控根辅弓对上颌切牙转矩疗效的临床研究  

A clinical study on the effect of maxillary incisor torque with controlling root auxiliary arch

作　　者：秦燕军[1] 顾月光[2] 刘可[3] 于剑南[4,5] 沈云娟[1] 赵宏[4,5] 赵春洋[4,5] 

机构地区：[1]常州市口腔医院正畸科,213003 [2]连云港市第一人民医院口腔科 [3]南京军区南京总医院口腔科 [4]南京医科大学口腔医学研究所 [5]南京医科大学附属口腔医院正畸科

出　　处：《实用口腔医学杂志》2014年第6期787-791,共5页Journal of Practical Stomatology

基　　金：江苏省高校优势学科建设工程资助(编号:2014-37)

摘　　要：目的:探讨控根辅弓对直丝弓矫治器患者的上颌切牙转矩效果。方法:选择22例安氏Ⅱ1拔牙矫治的患者,采用直丝弓矫治器矫治,在精细调整阶段配合控根辅弓对过度直立或内倾的上颌切牙进行正转矩。按主弓丝不同分为2组,14例主弓丝为0.46 mm×0.64 mm的不锈钢方丝,8例主弓丝为0.46 mm的不锈钢圆丝。对22例上颌切牙转矩前后的X线头影测量结果采用t检验进行统计分析。结果:22例上颌切牙转矩后的X线头影测量结果显示,1-SN、UIa-NA值增加(P<0.01),控根辅弓对上切牙的正转矩效果明显;转矩的时间,主弓丝为圆丝上颌切牙转矩快于主弓丝为方丝,P<0.05。结论:在直丝弓矫治的精细调整阶段,配合前牙控根辅弓,是对内收后过度直立或舌倾的上颌切牙实现转矩的简单、有效的方法。Objective： To explore the torque effect of controlling root auxiliary arch on the straight wire appliance on maxillary anterior teeth. Methods： 22 patients with class Ⅱ 1 extraction treatment,treated with straightwire appliance,at the detailing treatment stage were treated with controlling root auxiliary arch over the erect or introverted maxillary incisors for positive torque. The main arch wire of 0. 46 mm × 0. 64 mm stainless steel edge wire was used in 14 cases,the main arch wire of 0. 46 mm stainless steel round wire was used in 8 cases. Cephalometric results before and after maxillary incisor torque were analyzed by t test. Results： After maxillary incisor torque in the 22 cases 1-SN and UIa-NA value increased（P〈0. 01）,positive torque was achieved by controlling root auxiliary arch on the upper incisors; the round wire maxillary incisor torque worked faster than the edge wire（P〈0. 05）. Conclusion： At the detailing stage of treatment straight wire appliance on front teeth,controlling root auxiliary arch is simple and effective in the treatment of excessive erect or lingual inclination of maxillary incisor.

关 键 词：转矩 上颌切牙 控根辅弓 直丝弓矫治器 

分 类 号：R783.5[医药卫生—口腔医学]