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Mark Kwon Replied at Tue, Nov 1, 2011 7:24 PM

Thanks for your post: This is an unusual case because I've never seen a zirconia abutment break like this before. Few questions: 1. I see that there's pontics adjacent to #21 implant; Is any of the pontics part of cantilever to #21 implant crown?? If it is so that would put extra force/loading on to the implant. 2. How's existing OJ/OB? any parafunctions? 3. Just want to make sure that the screw you are using is specific for zirconia abutment. Lab screw or screw for titanium/stock abutments will NOT work. Prosthetic screw for zirconia abutments are specifically designed for zirconia abutments only. You should definitely verify this fact as well. As far as dealing with this situation, my thoughts are the same as yours. ie. Custom abutment and crowns. If you are concerned, titanium custom abutment is an option. Please also note that Nobel will credit you back for abutment as well as for part of crown fee (as far as I know). - mark