一种适用于口腔三维建模的层析测量法的可靠性研究

华西口腔医学杂志

一种适用于口腔三维建模的层析测量法的可靠性研究

高　勃,王晓波,姚月玲,王少海,曹　健

第四军医大学口腔医院　修复科,陕西　西安710032

收稿日期:2005-12-25 修回日期:2005-12-25 出版日期:2005-12-20 发布日期:2005-12-20
通讯作者: 高　勃,Tel:029-83376467
作者简介:高　勃(1965-),男,山东人,副教授,博士
基金资助:
国家高技术研究发展计划资助项目(2002AA336050)

Reliability of an Improved Measurement System Used in Three-dimensional Reconstruction of Stomatognathic System by Cutting and Scanning Layer-by-layer

GAO Bo,WANG Xiao-bo,YAO Yue-ling,WANG Shao-hai,CAO Jian

Dept.of Prosthodontics,College ofStomatology,The Fourth MilitaryMedical University,Xi′an710032,China

Received:2005-12-25 Revised:2005-12-25 Online:2005-12-20 Published:2005-12-20

摘要/Abstract

摘要： 目的　应用改进的层析测量法进行无牙颌的三维建模,并对其建模精度进行分析研究。方法　采用改进的层析测量系统对无牙颌模型逐层切削,进行数据运算,重建无牙颌数字模型。用该方法对10个立方体模型分别重建数字模型,测量建模前后各条边长的数据,对测量结果进行统计分析。结果　对无牙颌模型逐层切削后获得完整无牙颌数字模型;10个立方体建模前后的总体误差间无显著性差异(P>0·05);在水平方向建模前后的测量数据间无显著性差异(P>0·05);在高度方向建模前后的测量数据间存在显著性差异(P<0·01),建模后的小于建模前(0·09±0·08)mm。结论　改进的层析测量法能够适用于口腔高精度的三维建模。

关键词: 三维建模, 无牙颌, 可靠性

Abstract: Objective　To reconstruct 3D shape of edentulous jaw by using improved measurement system and to analyze the precision of this method.Methods　Standard edentulous jawmodels were measured with a improved measurement system by cut- ting and scanning layer-by-layer, and the 3D shape of the models was reconstructed by image processing with specialty software. Ten cubic plaster modes were reconstructed by the same way, data of every border before and after reconstruction were measured and analyzed.Results　Data of edentulous jawmodelswere obtained. The errors in ten cubic before and after reconstructionwere not significantly different(P>0·05), data measured in horizontal plane were not significantly different(P>0·05), and data measured in altitude directionwere significantly different(P<0·01), data measured after reconstructionwere less than before ,the error was (0·09±0·08) mm.Conclusion　The improved cutting and scanning measurement system can be fit for the 3D recon- struction of stomatognathic system with high precision.

Key words: three-dimensional reconstruction, edentulous jaw, reliability

高勃;王晓波;姚月玲;王少海;曹健. 一种适用于口腔三维建模的层析测量法的可靠性研究[J]. 华西口腔医学杂志.

GAO Bo,WANG Xiao-bo,YAO Yue-ling,WANG Shao-hai,CAO Jian. Reliability of an Improved Measurement System Used in Three-dimensional Reconstruction of Stomatognathic System by Cutting and Scanning Layer-by-layer[J]. West China Journal of Stomatology.

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