e.Max Preparation for Full Coverage Anterior Crowns
Posted on 09/14/2011
e.Max is most often used for anterior cases - biscupid forward. With its natural translucency and strength (400 mPA in a pressed form), it really is among the best materials labs have for centrals, laterals and canines. The material is used most often for full coverage crowns, but it really works well for veneers and even thin veneers (0.3mm).
The preparation of the anterior full coverage crown is as follows*:
- 1.2mm incisal reduction
-1.2mm - 1.5mm facial reduction
- 1.2mm lingual contact clearance (Football shaped finishing bur used for lingual reduction)
- 1.0mm reduction at the gingival margin
- Shoulder Margin
- Rounded internal line angles
Pictures available at: http://www.ivoclarvivadent.us/empress/documents/all_ceramic_prep_guide.pdf
The preparation of the anterior full coverage crown is as follows*:
- 1.2mm incisal reduction
-1.2mm - 1.5mm facial reduction
- 1.2mm lingual contact clearance (Football shaped finishing bur used for lingual reduction)
- 1.0mm reduction at the gingival margin
- Shoulder Margin
- Rounded internal line angles
Pictures available at: http://www.ivoclarvivadent.us/empress/documents/all_ceramic_prep_guide.pdf
