倒置埋伏阻生中切牙正畸牵引前后牙根发育的CBCT三维重建分析

doi:10.19439/j.sjos.2024.05.015

上海口腔医学 ›› 2024, Vol. 33 ›› Issue (5): 529-532.doi: 10.19439/j.sjos.2024.05.015

倒置埋伏阻生中切牙正畸牵引前后牙根发育的CBCT三维重建分析

颜传杰, 张薇, 陈志方, 吴建华

合肥市口腔医院·安徽医科大学合肥口腔临床学院, 安徽合肥 230601

收稿日期:2023-10-27 修回日期:2024-01-12 出版日期:2024-10-25 发布日期:2024-11-14
通讯作者: 张薇,E-mail: 71513460@qq.com
作者简介:颜传杰（1970-）,男,主治医师 E-mail: 1127171753@qq.com
基金资助:
合肥市自主创新政策“借转补”项目资助（J2019Y03）; 蚌埠医科大学科技项目自然科学重点项目（2023byzd225）; 陈志方牙槽外科名医工作室（2019-2022）; 吴建华正畸名医工作室（2019-2022）

Analysis of root development of maxillary inverted impacted central incisor before and after orthodontic traction by CBCT

YAN Chuan-jie, ZHANG Wei, CHEN Zhi-fang, WU Jian-hua

Hefei Stomatological Hospital, Anhui Medical University, School of Stomatology. Hefei 230601, Anhui Province, China

Received:2023-10-27 Revised:2024-01-12 Online:2024-10-25 Published:2024-11-14

摘要/Abstract

摘要： 目的： 使用CBCT三维重建分析,探讨倒置埋伏阻生中切牙正畸牵引前后牙根发育的变化。方法： 选择改良活动牵引器联合外科助萌治疗的10例上颌单侧倒置埋伏阻生中切牙患者,使用Mimics 21.0软件对治疗前后埋伏阻生中切牙(埋伏牙组)及对侧同名牙(健侧组)的CBCT数据进行三维重建,并计算牙体积与表面积。采用SPSS 26.0软件包进行配对t检验,比较治疗前后牙根发育情况。结果： 10例患者均牵引成功,平均用时（16.10±4.46）个月。治疗后埋伏牙组牙体积与表面积均较治疗前显著增加（P<0.01）。牵引前和牵引后埋伏牙组牙体积与表面积均显著小于健侧组（P<0.01）,但治疗过程中,埋伏牙组与健侧组牙体积与表面积的增加量无统计学差异（P>0.05）。结论： 改良活动牵引器联合外科助萌可促进上颌倒置埋伏阻生中切牙牙根进一步发育,是一种安全可靠的治疗方法。

关键词: 倒置阻生中切牙, 正畸牵引, 外科助萌, 锥形束CT

Abstract: PURPOSE: To investigate the changes of root development before and after orthodontic traction of maxillary inverted impacted central incisors using CBCT and Mimics software. METHODS: Ten patients, who had a maxillary inverted impacted central incisor, were treated using a modified movable retractor combined with surgical eruption. Cone-beam computed tomography(CBCT) was taken before and after treatment. Mimics 21.0 software was used to reconstruct the impacted central incisors (the impacted teeth group) and the contralateral namesake teeth (the contralateral group) before and after treatment, and the tooth volume and surface area were calculated by the software. SPSS 26.0 software package was used for paired t test, to evaluate the root development before and after treatment. RESULTS: All 10 patients were successfully treated,and the mean duration was (16.10±4.46) months. After treatment, the volume and surface area of teeth in the impacted teeth group were significantly increased compared with those before treatment(P<0.01). The volume and surface area of the teeth before and after traction were significantly lower than those of the contralateral group(P<0.01). However, during the treatment, there were no significant differences in the increase of tooth volume and surface area between the two groups(P>0.05). CONCLUSIONS: Modified movable retractor combined with surgical eruption can promote root development of maxillary inverted impacted tooth, which is a safe and reliable treatment method.

Key words: Inverted impacted central incisor, Orthodontic traction, Surgery assistant eruption, Cone-beam CT

中图分类号:

R738.5

颜传杰, 张薇, 陈志方, 吴建华. 倒置埋伏阻生中切牙正畸牵引前后牙根发育的CBCT三维重建分析[J]. 上海口腔医学, 2024, 33(5): 529-532.

YAN Chuan-jie, ZHANG Wei, CHEN Zhi-fang, WU Jian-hua. Analysis of root development of maxillary inverted impacted central incisor before and after orthodontic traction by CBCT[J]. Shanghai Journal of Stomatology, 2024, 33(5): 529-532.

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倒置埋伏阻生中切牙正畸牵引前后牙根发育的CBCT三维重建分析

Analysis of root development of maxillary inverted impacted central incisor before and after orthodontic traction by CBCT

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