数字化排牙试验在正畸病例拔牙与否判断中的应用

›› 2019, Vol. 39 ›› Issue (1): 44-47.

数字化排牙试验在正畸病例拔牙与否判断中的应用

操亚波¹,傅露¹,郁雯科¹,王硕¹,李伯休²,陈丹鹏¹

1. 杭州口腔医院
2. 浙江大学医学院附属第二医院

收稿日期:2018-05-16 修回日期:2018-06-29 出版日期:2019-01-28 发布日期:2019-01-28
通讯作者: 陈丹鹏 E-mail:chendp29@163.com
基金资助:
2017年杭州市科技计划引导项目

Application of three-dimensional digital technology in extraction or non-extraction of orthodontic cases

Received:2018-05-16 Revised:2018-06-29 Online:2019-01-28 Published:2019-01-28

摘要/Abstract

摘要： 目的探讨数字化排牙试验在正畸病例拔牙与否判断中的应用。方法选取40例资料完整的正畸初诊病例作为研究样本。第1组由6名医师依据牙颌模型、X线片、面颌相片及传统的常规资料测量分析结果，对以上病例进行治疗方案设计。第2组由同样6名医师，根据以上资料再加上辅助数字化排牙试验的方法进行治疗方案设计。方案设计的结果分别判断为拔牙、不拔牙、临界3种情况。对2组拔牙与否判断的一致性进行统计分析和比较。结果以6人拔牙与否判断的结果完全一致为标准，第1组中，拔牙，不拔牙、临界的例数分别为3例、1例、5例，符合率分别为7.50%、2.50%、12.50%，总体符合率为22.50%。第2组中，拔牙、不拔牙、临界的例数分别为17例、8例、1例，符合率分别为42.50%、20.00%、2.50%，总体符合率为65.00%。选择配对设计Wilcoxon符号秩检验，对第1组和第2组各40个病例的临界偏离度进行差异性分析，检验结果表明Z值为-0.756（P＜0.001），说明第2组对于拔牙与否判断的一致性要显著高于第1组。结论在正畸病例治疗方案设计中辅助数字化排牙试验，可以对拔牙与否提供有益参考。

关键词: 三维数字化技术, 排牙试验, 口腔正畸, 治疗方案

Abstract: Objective: To discuss the application of three-dimensional digital technology in diagnostic set-up of orthodontic cases by comparing results’ consistency of tooth extraction or not based on two different therapeutic regimens with or without the three-dimensional digital technology.Methods: 40 orthodontic first-visit cases with complete history information in recent 5 years were selected as the research samples after the preliminary screening by an orthodontist with intermediate certificate in our hospital. All the samples were divided into two groups, and the therapeutic regimens were designed by 6 orthodontists with secondary senior position according to the impression models, X ray examinations, facial & oral pictures and analysis of traditional routine data measurement. Additionally, the three-dimensional digital technology, as an aiding method, was applied in the second group. Results of the therapeutic regimens were divided into tooth extraction, non-extraction and boardline cases. Statistical analysis was applied to compare the results consistency of tooth extraction situation between the two groups. Results: With a standard of completely consistent results of 6 orthodontists，consistency rate of tooth extraction, non-extraction and boardline cases of the first group were 7.50%, 2.50% and 12.93%, respectively with the 22.50% general coincidence rate, and the second group were 42.50%，20.00% and 2.50%, respectively with the 65.00% general coincidence rate. Set value of the extraction case as 1, and boardline case as 0, and non-extraction case as -1.Six doctors separately value the 40 cases ,and then summit every single case with the absolute value of what the doctor evaluates. We performed paired design and analyze the data with Wilcoxon rank test. The coincidence rates of extraction and non-extraction of the second group were higher than the first one, the coincidence rate of boardline cases of the second group was lower than the first one, and the differences were significant based on the statistics analysis.Conclusions: It can offer beneficial reference for tooth extraction or not by aiding three-dimensional digital technology into the design of orthodontic therapeutic regimens.

Key words: Three-dimensional digital technology, Diagnostic set-up, Orthodontic, Treatment planning

中图分类号:

R783.5

操亚波傅露郁雯科王硕李伯休陈丹鹏. 数字化排牙试验在正畸病例拔牙与否判断中的应用[J]. , 2019, 39(1): 44-47.

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