| ORIGINAL ARTICLE |
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| Year : 2021 | Volume
: 5
| Issue : 2 | Page : 166-169 |
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Evaluation of contact-wear behavior of lithium disilicate glass ceramic materials; In vitro study
Efe Çetin Yilmaz1, Recep Sadeler2
1 Department of Control Systems Electrical and Electronic Engineering, Faculty of Engineering and Architecture, Kilis 7 Aralık University, Kilis, Turkey
2 Department of Mechanical Engineering, Ataturk University, Faculty of Engineering, Erzurum, Turkey
Correspondence Address:
Efe Çetin Yilmaz
Department of Control Systems Electrical and Electronic Engineering, Faculty of Engineering and Architecture, Kilis 7 Aralık University, Kilis
Turkey
 Source of Support: None, Conflict of Interest: None
DOI: 10.4103/bbrj.bbrj_37_21
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Background: The purpose of this work is to evaluation of contact-wear behavior of lithium disilicate glass ceramic materials under in vitro chewing tests. Methods: Eight specimens of each ceramic materials were exposed contact-wear tests using a computer-controlled chewing simulator (1.2 Hz 50 N bite force loads, 120.000 mechanical cycles, constantly 37 °C temperature immersed in distill water. Al2O3 balls of 6 mm in diameter were used for each chewing test. The mean volume loss of all ceramic specimens after the contact-wear tests was determined with use 3D profilometer. In addition to a random specimen was selected from each test group and scanning electron microscopy (SEM) images were taken for analysis of wear tracks. Results: As a result, the ceramic materials tested in this study showed similar wear behaviors after 120.000 chewing tests. Conclusions: However, it was observed that more particles were carried on the wear surface and occurred micro cracks of the IPS e.max ceramic material. These micro cracks can be the continuation of cracks that occur subsurface of ceramic material.
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