Wear Behavior of Hard Dental Tissues and Restorative Materials

Abstract:

Human teeth are exposed to various chemical and mechanical factors. From mechanical point of view it includes attrition, abrasion or their combination. Teeth and dental restorative materials are subjected to normal and shear loads. Therefore the contact-based stresses during mastication and teeth wear are of considerable importance. In order to study wear behavior of enamel, dentine and two dental restorative composite materials scratch test at various contact conditions was employed. Hardness and elastic modulus were measured using nanoindentation with spherical and pyramidal indenters. Residual wear tracks were observed using laser scanning confocal microscopy.

• Periodical: Applied Mechanics and Materials (Volume 486)
• Pages: 72-77
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.486.72
• Online since: December 2013
• Authors: Radim Čtvrtlík*, Jan Tomaštík
• Keywords: Dental Composites, Dentin, Elastic Modulus, Hardness, Human Enamel, Wear

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