Experimental study of fracture loading test of cracked teeth with CEREC CAD/CAM ceramic inlays/onlays

杨彦春; 肖利; 周继祥

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Experimental study of fracture loading test of cracked teeth with CEREC CAD/CAM ceramic inlays/onlays

更新时间：2026-01-09

- Experimental study of fracture loading test of cracked teeth with CEREC CAD/CAM ceramic inlays/onlays
- Journal of Army Medical University Vol. 31, Issue 12, Pages: 1217-1218(2009)
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  CLC： R783.1;R783.4
- Published：2009
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杨彦春,肖利,周继祥.CEREC全瓷嵌体/高嵌体固定隐裂牙后抗折裂性能的实验研究[J].陆军军医大学学报(原第三军医大学学报),2009,31(12):1217-1218.

　YANG Yan-chun,XIAO Li,ZHOU Ji-xiang.Experimental study of fracture loading test of cracked teeth with CEREC CAD/CAM ceramic inlays/onlays[J].J Amry Med Univ (J Third Mil Med Univ),2009,31(12):1217-1218.
杨彦春,肖利,周继祥.CEREC全瓷嵌体/高嵌体固定隐裂牙后抗折裂性能的实验研究[J].陆军军医大学学报(原第三军医大学学报),2009,31(12):1217-1218. DOI：

　YANG Yan-chun,XIAO Li,ZHOU Ji-xiang.Experimental study of fracture loading test of cracked teeth with CEREC CAD/CAM ceramic inlays/onlays[J].J Amry Med Univ (J Third Mil Med Univ),2009,31(12):1217-1218. DOI：

摘要

目的研究CEREC全瓷嵌体/高嵌体对隐裂牙的固定效果并测试抗折裂性能。方法将测试的离体牙分成A、B 2组

A组为对照组

B组为实验组

每组各15个

分别制备成模拟隐裂牙;其中B组用CEREC全瓷嵌体/高嵌体固定

A组用光固化树脂充填

然后在万能测试机上垂直加载直至折裂进行抗折裂性能测试。结果用CEREC全瓷嵌体/高嵌体固定的离体模拟隐裂牙抗折强度高于对照组牙齿。结论 CEREC全瓷嵌体/高嵌体可以有效固定隐裂牙。

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.

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