一种单侧下颌第一恒磨牙远移的新方法及其临床疗效评价

doi:10.13591/j.cnki.kqyx.2022.08.006

口腔医学 ›› 2022, Vol. 42 ›› Issue (8): 707-712.doi: 10.13591/j.cnki.kqyx.2022.08.006

一种单侧下颌第一恒磨牙远移的新方法及其临床疗效评价

赵明璨¹, 王秀丽¹, 郝新青¹, 李小兵², 齐慧川³, 黄洋¹

1 吉林大学口腔医院儿童口腔科,吉林长春(130021);
2 四川大学华西口腔医院早期矫治专科,四川成都(610044);
3 吉林大学口腔医院正畸科,吉林长春(130021)

修回日期:2022-03-12 出版日期:2022-08-28 发布日期:2022-08-30
通讯作者: 黄洋 E-mail:huangyang1960@163.com
基金资助:
国家自然科学基金(82100956)

A new method for distal movement of unilateral mandibular first permanent molar and evaluation of its clinical efficacy

ZHAO Mingcan, WANG Xiuli, HAO Xinqing, LI Xiaobing, QI Huichuan, HUANG Yang

Department of Pediatric Dentistry, Stomatological Hospital of Jilin University,Changchun 130021, China

Revised:2022-03-12 Online:2022-08-28 Published:2022-08-30

摘要/Abstract

摘要： 目的介绍一种单侧下颌第一恒磨牙远移的新方法及其临床疗效评价。方法混合牙列期下颌前牙拥挤,单侧下颌第一恒磨牙近中前移病例15例,应用一种新型下颌磨牙远移矫治器远中移动近移的第一恒磨牙,进行矫治前后模型测量及X线测量分析,用统计学软件处理数据。结果经过3~7个月的治疗,患侧第一恒磨牙远中移动(4.85±2.07)mm,下前牙拥挤度减小(1.25±1.32)mm,矫治前后患侧下颌第一恒磨牙的牙长轴与基准平面所形成的前下交角(SA)减小(10. 40°±4.70°),L1-NB增加(2.51°±3.33°),前牙覆盖减小(0.92±1.79)mm,差异有统计学意义(P<0.05)。结论该单侧下颌第一恒磨牙远移的新方法能较快地远中移动下颌第一恒磨牙,但是在临床应用该装置远移下颌第一恒磨牙的同时也可以导致目标牙的远中倾斜以及下颌切牙的唇向倾斜。

关键词: 混合牙列, 下颌第一恒磨牙, 远中移动, 磨牙矫治器, 头影测量

Abstract: Objective To introduce a new method for distal movement of unilateral mandibular first permanent molar and evaluation of its clinical efficacy. Methods Fifteen cases in mixed dentition were selected, where mandibular anterior teeth were crowded, and the first permanent molar moved mesially. A new type of molar distalization appliance was used to move the unilateral first permanent molar that moved mesially to distal, and the analysis of gypsum model measurement and cephalometry before and after the orthodontic treatment and the data was processed by statistical software. Results After 3-7 months of treatment, the ipsilateral first permanent molar moved to distal (4.85±2.07) mm; the crowding degree of mandibular anterior teeth decreased by (1.25±1.32) mm. The anterior and inferior intersection angle formed by the long axis of the ipsilateral mandibular first permanent molar on the panoramic film and the reference plane decreased by (10. 40°±4.70°); the lower incisor axis was labial inclination by (2.51°±3.33°), and the overjet decreased by (0.92±1.79) mm. The difference was statistically significant (P<0.05). Conclusion The new method for distal movement of unilateral mandibular first permanent molar can move the mandibular first permanent molar faster, but it should be noted that when pushing the first permanent molar to distal in, it can also cause distal tilting movement and labial inclination of the mandibular incisor.

Key words: mixed dentition, mandibular first permanent molar, distal movement, molar appliance, cephalometry

中图分类号:

R783.5

赵明璨, 王秀丽, 郝新青, 李小兵, 齐慧川, 黄洋. 一种单侧下颌第一恒磨牙远移的新方法及其临床疗效评价[J]. 口腔医学, 2022, 42(8): 707-712.

ZHAO Mingcan, WANG Xiuli, HAO Xinqing, LI Xiaobing, QI Huichuan, HUANG Yang. A new method for distal movement of unilateral mandibular first permanent molar and evaluation of its clinical efficacy[J]. Stomatology, 2022, 42(8): 707-712.

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一种单侧下颌第一恒磨牙远移的新方法及其临床疗效评价

A new method for distal movement of unilateral mandibular first permanent molar and evaluation of its clinical efficacy

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