新型正畸转矩簧夹装式门形辅弓及其临床应用  

Clinical application of a novel torque control auxiliary:crimpable gate spring

作　　者：郑丹 易俭如 李宇[1] 赵志河[1] Zheng Dan;Yi Jianru;Li Yu;Zhao Zhihe(State Key Laboratory of Oral Diseases&National Clinical Research Center for Oral Diseases&Dept.of Orthodontics,West China Hospital of Stomatology,Sichuan University,Chengdu 610041,China)

机构地区：[1]口腔疾病研究国家重点实验室,国家口腔疾病临床医学研究中心,四川大学华西口腔医院正畸科,成都610041

出　　处：《国际口腔医学杂志》2020年第4期491-496,共6页International Journal of Stomatology

基　　金：国家自然科学基金面上项目(31971247);四川省科学技术厅重点研发项目(2018SZ0379)。

摘　　要：转矩控制对正畸疗效尤为重要,然而传统的转矩控制方法有时无法获得理想的效果。本文介绍一种新型的成品夹装式门形辅弓,利用其独特的力学原理与结构设计,用于高效、便捷地改正目标牙转矩。夹装式门形辅弓由不锈钢圆丝弯制的U形曲与2个固位金属夹组成,根据U形曲高度分为6和8 mm 2种型号。夹闭金属夹将门形辅弓固定于主弓丝后,通过弯曲U形曲呈一定角度即可加力,U形曲位于主弓丝龈方或切方分别施加根舌向或根唇向转矩,弯曲角度越大则加力越大。通常加力2~3个月目标牙转矩即可发生明显改变。Torque control is critical for orthodontic treatment.However,current torque control approaches are still unsatisfactory.This article aims to introduce crimpable gate spring,a novel,customizable torquing auxiliary that comprises a U loop and two crimpable clips.According to the height of the U loop,the spring has two types:6 and 8 mm.The large arm of the force contributes to its high efficiency for torque control,and crimpable clips facilitate easy repair.Force is applied by bending the U loop at a certain angle;the force is substantial when the bending angle is large.Lingual and labial root torques are produced by placing the U loop in the gingival and incisal directions,respectively.The torque of the target tooth can generally be changed two to three months after force application.

关 键 词：转矩 夹装式门形辅弓 固定正畸矫治器 

分 类 号：R783.5[医药卫生—口腔医学]