摘要
目的建立计算机辅助牙颌模型三维CT扫描测量分析系统,并研究其可行性。方法采用高分辨率螺旋CT扫描石膏牙颌模型获得其断层图像,利用Visual C6.0编制在Windows环境下运行的分析软件,完成三维图形重建及测量,并采用该系统与手工方法对20副恒牙期模型进行测量,比较其结果。结果牙颌模型三维CT系统经检测精度合乎临床要求;且系统与手工方法测量20副恒牙期模型结果比较显示,两者间差异无显著性(P>0·05)。结论牙颌模型三维CT扫描测量分析系统是一套具有临床实用价值及推广意义的计算机辅助诊疗系统。
Objective To develop a computer assisted CT scanning system for 3D dental east measurement and to study its reliability. Methods 20 dental stone casts were scanned by helical CT and captured a series digital sliced radiographs of them. The program which was developed by Visual C 6.0 language and run under the Windows surroundings rebuilt the 3D graphics and measured the coordinate of the dental east. These dental casts were scanned and measured to test the reliability of the system, contrasting with manual measurement. Results There was no significant difference between 3D CT scanning and manual measurement（P 〉 0.05）. Conclusion The system is a valuable computer assisted system for clinical diagnosis and treatment of malocclusion.
出处
《华西口腔医学杂志》
CAS
CSCD
北大核心
2005年第4期329-331,共3页
West China Journal of Stomatology
基金
江苏省自然科学基金资助项目(BS99063)
关键词
牙颌模型
计算机体层摄影
三维测量
dental east
computed tomography
three-dimensional measurement
