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Volume 20 , Issue 5
September/October 2007

Pages 465468

Comparison of 3 Polishing Techniques for 2 All-Ceramic Materials

Duygu Sarac, DDS, PhD / Tamer Turk, DDS, PhD / Selma Elekdag-Turk, BSc, DDS, PhD / Y. Sinasi Sarac, DDS, PhD

PMID: 17944333

The aim of this study was to compare the surface roughness produced by polishing 2 all-ceramic materials after surface conditioning. Air particle abrasion (APA) with 25-m aluminum oxide, 9.6% hydrofluoric acid (HFA,) and APA + HFA were applied for ceramic surface conditioning. Subsequently, the ceramics were subjected to 3 polishing techniques: polishing kit, polishing paste, and polishing kit + polishing paste. Surface roughness (Ra) was evaluated profilometrically. The highest DRa values were obtained with the polishing kit and polishing kit + paste for the APA + HFA groups. No significant differences were observed among the polishing paste groups. Combining a polishing kit and polishing paste produced the smoothest ceramic surfaces. Int J Prosthodont 2007; 20:465468.

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