feras Aalam
- 2. Prosthodontics The dental specialty concerned with the making of artificial replacements for missing parts of the mouth and jaw. Also called prosthetic dentistry or prosthodontia. Fixed prosthodontics is the specialized area of dentistry involved in the replacement of missing teeth with a cast prosthesis permanently cemented in place.
- 3. Indications for Fixed Prosthodontics One or two adjacent teeth are missing in the same arch. The supportive tissues are healthy. Suitable abutment teeth are present. The patient is in good health and wants to have the prosthesis placed. The patient has the skills and motivation to maintain good oral hygiene.
- 4. Contraindications for Fixed Prosthodontics Necessary supportive tissues are diseased or missing. Suitable abutment teeth are not present. The patient is in poor health. The patient is not motivated to have the prosthesis placed. The patient has poor oral hygiene habits. The patient cannot afford the treatment.
- 5. Types of Cast Restorations Inlay Indirect restoration Covers a portion of the occlusal and proximal surface. (dose not cover the cusps) Onlay Indirect restoration Covers the proximal surfaces and most or all of the occlusal surface. (covers the cusps) Porcelain Veneers Thin shell-like covering placed to improve the appearance of anterior teeth.
- 6. Full metal crown Completely covers the anatomic crown of an individual tooth. Three‑quarter crown Covers the anatomic crown of a tooth except for the facial portion. Porcelain‑fused‑to‑metal crown (PFM) Full metal crown with outer surfaces covered with a veneer of porcelain. Types of Cast Restorations cont’d
- 7. Fixed bridge A prosthesis for or more missing teeth within the same arch. Types of Cast Restorations cont’d Full ceramic crown Completely covers the anatomic crown of an individual tooth.
- 8. Crown Fabrication 1. Tooth Preparation, Including Build-Up 2. Impression 3. Temporization 4. Model (Cast) and Die Fabrication 5. Wax-Up 6. Investing and Casting 7. Crown Adjusting and Polishing 8. Clinical Try-In and Cementation
- 9. Restorations
- 18. The tooth is prepared so the cast restoration can slide into place and be able to withstand the forces of occlusion. Rotary instruments are used to reduce the height and contour of the tooth. Hand cutting and rotary instruments prepare the gingival margins. Tooth Preparation
- 27. Build-Ups Pin Retained Preformed Posts Custom Cast Post and Core
- 37. Build-Ups Custom Cast Post and Core
- 43. Impressions
- 44. Cord temporarily displaces the gingival tissue and widens the gingival sulcus so impression material can flow around all parts of the preparation. Nonimpregnated Impregnated Gingival Retraction and Tissue Management
- 46. Elastomeric impression materials are used to create these extremely accurate impressions. Final Impression
- 50. Temporaries Custom made acrylic Relined polycarbonate crowns Preformed metal crowns
- 51. Temporaries Custom made acrylic
- 55. Temporaries Relined polycarbonate crowns
- 58. Temporaries Preformed metal crowns
- 61. Model (Cast) and Die Fabrication
- 65. Series
- 78. Thank you