MSCT及牙颌专用软件在颌骨种植区线距测量的准确性评价  

The accuracy of linear measurements of jaw implant regions obtained by multi-slice spiral CT and dental software

作　　者：郭凌云[1] 郭华艳[1] 张蕾[1] 黄远亮[1] 

机构地区：[1]上海市东方医院口腔科,上海200120

出　　处：《上海口腔医学》2011年第6期631-634,共4页Shanghai Journal of Stomatology

基　　金：上海市浦东新区科学技术委员会基金项目(PKJ2008-Y17)

摘　　要：目的：评价经标记模板定位后颌骨种植区多层螺旋CT（MSCT）测量的准确性。方法：选择20名志愿者佩戴标记模板,经MSCT扫描后,应用牙颌专用测量软件测量上、下颌前牙唇舌侧龈缘中点间的距离,采用SPSS17.0软件包与游标卡尺手工测量的唇舌距进行配对t检验。结果：各牙位唇、舌侧龈缘中点间距离CT测量值与游标卡尺测量值的差值范围为-0.04~0.21mm,无统计学差异（P〉0.05）。结论：经标记模板定位后,颌骨种植区高分辨率CT测量距离与实测距离具有良好的一致性,该方法为活体颌骨种植区精确测量提供了一种可靠的途径。PURPOSE：To evaluate the measurement accuracy by multi-slice spiral CT（MSCT） and dental software as a tool for preoperative design before tooth implantations.METHODS： Twenty volunteers with marker template underwent MSCT.The diameter of the front teeth crowns in the bucco-lingual direction were measured by MSCT using a standard dental software package.Postoperatively,the same distances were clinically measured using a sliding caliper.The consistency between the two measurements was analyzed by paired t test using SPSS17.0 software package.RESULTS： The difference of measurements was-0.04-0.21mm.There was no significant difference between the CT and the manual measurement of the crown diameter in the bucco-lingual direction（P0.05）.CONCLUSIONS： The results demonstrate that MSCT and marker template promises to be a valuable method for the measurement of jaw implant regions.Supported by Grant of Science and Technology Council of Pudong New Area（PKJ2008-Y17）.

关 键 词：CT 牙种植 测量 准确性分析 

分 类 号：R783[医药卫生—口腔医学]