Anti-fracture strength of teeth with wedge-shaped defects repaired with CEREC CAD/CAM ceramic inlay

杨彦春; 肖利; 周继祥

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Anti-fracture strength of teeth with wedge-shaped defects repaired with CEREC CAD/CAM ceramic inlay

更新时间：2026-01-09

- Anti-fracture strength of teeth with wedge-shaped defects repaired with CEREC CAD/CAM ceramic inlay
- Journal of Army Medical University Vol. 32, Issue 11, Pages: 1210-1212(2010)
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  CLC： R783.1;R783.3
- Published：2010
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杨彦春,肖利,周继祥.CEREC全瓷嵌体修复楔状缺损后牙体抗折强度的实验研究[J].陆军军医大学学报(原第三军医大学学报),2010,32(11):1210-1212.

　Yang Yanchun,Xiao Li,Zhou Jixiang.Anti-fracture strength of teeth with wedge-shaped defects repaired with CEREC CAD/CAM ceramic inlay[J].J Amry Med Univ (J Third Mil Med Univ),2010,32(11):1210-1212.
杨彦春,肖利,周继祥.CEREC全瓷嵌体修复楔状缺损后牙体抗折强度的实验研究[J].陆军军医大学学报(原第三军医大学学报),2010,32(11):1210-1212. DOI：

　Yang Yanchun,Xiao Li,Zhou Jixiang.Anti-fracture strength of teeth with wedge-shaped defects repaired with CEREC CAD/CAM ceramic inlay[J].J Amry Med Univ (J Third Mil Med Univ),2010,32(11):1210-1212. DOI：

摘要

目的研究应用CEREC全瓷嵌体对楔状缺损牙的修复效果并测试修复后抗折裂性能。方法将因正畸治疗拔除的离体牙分成对照组与实验组（n=16），分别制备成模拟楔状缺损牙。其中实验组用CEREC CAD/CAM全瓷嵌体修复；对照组用光固化树脂充填。然后在万能试验机上测试每组牙的抗折裂性能，并记录最大载荷。比较各实验组与对照组的抗折强度的差别。结果用CEREC全瓷嵌体修复的离体模拟楔状缺损牙（3.56±0.27）抗折强度明显高于对照组（2.43±0.15）（P＜0.01）。结论 CEREC全瓷嵌体可以有效修复楔状缺损牙，防止其受力折断。

Abstract

Objective To study the effect of CEREC CAD/CAM ceramic inlay on repair of wedge-shaped defects of teeth and test its anti-fracture properties. Methods Extracted teeth were divided into control group (n=16) and experimental group (n=16)

and prepared into imitating teeth with wedge-shaped defects. Teeth in experimental and control groups were repaired with CEREC CAD/CAM ceramic inlay and light-cured composite resin

respectively. Anti-fracture strength of teeth with wedge-shaped defects repaired with CEREC CAD/CAM was assayed on a universal testing device with its maximal loading recorded. The antifracture strength was compared between the 2 groups. Results The anti-fracture strength of teeth with wedge-shaped defects repaired with CEREC CAD/CAM ceramic inlay was significantly higher in experimental group than in control group (3.56±0.27 vs 2.43±0.15

P＜0.01). Conclusion CEREC CAD/CAM ceramic inlay can effectively repair wedge-shaped defects of teeth.

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