PROVISIONAL RESTORATION IN FIXED PROSTHODONTICS

Provisional or Temporary restoration in Fixed Dental Prosthesis (FPD). Biological, mechanical and esthetic requirements. Classification of provisional restorations. Different types resin materials used - PMMA, Poly ethyl methacrylate, Bis acryl composite and VLC urethane dimethacrylate. Techniques of fabrication- Direct, Indirect and Direct - indirect technique. Prefabricated provisional - polycarbonate crowns, cellulose acetate crowns, Aluminum and Tin- silver crown and Nickel chromium prefabricated anatomical crown. Limitations of provisional restorations.