McNamara分析法评价改良SUS^2矫治器治疗安氏Ⅱ类错的临床疗效  

Evaluation of the clinical effects of refined SUS^2 on Class Ⅱ malocclusion by Mc Namara method

作　　者：浦逢燕[1] 李青奕[2] 

机构地区：[1]南通市中医院口腔科,江苏南通226001 [2]南京医科大学口腔疾病研究江苏省重点实验室,南京医科大学附属口腔医院正畸科,江苏南京210029

出　　处：《口腔医学》2016年第9期829-831,共3页Stomatology

摘　　要：目的采用Mc Namara分析法评价改良SUS2矫治器矫治安氏Ⅱ类错的效果。方法分别采用改良SUS2矫治器和传统SUS2矫治器治疗共20例安氏Ⅱ类错,对治疗前后头颅侧位定位片采用Mc Namara分析进行分析比较。结果改良SUS2组和SUS2组都造成了上齿槽座点(A点)到鼻根点到眶耳平面(N-FH)垂线距离的减小,分别减小了0.6 mm和0.4 mm。下切牙切缘沿功能平面(function occlusal plane,FOP)前移了分别为0.3 mm和1.5 mm。对于下切牙切缘到上齿槽座点与颏前点连线(L1–Apo),则分别前移了0.6 mm和2.5 mm。结论改良SUS2矫治器可以取得和传统SUS2矫治器相似的临床效果,但允许在排齐牙列之前就前伸下颌,可以更好地利用患者的生长潜力。Objective To compare the dentofacial changes produced by refined Sabbagh Universal Spring （SUS2） in late adolescent patients with Class II malocclusion, and to quantify them in comparison with patients treated by traditional appliance. Methods The study was carried out on two groups of Class lI patients. McNamara cephalometric analysis was performed on lateral cephalometric radi- ographs before and after treatment. Results Both the refined SUS2 group and traditional group reduced the distance of A to N-FH, the values of which were 0.6 and 0.dmm, respectively. Lower 1 horizontal to FOP （function occlusal plane） moved forward by 0.3 and 1. 5mm. As to Lower 1 - Apo, the changes of the two groups were 0.6 and 2.5mm, respectively （P〈0.05）. Conclusion Both appli- ances corrected Class II discrepancies through dentoalveolar changes. However, refined SUS2 appliance can promote mandible forward earlier before leveling the teeth compared to the traditional method, thus taking more advantages of the patients＇ growth potential.

关 键 词：SUS2矫治器 功能矫治 青春后期 

分 类 号：R783.5[医药卫生—口腔医学]