Introduction Introduction to to Fixed Fixed Prosthodontics Prosthodontics Dr. Feras Aalam
Jun 19, 2015
IntroductionIntroduction to to
Fixed ProsthodonticsFixed Prosthodontics
Dr. Feras Aalam
ProsthodonticsProsthodontics
The dental specialty concerned withThe dental specialty concerned with the making of the making of artificial replacements for missing parts of the artificial replacements for missing parts of the mouth and jaw. Also called prosthetic dentistry or mouth and jaw. Also called prosthetic dentistry or prosthodontia.prosthodontia.
Fixed prosthodontics is the specialized Fixed prosthodontics is the specialized area of dentistry involved in the area of dentistry involved in the replacement of missing teeth with a replacement of missing teeth with a cast prosthesis permanently cast prosthesis permanently cemented in place. cemented in place.
Indications for Fixed Indications for Fixed
ProsthodonticsProsthodontics One or two adjacent teeth are missing in One or two adjacent teeth are missing in
the same arch.the same arch. The supportive tissues are healthy.The supportive tissues are healthy. Suitable abutment teeth are present.Suitable abutment teeth are present. The patient is in good health and wants The patient is in good health and wants
to have the prosthesis placed.to have the prosthesis placed. The patient has the skills and motivation The patient has the skills and motivation
to maintain good oral hygiene.to maintain good oral hygiene.
Contraindications for Fixed Contraindications for Fixed ProsthodonticsProsthodontics
Necessary supportive tissues are Necessary supportive tissues are diseased or missing.diseased or missing.
Suitable abutment teeth are not present.Suitable abutment teeth are not present. The patient is in poor health. The patient is in poor health. The patient is not motivated to have the The patient is not motivated to have the
prosthesis placed.prosthesis placed. The patient has poor oral hygiene habits.The patient has poor oral hygiene habits. The patient cannot afford the treatment.The patient cannot afford the treatment.
Types of Cast RestorationsTypes of Cast Restorations
InlayInlay Indirect restoration Covers a portion of the Indirect restoration Covers a portion of the
occlusal and proximal surface. (dose not occlusal and proximal surface. (dose not cover the cusps)cover the cusps)
OnlayOnlay Indirect restoration Covers the proximal Indirect restoration Covers the proximal
surfaces and most or all of the occlusal surfaces and most or all of the occlusal surface. (covers the cusps) surface. (covers the cusps)
Porcelain VeneersPorcelain Veneers Thin shell-like covering placed to improve the Thin shell-like covering placed to improve the
appearance of anterior teeth.appearance of anterior teeth.
Full metal crownFull metal crown Completely covers the anatomic crown of Completely covers the anatomic crown of
an individual tooth.an individual tooth. Three‑quarter crown Three‑quarter crown
Covers the anatomic crown of a tooth Covers the anatomic crown of a tooth except for the facial portion.except for the facial portion.
Porcelain‑fused‑to‑metalPorcelain‑fused‑to‑metal crown crown (PFM)(PFM) Full metal crown with outer surfaces Full metal crown with outer surfaces
covered with a veneer of porcelain.covered with a veneer of porcelain.
Types of Cast RestorationsTypes of Cast Restorations cont’dcont’d
Types of Cast RestorationsTypes of Cast Restorations cont’dcont’d
Fixed bridgeFixed bridge A prosthesis for or more missing A prosthesis for or more missing
teeth within the same arch.teeth within the same arch.
Types of Cast RestorationsTypes of Cast Restorations cont’dcont’d
Types of Cast RestorationsTypes of Cast Restorations cont’dcont’d
Full ceramic crownFull ceramic crownCompletely covers the anatomic Completely covers the anatomic crown of an individual tooth.crown of an individual tooth.
Crown FabricationCrown Fabrication
1. Tooth Preparation, Including Build-Up1. Tooth Preparation, Including Build-Up 2. Impression2. Impression 3. Temporization3. Temporization 4. Model (Cast) and Die Fabrication4. Model (Cast) and Die Fabrication 5. Wax-Up5. Wax-Up 6. Investing and Casting6. Investing and Casting 7. Crown Adjusting and Polishing7. Crown Adjusting and Polishing 8. Clinical Try-In and Cementation8. Clinical Try-In and Cementation
RestorationsRestorations
Tooth PreparationsTooth Preparations
The tooth is prepared so the cast The tooth is prepared so the cast restoration can slide into place and restoration can slide into place and be able to withstand the forces of be able to withstand the forces of occlusion.occlusion.
Rotary instruments are used to reduce the Rotary instruments are used to reduce the height and contour of the tooth.height and contour of the tooth.
Hand cutting and rotary instruments Hand cutting and rotary instruments prepare the gingival margins.prepare the gingival margins.
Tooth PreparationTooth Preparation
Build-UpsBuild-Ups
Pin RetainedPin Retained
Preformed PostsPreformed Posts
Custom Cast Post and Custom Cast Post and CoreCore
Build-UpsBuild-Ups
Pin RetainedPin Retained
Build-UpsBuild-Ups
Preformed PostsPreformed Posts
Build-UpsBuild-Ups
Custom Cast Post Custom Cast Post and Coreand Core
ImpressionsImpressions
Cord temporarily displaces the Cord temporarily displaces the gingival tissue and widens the gingival tissue and widens the gingival sulcus so impression gingival sulcus so impression material can flow around all material can flow around all parts of the preparation. parts of the preparation.
NonimpregnatedNonimpregnated ImpregnatedImpregnated
Gingival Retraction and Tissue Gingival Retraction and Tissue ManagementManagement
Elastomeric impression Elastomeric impression materials are used to materials are used to create these extremely create these extremely accurate impressions.accurate impressions.
Final ImpressionFinal Impression
TemporariesTemporaries
Custom made acrylicCustom made acrylic Relined polycarbonate Relined polycarbonate
crownscrowns Preformed metal crownsPreformed metal crowns
TemporariesTemporaries
Custom made Custom made acrylicacrylic
TemporariesTemporaries
Relined polycarbonate Relined polycarbonate crownscrowns
TemporariesTemporaries
Preformed metal Preformed metal crownscrowns
Model (Cast) andModel (Cast) andDie FabricationDie Fabrication
SeriesSeries