FRICTION AND WEAR BEHAVIOR OF SELECTED DENTAL CERAMICS


PARK J., PEKKAN G., ÖZTÜRK A.

SURFACE REVIEW AND LETTERS, cilt.16, ss.653-661, 2009 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 16 Konu: 5
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1142/s0218625x09013128
  • Dergi Adı: SURFACE REVIEW AND LETTERS
  • Sayfa Sayıları: ss.653-661

Özet

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 x 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 < 0.05).