Evaluation of wear resistance of dental resin composites with a 3D profilometer

Journal of Biomedical Materials Research. Part B, Applied Biomaterials
Hyun-Suk ChaHyeong-Cheol Yang

Abstract

The objectives of this study were to determine the wear resistance of dental resin composites, and to evaluate the influence of wear-simulating apparatus on wear. Nine commercial resin composites were studied. Wear was simulated with an oral wear simulator (Proto-Tech), which simultaneously incorporates the wear mechanism of attrition and abrasion in three-body wear mode, and with a pin-on-disk type friction tester (Rhesca, Japan). Composite specimens were subjected to 50,000 cycles of wear against a dental porcelain antagonist. After wear simulation, parameters for the determination of wear amount, such as wear volume, maximum wear depth, mean of maximum wear depth, and average wear depth were measured with the use of a 3D profilometer. For the oral wear simulator, the range of wear volume was 4.3-9.2 x 10(-2) mm3, and there were significant differences among the composites (p < 0.05). In other parameters, there were no significant differences among the composites. For the pin-on-disk tester, the range of mean of maximum wear depth was 7.5-26.3 microm, which was significantly different among the composites (p < 0.05). Correlation coefficient (r) between the wear volume from the oral wear simulator and the mean of maximum wear ...Continue Reading

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Citations

Oct 22, 2008·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Yong-Keun Lee, Yong-Kyu Lim
May 18, 2007·Dental Materials : Official Publication of the Academy of Dental Materials·Mohammad AtaiDavid C Watts
Jan 11, 2007·Dental Materials : Official Publication of the Academy of Dental Materials·Christian MehlMatthias Kern
Oct 4, 2005·The Journal of Prosthetic Dentistry·Yong-Keun LeeJohn M Powers
Dec 13, 2006·Operative Dentistry·Huan LuJohn M Powers
Dec 11, 2014·Clinical Oral Investigations·Dimitra LazaridouUlrich Lohbauer
Aug 15, 2009·Operative Dentistry·V JainG A Borges
Jan 16, 2009·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·K Alemzadeh, D Raabe

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