title: Comparison of 3 polishing techniques for 2 all-ceramic materials.
abstract: 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-microm 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 deltaRa 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.
authors.affiliation: Department of Prosthodontics, Faculty of Dentistry, University of Ondokuz Mayis, Samsun, Turkey. dsarac@omu.edu.tr
authors.forename: Duygu
authors.initials: D
authors.lastname: Saraç
authors.forename: Tamer
authors.initials: T
authors.lastname: Turk
authors.forename: Selma
authors.initials: S
authors.lastname: Elekdag-Turk
authors.forename: Y Sinaç
authors.initials: YS
authors.lastname: Saraç
mesh_terms: D000538:Aluminum Silicates; D003775:Dental Polishing / Q000379:methods*; D003776:Dental Porcelain; D017680:Potassium Compounds; D011897:Random Allocation; D013499:Surface Properties
chemical_list: D000538:Aluminum Silicates; D017680:Potassium Compounds; C493120:lithia disilicate; D003776:Dental Porcelain; C016447:feldspar