The Journal of the American Dental Association
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J Am Dent Assoc, Vol 116, No 7, 867-870.
© 1988 American Dental Association
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Journal of the American Dental Association, Vol 116, Issue 7, 867-870
Copyright © 1988 by American Dental Association

Journal Article

Relationship between proximal cavity design and recurrent caries



PF Otto and JT Rule
Department of Pediatric Dentistry, Baltimore College of Dental Surgery, University of Maryland.

A total of 375 Class II restorations were divided into short, intermediate, and long groups according to occlusal-gingival length and its relationship to the contact area of adjacent teeth as determined radiographically. Recurrent caries at the gingival margin was studied during a 2-year period. Restorations with gingival margins ending occlusal to the contact area had a significantly higher rate of caries at all time intervals. Results suggested, in part, that the additional length of the restoration is not as critical as clearing the contact area.




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