The Journal of the American Dental Association
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J Am Dent Assoc, Vol 118, No 3, 333-335.
© 1989 American Dental Association
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Journal of the American Dental Association, Vol 118, Issue 3, 333-335
Copyright © 1989 by American Dental Association

Journal Article

Effect of finishing on the in vivo wear rate of a posterior composite resin



K Ratanapridakul, KF Leinfelder, and J Thomas
Department of Pediatric Dentistry, University of Alabama, Birmingham 35294.

A problem with posterior composites is an unacceptable wear level. One factor contributing to inadequate wear resistance may be the way the restoration is surfaced or finished. A clinical study was carried out to determine the influence of finishing on the wear rate of a posterior composite resin. Except for the first 30 days, the resistance to wear was significantly higher for the unfinished group as compared to those that received a conventional finish. The average difference in wear between the two groups was nearly 40 microns.




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