Deterioration of mechanical properties of composite resins

Dental Materials Journal
H ArikawaK Inoue

Abstract

The deterioration of the mechanical properties of composite resins was examined. The bending strength and the stress relaxation rate for sixteen experimental composite resins with different filler shapes, particle sizes and filler contents immersed in distilled water for 0-60 days were measured. The bending strength of all of the composites decreased with the increase of the immersion time in water. The composites with a high filler content (65 vol%) showed a greater decreasing ratio of bending strength than those with low filler content (40 vol%). The stress relaxation rate also increased with and increase of immersion time. The phenomena may be caused by the hydrolytic degradation of the silane coupling agent (gamma-MPTMS).

Citations

Jun 7, 2005·Dental Materials : Official Publication of the Academy of Dental Materials·W M PalinR C Randall
Jul 13, 2014·Dental Materials : Official Publication of the Academy of Dental Materials·Danijela MarovicGottfried Schmalz
May 10, 2001·Critical Reviews in Oral Biology and Medicine : an Official Publication of the American Association of Oral Biologists·J P SanterreB W Leung
Apr 7, 2007·Dental Materials Journal·Hiroyuki ArikawaSeiji Ban
May 19, 2020·Dental Materials Journal·Yasushi HibinoHiroshi Nakajima
Oct 30, 2007·Dental Materials : Official Publication of the Academy of Dental Materials·Tomotaro NiheiKarl-Heinz Kunzelmann

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