Wear and microhardness of different resin composite materials


Say E., Civelek A., Nobecourt A., Ersoy M., Guleryuz C.

OPERATIVE DENTISTRY, vol.28, no.5, pp.628-634, 2003 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 28 Issue: 5
  • Publication Date: 2003
  • Title of Journal : OPERATIVE DENTISTRY
  • Page Numbers: pp.628-634

Abstract

This study determined the three-body abrasive wear resistance of two packable composites (P-60; Solitaire 2), an ion-releasing composite (Ariston AT), a hybrid composite (Tetric Ceram) and an ormocer (Admira). The study also looked at the correlation between wear resistance and hardness of the composites. Three-body wear testing was performed using an ACTA wear machine with 15 N contact force using millet seed as the third body. Wear depth (mum) was measured by profilometry after 200,000 cycles. The hardness test was performed using a digital microhardness tester (load: 500 g, dwell time: 15 seconds). The data were analyzed by using Kruskal Wallis (p<0.05). There were statistically significant differences among the three body abrasive wear of the composites. The ranking from least to most were as follows: Filtek P-60 < Solitaire 2 < Ariston AT < Tetric Ceram < Admira. Filtek P-60 showed the highest microhardness value. No other significant differences in hardness were observed among the different resin composites (P-60 > AristonAT = Tetric Ceram = Solitaire 2 = Admira).