The preparation technique is important for the stability of the restoration as well as for the aesthetic result and accuracy.
Clear margins are a prerequisite for an accurate restoration.
Gingival margins can be prepared with a deep chamfer or a shoulder. Avoid feather edges and long bevels. Margins should be sharp, but all internal features, whether positive or negative, should be rounded. All rights reserved. Please take the 8-10 minutes required to complete the dental survey being conducted by Temple University Dental Informatics.