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Am J Dent. 1991 Oct;4(5):247-50.

Contributing co-variables in clinical trials.

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1
Department of Operative Dentistry, School of Dentistry, University of North Carolina, Chapel Hill 27599-7450.

Abstract

To accurately compare Class V dentinal bonding studies, it is essential to critically classify the effects of the intraoral location and age of the patient on the retention of resin composite restorations. A mathematical formula for normalization combined with the Weibull analysis also is proposed that could provide CL50 values for the clinical longevity of adhesive restorations.

PMID:
1810336
[Indexed for MEDLINE]
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