1. Partial Veneer Crowns , Inlays and Onlays Dr shabeel pn

21. 6) Facial bevel: Using a fine, flame shaped diamond bur, develop a narrow bevel < 0.5mm on the labioincisal finish line at right angles to incisal two thirds of the facial surface. 7) Finishing the preparation Using a carbide finishing bur, round the angles to ensure continuity of all the finish lines

23. Features of anterior three quarter crown preparation

26. Advantages: Minimal tooth reduction Minimal subgingival margins, hence periodontally preferable Optimum access for margin finishing and hygiene Adequate retention Disadvantages: Less retentive than complete coverage Alignment can prove difficult Technically demanding Not usable on non vital teeth

27. Pin ledge preparation Three designs of pin ledge preparations have been describes: 1- Conventional Pin ledge involving only the lingual surface of the tooth 2 - Pin ledge with proximal slice 3 – Pin ledge with a proximal groove

32. Features of pinledge anterior three quarter crown