Comparison of wear resistance of three kinds of glass ceramics and wieland zenostar zircon
10.13481/j.1671-587x.20190116
- Author:
Yuanyuan ZHOU
1
Author Information
1. Department of Endodontic, Jilin University, Stomatology Hospital
- Publication Type:Journal Article
- Keywords:
Friction and wear;
Glass ceramic;
Wear depth;
Zirconia
- From:
Journal of Jilin University(Medicine Edition)
2019;45(1):83-87
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To explore the differences of wear resistance of three kinds of glass ceramics and Wieland Zenostar zircona (Zenostar). and to clarify their influencing factors. Methods: Zenostar were made into flat-shaped specimens (zirconia base sample group) and hemisphere-shaped specimens (zirconia pair grinding group). There kinds of glass ceramics IPS Empress (Empress). IPS e. max CAD (e. max). VITA Suprinity (Suprinty) were used as base specimens. Each group was exposed to UMT-2 testing machine to simulate the clinical service. The wear depthes of base specimens were detected by laser confocal scanning. Scanning electron microscope (SEND was used to evaluate the wear surfaces. Results: In zirconia base sample group, there were no significant differences in the maximum wear depthes to Zenostar between the three kinds of glass ceramics ( P>0. 05). In zirconia pair grinding group, the maximum wear depthes ranked as follows: Zenostar group0. 05). but there were significant differences between other groups ( P
