口腔疾病防治2017，Vol.25Issue(11)：723-728,6.DOI:10.12016/j.issn.2096-1456.2017.11.009
椅旁CAD/CAM系统修复失败的原因分析
Analysis of reasons for failure of chair-side CAD/CAM ceramic restorations
摘要
Abstract
Objective To investigate the failure reasons of all-ceramic restorations fabricated with chair-side CAD-CAM technology (CEREC(R)) and to improve the clinical survival of all-ceramic restorations. Methods All-ceramic single-tooth restorations of CEREC(R) in stomatology hospital of Jiangsu province between 2013 and 2016 were summarized. By clinical examination and CEREC Biogeneric surveying, the failure reasons and related restoration types were evaluated. These results were analyzed with Chi-square test and Spearman correlation analysis. Results A total of 61 cases with restoration types of 11 inlays, 38 onlays, 2 endocrowns, and 11 all-crowns, resulted in a failure rate of 5.4%in all-ceramic single-tooth restorations in 1-4 years follow-up. The reasons for failure included ceramic fracture (n=33), debonding (n=13), tooth fracture (n=15), which attributed to thin ceramic thickness (n=27), acute line angle (n=6), insufficient enam-el bulk (n=3), insufficient retention type (n=10), insufficient resistance type (n=15). Conclusion The most common reason for failure in CEREC(R) restorations was insufficient preparation space in occlusal surface.关键词
椅旁CAD/CAM/失败风险因素/全瓷修复/瓷块折裂/高嵌体Key words
Chair-side CAD/CAM/Risk of failure/All-ceramic restoration/Ceramic fracture/Onlay分类
医药卫生引用本文复制引用
马骏驰,李谨,曾晓燕,胡建..椅旁CAD/CAM系统修复失败的原因分析[J].口腔疾病防治,2017,25(11):723-728,6.基金项目
江苏高校优势学科建设工程资助项目(2014-37) （2014-37）
