牙齿磨耗程度对Cerec光学印模咬合接触精确性影响的研究  

Effect of Tooth Abrasion Degree on Accuracy of Cerec Occlusion Contact

作　　者：江辉[1] 曾利伟[1] 邓璐[1] 焦纪兰[1] 詹爱平 李霄夏 JIANG Hui;ZENG Li-wei;DENG Lu;JIAO Ji-lan;ZHAN Ai-ping;LI Xiao-xia(Department of Rehabilitation,the Affiliated Stomatological Hospital of Nanchang University,The Key Laboratory of Oral Biomedicine,Nanchang 330006,Chin)

机构地区：[1]南昌大学附属口腔医院修复一科江西省口腔生物医学重点实验室,江西南昌330006

出　　处：《口腔医学研究》2018年第8期885-888,共4页Journal of Oral Science Research

基　　金：江西省南昌市对外科技合作与成果转化推广计划项目(编号:2013HZCG026)

摘　　要：目的:研究不同程度磨耗的牙齿对CEREC Omnicam椅旁系统光学印模咬合接触精确性的影响。方法:从2016年12月~2017年6月来南昌大学附属口腔医院就诊的患者中,按纳入标准选择患者牙列中的84颗下颌第一磨牙作为研究对象,其中轻度磨耗41颗,中度磨耗43颗;CEREC Omnicam椅旁系统进行口内光学印模获取咬合接触图像,Canon EOS 60D单反相机记录口内咬合印迹图像,计算CEREC Omnicam系统内图像与相机拍摄图像的咬合接触区域的重叠率,评价口内光学印模咬合接触的精确性,SPSS17.0软件对实验数据进行统计分析。结果:轻度磨耗组咬合接触区域的重叠率为(86.68±1.41),中度磨耗组的咬合接触区域的重叠率为(87.60±2.06),中度磨耗组的咬合接触区域重叠率较高,采用Wilcoxon秩和检验分析发现差异具有统计学意义(P<0.05)。结论:CEREC Omnicam椅旁系统对轻度、中度磨耗牙齿的口内光学印模咬合接触的精确性均较高,牙齿磨耗对口内光学印模的咬合接触精确性存在一定的影响。Objective： To study the effect of different abrasion degree on the accuracy of occlusal contact of optical impression made by CEREC Omnicam chair system. Methods： From December 2016 to June 2017 in patients who visited affiliated Stomatological Hospital of Nanchang University, 84 mandibular first molar teeth were selected as the research object according to the inclusion criteria, including 41 teeth at mild abrasion and 43 teeth at moderate abrasion. CEREC Omnicam chairside system was used to make intraoral optical impression of occlusal contacts. Canon EOS 60D SLR camera was used to record the mouth bite mark image. The overlap rate of the occlusal contact area was calculated and the accuracy of the occlusal contacts of the optical impression was evaluated. Results： The average overlap rates of occlusal contact area in mild abraion group and moderate abraion group were （86.68±1.41） and （87.60±2.06）, respectively （P〈0.05）. Conclusion： The accuracy of occlusal contact of intraoral optical impression of CEREC Omnicam chairside system was high for both mild and moderate wear teeth. Tooth wear has a certain influence on the accuracy of impression.

关 键 词：Cerec椅旁系统 咬合接触 磨耗 

分 类 号：R783[医药卫生—口腔医学]