PRINCIPLES OF TOOTH PREPARATION IN FIXED PROSTHODONTICS 

Principles of Crown Preparation in Fixed Dental Prosthesis or FPD. Preservation of tooth structure, Retention and Resistance, Structural durability, Marginal integrity and preservation of Periodontium. Factors influencing retention and resistance - Taper, Freedom of displacement, Height of preparation, subsitution of Internal features and Path of insertion. Features ensuring Structural durability - occlusal reduction, Functional cusp bevel, Axial reduction and Reinforcing struts.