锥形束CT数字化牙颌测量与石膏模型测量的对比研究

›› 2015, Vol. 35 ›› Issue (10): 834-837.

锥形束CT数字化牙颌测量与石膏模型测量的对比研究

王珊¹,韩越¹,张卫兵¹,王林²

1. 南京医科大学附属口腔医院
2. 江苏省口腔医院

收稿日期:2015-02-10 修回日期:2015-02-27 出版日期:2015-10-28 发布日期:2015-10-27
通讯作者: 王珊 E-mail:jessica1722@tom.com
基金资助:
江苏省临床医学专项;江苏高校优势学科建设工程资助项目

Comparison between CBCT and plaster models in measuring dental arches

Received:2015-02-10 Revised:2015-02-27 Online:2015-10-28 Published:2015-10-27
Contact: Shan Wang E-mail:jessica1722@tom.com

摘要/Abstract

摘要： 目的　确定利用锥形束容积体层成像技术（conebeam computed tomography,CBCT）数字化牙颌测量得到的数据与石膏模型测量数据是否具有一致性。方法　对110例患者的CBCT重建影像进行牙颌测量，和石膏模型测量进行配对研究。使用Mimics软件重建并测量由NewTom VGi锥束CT扫描仪所形成的三维影像，同时制取超硬石膏模型。由测量人员分别进行拥挤量、拥挤度、前牙覆牙合覆盖、Bolton指数、上下颌尖牙间宽度、前磨牙间宽度、磨牙间宽度等数据进行测量，用Wilcoxon非参数检验对比分析测量结果。结果　拥挤度、前牙覆牙合覆盖、前牙Bolton指数、第一前磨牙间宽度、第一磨牙间宽度两者测量结果无显著性差异；拥挤量、上下颌尖牙间宽度、全牙Bolton比两者测量结果有显著性差异，但拥挤量、上下颌尖牙间宽度两者均值差异均小于1 mm，全牙Bolton比差值小于1%。结论　CBCT数字化牙颌测量和石膏模型在大部分测量值上具有一致性，有可能在未来替代传统石膏模型测量简化临床操作。

关键词: 锥体束CT, 数字化牙颌测量, 石膏模型

Abstract: Objective To compare cone-beam computed tomography (CBCT) and dental plaster model (DPM) in the measurement of the dental arches. Methods The dental arches of the 110 patients were scanned with the CBCT and their DPMs were also obtained. Two experienced examiners took eight arch measurements on the CBCT images and DPMs. And coupled arch measurements of these two clinical detection methods were compared separately by the Wilcoxon signed-rank test. Results No significant difference between DPM and CBCT were found in five arch measurements (P>0.01). Although there were statistical difference between DPM and CBCT in space analysis, total dental Bolton analysis and width between canine (P<0.01), the exactly mean differences of these three arch measurements were respectively less than 1 mm. Conclusion CBCT provided the same accuracy as DPM in the measurement of the dental arches.

Key words: Cone-beam computed tomography, dental plaster model, arch measurements

中图分类号:

R783.5

王珊韩越张卫兵王林. 锥形束CT数字化牙颌测量与石膏模型测量的对比研究[J]. , 2015, 35(10): 834-837.

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