摘要
目的观察采用CEREC CAD/CAM系统制作的嵌体/高嵌体修复后牙缺损2年的临床效果。方法选择310位患者共计326颗后牙,采用CEREC椅旁CAD/CAM系统及CEREC瓷块椅旁设计、制作嵌体/高嵌体,以树脂水门汀粘接。修复后随访2年,统计留存率,记录失败表现并分析原因。结果 CEREC椅旁CAD/CAM嵌体/高嵌体修复两年成功率为96.0%,其中前磨牙成功率为97.3%,第一磨牙为96.4%,第二磨牙为94.6%,χ~2检验(α=0.05)不同牙位间2年成功率无统计学差异。分析失败原因,修复体折裂占31.0%,基牙折裂占23.1%,修复体松动、脱落及边缘微渗漏比例均为15.3%。结论 CEREC CAD/CAM技术制作的嵌体/高嵌体短期临床效果好,是修复后牙牙体缺损的有效方式。
Objective To observe the 2 years clinical performance of chairside CAD/CAM inlays/onlays made for repairing posterior teeth defects. Methods A total of 326 teeth from 310 patients were brought into investigation. The inlays/onlays were designed and manufactured by CEREC chairside CAD/CAM system, and then bonded with resin cement. After 2 years observation, the rate of success as well as failure patterns and reasons would be recorded and analyzed. Results The 2 years rate of success was 96.0%,and the rate of success of the first premolar and the first molar and the second molar was 97.3%, 96.4%, and 94.6% respectively. There was no significant difference between the rate of success by using statistics method χ~2 test（α=0.05）. Analysis of reasons for the failures, restoration fracture and abutment fracture accounted for 31.0%, 23.1%.Restoration loose, shedding and marginal leakage accounted for 15.3%.Conclusion Inlays/Onlays manufactured by CEREC CAD/CAM system have a good short-term clinical performance. It is an effective way to repair the defects of posterior teeth.
作者
李晶
李媛
谢金芳
耿文韬
李雪洋
魏周
张颖丽
LI Jing LI Yuan XIE Jinfang GENG Wentao LI Xueyang WEI Zhou ZHANG Yingli.(Stomatological Hospital of Jilin University, Changchun 130021)
出处
《现代口腔医学杂志》
CAS
2017年第5期262-264,297,共4页
Journal of Modern Stomatology
基金
吉林省技术监督局科研基金资助课题(DBXM152-2016)
关键词
椅旁CAD/CAM
牙体缺损
嵌体
高嵌体
clinical performance
chairside
CAD/CAM inlays/onlays made
repairing posterior
teeth defects
premolar
