Doctor Info

INLAY Reduce occlusal surfaces (A) by at least 1.5 - 2.0 mm Prepare cavity wall with slight divergence (B). Isthmus width at least 2.0 mm (C). Round all internal line and point angles and avoid internal undercuts. Keep cavosurface margins away from centric contact points.
ONLAY Reduce occlusal surfaces by at least 1.5 - 2.0 mm (A). Round all internal line and point angles and avoid internal undercuts (B). Keep cavosurface margins away from centric contact points (C).
LABIAL VENEER Color and Prep Depth Provide a shallow chamfer margin at the incisal-lingual (A), gingival (B), and proximal margins. The prep depth (C) should be 0.75 - 1.0 mm to provide space to block-out tooth color that is too dark or too light. If the stump shade (prep) matches the desired restoration color, then only 0.5 mm is adequate.
DIASTEMA CLOSURE. Increased proximal preparation (A) allows proper contour. Preparation (B) does not permit proper transitional contour after closure of diastema.
DRAW If the over-all mesio-distal dimension of the margins of your single unit or span is wider than your contacts, then recontour, smooth and polish the adjacent contacts before impressioning to assure the completed restoration has proper draw, proper contour, proper contacts, no food traps, and is easy to seat.