全口牙列口内扫描的精确性与可重复性分析

上海口腔医学 ›› 2016, Vol. 25 ›› Issue (5): 593-599.

全口牙列口内扫描的精确性与可重复性分析

谢轶伦, 沈刚

上海交通大学医学院附属第九人民医院·口腔医学院口腔正畸科,上海市口腔医学重点实验室,上海 200011

收稿日期:2016-03-04 修回日期:2016-04-11 出版日期:2016-10-25 发布日期:2016-11-10
通讯作者: 沈刚, E-mail：gangshen@orthosh.com
作者简介:谢轶伦（1990-）,女,在读硕士研究生,E-mail：rayxyl26@163.com

Accuracy and reproducibility of intraoral scanning in vivo

XIE Yi-lun, SHEN Gang

Department of Orthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; Shanghai Key Laboratory of Stomatology. Shanghai 200011, China

Received:2016-03-04 Revised:2016-04-11 Online:2016-10-25 Published:2016-11-10

摘要/Abstract

摘要： 目的通过比较全口牙列传统石膏模型和数字化模型的线性测量数据,评估口腔扫描系统的精确性与可重复性。方法由5位志愿者构成传统模型组（对照组）与口内扫描组（实验组）。对志愿者进行传统硅橡胶取模、石膏灌制后,采用Trios Ortho口内扫描仪（3 Shape公司）对志愿者分别于8点、13点、18点进行全口牙列口内扫描,为期15 d。采用电子游标卡尺测量石膏模型,Simplant软件测量口内扫描图像。由经过专业培训的测试者分别于上午8点、13点、18点进行测量,重复15 d。采用SAS 11.0软件包中的配对t检验进行实验组与对照组组间数据的精确性比较,可重复性研究则为在实验组组间进行单因素方差分析。结果精确性研究中,志愿者1的参数23L有显著差异（P<0.01）,5位志愿者的其他所有参数均无显著差异（P>0.05）。可重复性研究中,5位志愿者各参数之间均无显著差异（P>0.05）。结论全口口内直接数字化扫描的精确性与可重复性较高。

关键词: 口内扫描, 数字化模型, 精确性, 可重复性

Abstract: PURPOSE: To evaluate the accuracy and reproducibility of intraoral scanning system by comparing linear measurements obtained from conventional models and digital models. METHODS: Both conventional models (control group) and intraoral scanning (experimental group) of 5 volunteers were made. After taking silicon impressions, the volunteers' oral cavities were scanned directly by Trios Ortho (3 Shape) at 8a.m., 13p.m., 18p.m. and repeated for 15 days. The gypsum models were measured by digital caliper and regarded as golden standard. The intraoral scanning files were measured by Simplant software. A well-trained examiner measured them in random order at 8a.m., 13p.m. and 18p.m. The measurements were repeated for 15 times. Datasets obtained from different groups were compared for accuracy via paired t test. A one-way analysis of variance (ANOVA) was implemented to compare differences within experimental groups for reproducibility using SAS 11.0 software package. RESULTS: There was a significant linear difference between gypsum model and intraoral scanning digital model in the parameter of 23L from volunteer V1 (P<0.01). In terms of accuracy and reproducibility, no significant difference was found (P>0.05). CONCLUSIONS: The accuracy and reproducibility of intraoral scanning on whole arches are quite acceptable in this in vivo study.

Key words: Intraoral scanning, Digital model, Accuracy, Reproducibility

中图分类号:

R783.5

谢轶伦, 沈刚. 全口牙列口内扫描的精确性与可重复性分析[J]. 上海口腔医学, 2016, 25(5): 593-599.

XIE Yi-lun, SHEN Gang. Accuracy and reproducibility of intraoral scanning in vivo[J]. Shanghai Journal of Stomatology, 2016, 25(5): 593-599.

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