Experimental study of fracture loading test of cracked teeth with CEREC CAD/CAM ceramic inlays/onlays
- VernacularTitle:CEREC全瓷嵌体/高嵌体固定隐裂牙后抗折裂性能的实验研究
- Author:
Yanchun YANG
;
Li XIAO
;
Jixiang ZHOU
- Publication Type:Journal Article
- Keywords:
tooth crack;
CEREC;
ceramic inlays/onlays;
CAD/CAM;
crown
- From:Journal of Third Military Medical University
2002;0(12):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To test the fracture loading of extracted cracked teeth with CEREC CAD/CAM ceramic inlays/onlays. Methods All the extracted teeth were divided into two groups (A: control group; B: test group; n=15 teeth in each group). All the teeth were prepared into those imitating cracked teeth. Those teeth in group B were strengthened with CEREC CAD/CAM ceramic inlays/onlays. All teeth were thermocycled and mounted for testing and then were loaded until fracture. Results The force of anti-fracture of extracted teeth imitating cracked teeth with CEREC CAD/CAM ceramic inlays/onlays (group B) was obviously higher than that of the teeth without CEREC CAD/CAM ceramic inlays/onlays (group A). Conclusion CEREC CAD/CAM ceramic inlays/onlays can effectively prevent the crack of teeth in clinical practice.
