Anti-fracture strength of teeth with wedge-shaped defects repaired with CEREC CAD/CAM ceramic inlay
- VernacularTitle:CEREC全瓷嵌体修复楔状缺损后牙体抗折强度的实验研究
- Author:
Yanchun YANG
;
Li XIAO
;
Jixiang ZHOU
- Publication Type:Journal Article
- Keywords:
teeth with wedge-shaped defect;
CEREC;
ceramic inlay;
CAD/CAM
- From:Journal of Third Military Medical University
2003;0(11):-
- CountryChina
- Language:Chinese
-
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
