上颌腭侧微螺钉可摘式腭杆远中移动磨牙的研究
Maxillary molar distalization with the miniscrew-supported removable palatal arch
何武成 1吴泽琳 1李迎兰 1鲁光炜 1焉姝鹤1
作者信息
- 1. 810099,西宁市第一人民医院口腔正畸科
- 折叠
摘要
目的:评价上颌腭侧微螺钉可摘式腭杆远中移动上颌磨牙的临床效果.方法:共收集33例采用该装置进行磨牙远中移动治疗上颌轻中度拥挤和前突患者,分别于矫治前(T0期)和磨牙远移到位(T1期)后进行石膏模型的制取和头颅侧位片的拍摄,通过对模型和侧位片上相关变量的测量和统计学分析明确该装置下上颌磨牙的远中移动量和移动方式.结果:头影侧位片上第一磨牙远中平均移动3.6 mm(P＜0.001)、远中平均倾斜6°(P＜0.001)、平均压低0.6 mm(P＜0.05);模型上颌右侧第一磨牙远中平均移动4.2 mm(P＜0.001)、左侧平均移动4.0 mm(P＜0.001),左、右侧模型测量之间及其分别与头颅侧位片测量的第一磨牙远移数据差异均无统计学意义(P＞0.05).左右第一磨牙宽度增加3.1 mm(P＜0.05),右侧近远中颊尖点连线与中线夹角增大1.6°(P＞0.05),左侧夹角增大4.8°(P＜0.05).结论:上颌腭侧微螺钉可摘式腭杆能有效的进行磨牙的远中移动从而不拔牙解决上颌轻中度拥挤和前突患者的矫治需求.
Abstract
Objection:To evaluate the effects of the miniscrew supported removable palatal arch for maxillary molar distalization.Methods:33 patients with mild to moderate crowding teeth and maxillary protrusion were treated with the miniscrew supported remova-ble palatal arch.The lateral cephalograms and dental plaster models were taken at the beginning of the treatment(T0)and at the end of molar distalization(T1).The multicentre variables were measured and compared with statistical software.Results:Cephalometrics showed that the average distance(mm)of the firs molar distalization was 3.6(P＜0.001),molar distal tipping was 6°(P＜0.001)and molar intrusion(mm)was 0.6(P＜0.05).The measurements of right and left molar distalization on plaster models were 4.2 mm(P＜0.001)and 4.0 mm(P＜0.001)respectively,the width of dental arch was increased by 3.1 mm(P＜0.05).The data of distalization of the first molar showed no statistical difference between right and left side on plaster cast and between model and cephalometric meas-urements.On the right side the angle between the mesial-distal tips line and the middle line was increased by 1.6°(P＞0.05),on the left by 4.8°(P＜0.05).Conclusion:The none extraction therapy for mild to moderate crowding teeth and maxillary protrusion can be realized by miniscrew supported removable palatal arch distalization appliance.
关键词
微螺钉/可摘式腭杆/磨牙远中移动/上颌拥挤/上颌前突Key words
Miniscrew/Removable palatal arch/Molar distalization/Maxillary crowed/Maxillary protrusion引用本文复制引用
基金项目
青海省西宁市科技局项目(2019-M-25)
出版年
2024
NETL
NSTL
万方数据