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Journal of Dental Research, Vol 63, 1245-1247, Copyright © 1984 by International & American Associations for Dental Research Online Journals

ARTICLES

Effects of backing reflectance and mold size on polymerization of photo-activated composite resin

P. L. Fan, C. M. Stanford, W. B. Stanford, R. Leung and J. W. Stanford

The in vitro depth of cure of a visible-light-activated microfilled composite, as influenced by backing reflectance and mold size, was investigated using microhardness measurements. More extensive polymerization was obtained with higher values of backing reflectance. Mold size larger than the cross-sectional area of the photo-activating beam also increased the degree of polymerization. Backing reflectance and mold size are influential factors and need to be defined in depth-of-cure evaluations if in vitro measurements are to be valid predictors of clinical performance.




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Journal of Dental Research ® Critical Reviews (1990-2004)
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