Anterior crowns require a CHAMFER margin:
- 1.0-1.5 mm facial/labial reduction
- 1.0 mm deep chamfer margin
- .07-1.2 mm lingual reduction
Veneers require a CHAMFER margin
- 0.3-1.0mm facial/labial reduction
- 0.3-0.7 mm deep chamfer margin
Posterior crowns require a CHAMFER margin:
- 1.0-1.5 mm occlusal reduction
- 1.5 mm axial
- 1.0 mm deep chamfer margin