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Wednesday, January 31, 2001

Operative Dentistry MCQ Answer 16

Posted by Vishaal at 1/31/2001 10:14:00 AM Wednesday, January 31, 2001
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The Correct Answer is D

Veneers can be made of composite; lab processed composite, porcelain or pressed ceramics. The gingival margin should be supraginigival unless the defect, discoloration, or caries extends below the gingival margin. An acceptable design involves the incisal edge that can extend to the lingual surface. This is useful to lengthen the tooth and cover stain or defects on the incisal edge. The incisal lapping preparation is not contraindicated with porcelain and may be used in most situations. There is a potential increase in wear of the opposing dentition with the incisal edge lapping design. A veneer preparation does not have to include the incisal edge.

Roberson T.M., Heymann H.O., and Swift E.J. Studervant’s Art & Science of Operative Dentistry, Fourth Edition, Mosby Inc. 615-618.




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