Angela DDS .preparing ceramic veneer, finish preparation on the incisal edge or slightky above.?

I am worried masticatory forces directly on the veneer will dislodge it. I am DDS

Angela DDS .preparing ceramic veneer, finish preparation on the incisal edge or slightky above.?
I don't really understand the question but make sure to have a preparation design that adequately supports the veneer ceramic, eliminating areas of excessive thickness of veneer material. This, in turn, decreases the risk of the veneer ceramic fracturing.





Here is what I do for incisal preparation for anterior preparations:





1. Overlap of incisal edge is recommended. This helps to provide a positive seat for luting whilst involving more extensive tooth preparation. This style of preparation will also modify the path of insertion of the veneer which will have to be seated from the buccal/incisal direction rather than the buccal alone.


2. Lingual butt margin provides greatest strength as butt shoulder.


3. Unless clearance during lateral and protrusive movements has been checked, it is very easy to end up with a veneer which occludes satisfactorily in the intercuspal position, but which interferes during excursions.
Reply:I'm not sure what you mean by slightly above the incisal edge? Usually you reduce the incisal by at least 1.5 mm, then either finish in a butt joint or wrap around to the lingual, but it depends on the person's occlusion. a good resource for dental professionals for this type of question is www.dentaltown.com.