Tensile fatigue strength of light cure composite resins for posterior teeth

Dental Materials Journal
M Yamamoto, H Takahashi

Abstract

The fatigue property of the composite resin has recently been a subject of research. In this study, the fatigue strength and the tensile strength of composite resins stored in water were investigated. Two types of light cure composite resins were used: a Hybrid type and am MFR type. Dumbbell-shaped specimens were prepared. After storage at 37 +/- 0.5 degrees C for 24 hours, 1 month, 3 months, 6 months and 12 months, the fatigue test and the direct tensile test were performed. The staircase method was employed to analyze the fatigue strength under a 10(5) cyclic load. The fatigue strength of the Hybrid type at 24h ours was 54.7 MPa; that of the MFR type was 28.1 MPa. Both fatigue strengths decreased during water storage. Otherwise, the tensile strength of the Hybrid type was 77.0 MPa; that of the MFR type was 53.5 MPa. After 12 months of storage, the tensile strength of the Hybrid type remained unchanged during water storage; however, that of the MFR type decreased.

Citations

Nov 1, 2008·Dental Materials Journal·Simone GrandiniMarco Ferrari
Apr 16, 2010·Dental Materials : Official Publication of the Academy of Dental Materials·Hesam MirmohammadiAlbert J Feilzer
Sep 29, 2004·Biomaterials·J De MunckB Van Meerbeek
Feb 1, 2005·Dental Materials : Official Publication of the Academy of Dental Materials·Simone GrandiniMarco Ferrari
Apr 4, 2006·Journal of Dentistry·José Maurício dos Santos Nunes ReisAna Lucia Machado
Nov 22, 2011·Journal of the Mechanical Behavior of Biomedical Materials·Shu-Fen ChuangTerry Yuan-Fang Chen
Oct 18, 2001·Critical Reviews in Oral Biology and Medicine : an Official Publication of the American Association of Oral Biologists·G BaranJ McCool
Jul 21, 2004·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Keiichi YoshidaMitsuru Atsuta
Jun 28, 2012·Journal of Dental Research·T TakanoK Sakurai
Jul 26, 2005·British Dental Journal·J J M RoetersN J M Opdam
Oct 6, 2005·European Journal of Oral Sciences·W M M FennisN H J Creugers
Jan 22, 2008·Dental Materials Journal·Jamshid Aghadazeh MohandesiFarhad Shafiei
Jan 18, 2006·Dental Materials : Official Publication of the Academy of Dental Materials·Sufyan GaroushiPekka K Vallittu

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