Journal of Dental Research, Vol 65, 1108-1111, Copyright © 1986 by International & American Associations for Dental Research Online Journals

ARTICLES

Standardizing evaluations of the clinical marginal fracture of amalgam

D. B. Mahler, J. H. Engle and R. W. Bryant

In this study, we investigated both inter-examiner and intra-examiner differences in the evaluation of the marginal fracture characteristics of dental amalgam restorations. Evaluations were made by matching intra-oral photographs of the occlusal surfaces of clinical restorations to a reference set of clinical photographs illustrating increasing amounts of marginal fracture. Four amalgam alloys and five examiners provided the data base. Differences in marginal fracture indices were found among examiners and between evaluation times for the same examiners. However, these differences were reduced significantly after application of a standardization procedure.

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