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Journal of Dental Research, Vol 70, 1299-1305, Copyright © 1991 by International & American Associations for Dental Research Online Journals

ARTICLES

The surface roughness of enamel-to-enamel contact areas compared with the intrinsic roughness of dental resin composites

G. Willems, P. Lambrechts, M. Braem, M. Vuylsteke-Wauters and G. Vanherle
Department of Operative Dentistry and Dental Materials, U.Z. St. Rafael, Leuven, Belgium.

The purpose of this study was to determine the surface roughness of enamel-to-enamel contact areas in order to provide a standard for comparison with surface characteristics of commercially available composite restorative materials. In addition, the inherent surface roughness of resin composites was evaluated profilometrically after a toothbrush abrasion procedure. A one-sided t-test analysis was performed to outline significant differences between the surface roughness value of enamel facets and that of the respective composite samples. A surface roughness of 0.64 +/- 0.25 micron (mean +/- S.D.) was found for the enamel-to-enamel contact areas.




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