FRICTION AND WEAR BEHAVIOR OF SELECTED DENTAL CERAMICS

Jongee Park (), Gurel Pekkan and Abdullah Ozturk
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Jongee Park: Department of Materials Engineering, Atilim University, Ankara 06836, Turkey
Gurel Pekkan: Department of Dentistry, Dumlupinar University, Kutahya 43270, Turkey
Abdullah Ozturk: Department of Metallurgical and Materials Engineering, Middle East Technical University, Ankara 06531, Turkey

Surface Review and Letters (SRL), 2009, vol. 16, issue 05, 653-661

Abstract: The purpose of this study was to determine the friction coefficients and wear rates of six commercially available dental ceramics including IPS Empress 2 (E2), Cergo Pressable Ceramic (CPC), Cercon Ceram (CCS) and Super porcelain EX-3 (SPE). Bovine enamel (BE) was also tested as a reference material for comparison purposes. Samples of the dental ceramics were prepared according to the instructions described by the manufacturers in disk-shape with nominal dimensions of 12 mm × 2 mm. The wear tests were performed by means of a pin-on-disk type tribometer. The friction coefficients and specific wear rates of the materials were determined at a load of 10 N and rotating speed of 0.25 cm/s without lubrication. Surface morphology of the wear tracks was examined using a scanning electron microscope. Statistical analyses were made using one-way ANOVA and Turkey's HSD(P

Keywords: Friction; wear; tribology; dental ceramics (search for similar items in EconPapers)
Date: 2009
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DOI: 10.1142/S0218625X09013128

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