A 5-year study comparing a posterior composite resin and an amalgam
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R D Norman1, J S Wright, R J Rydberg
1Department of Restorative Dentistry, Southern Illinois University, School of Dental Medicine, Alton.
The Journal of Prosthetic Dentistry
|November 1, 1990
Abstract:
Eighty class I and class II light-cured posterior composite resin restorations were compared with 43 class I and class II amalgam restorations during a 5-year period after placement. The results of this clinical study showed that both materials were satisfactory during the time period and that the only significant statistical differences are a poorer marginal integrity for the amalgam and a greater wear rate for the composite resin.