铸造支架配合片段弓技术远移上颌磨牙的临床效果探讨  

Clinical effect of casting stent combined with segmental arch technique for distalization of maxillary molars

作　　者：陈国锋[1] 周威 谷妍[2] 赵春洋[2] CHEN Guofeng;ZHOU Wei;GU Yan;ZHAO Chunyang(Department of Stomatology,Yixing People's Hospital,Yixing 214200,China;Department of Orthodontics,The Affiliated Stomatological Hospital of Nanjing Medical University,Jiangsu Province Key Laboratory of Oral Diseases,Jiangsu Province Engineering Research Center of Stomatological Translational Medicine,Nanjing 210029,China)

机构地区：[1]宜兴市人民医院口腔科,江苏宜兴214200 [2]南京医科大学附属口腔医院正畸科,江苏省口腔疾病研究重点实验室,江苏省口腔转化医学工程研究中心,江苏南京210029

出　　处：《口腔生物医学》2022年第4期251-254,共4页Oral Biomedicine

基　　金：江苏省医学重点学科项目(ZDXKA2016026);江苏高校优势学科建设工程资助项目(2018⁃87)。

摘　　要：目的:探讨使用铸造支架配合片段弓矫治技术远中移动替牙期近中移位的上颌磨牙的临床效果。方法:选取替牙期单侧上颌第一恒磨牙近中倾斜移动的患者12例,采用铸造支架配合片段弓远中移动竖直上颌第一恒磨牙。对治疗前后的锥体束CT进行测量分析,以对侧健康同名牙作为对照,比较上颌第一恒磨牙治疗前后的位置改变情况。结果:所有病例患侧第一恒磨牙牙冠均产生远中向移动,平均远中移动量(4.82±1.45)mm,牙轴近中倾斜度平均减小(7.05±3.25)°(P<0.05),牙冠近中扭转情况得到改善,平均改变(9.09±1.61)°(P<0.05)。结论:铸造支架配合片段弓矫治技术能够有效治疗替牙期上颌第一恒磨牙的近中倾斜移动,将上颌第一恒磨牙调整到正常位置。Objective:To investigate the clinical effect on the distalization of maxillary molars with mesial oblique movement during mixed dentition stage using the casting stent combined with the segmental arch technique.Methods:Twelve patients with mesial mom⁃vement of first permanent molars were selected,casting stent combined with the edgewise segmental arch technique was used to distal⁃izate maxillary first molars.The cone bundle CT before and after treatment was measured and analyzed,and the opposite side teeth were used as the control to compare the position changes of maxillary first permanent molars before and after treatment.Results:In all ca⁃ses,the crown of the first permanent molar on the affected side moved distally,with an average distally moving amount of(4.82±1.45)mm,the mesial inclination of the tooth axis decreased by(7.05±3.25)°(P<0.05),and the mesial torsion of the crown was im⁃proved,with an average of(9.09±1.61)°(P<0.05).Conclusions:Casting stent combined with segmental arch technique can effec⁃tively treat the mesial oblique movement of maxillary first permanent molars in the mixed dentition stage and adjust the maxillary first molars to the normal position.

关 键 词：磨牙远移 铸造支架 片段弓技术 锥体束CT 

分 类 号：R783.5[医药卫生—口腔医学]