摘要
目的比较骨性Ⅱ类错牙合双期矫治的治疗效果是否优于单期矫治。方法收集12例进行双期矫治的骨性Ⅱ类患者(双期组),同时选取主要指标与双期组相近的12例进行单期矫治的骨性Ⅱ类患者(单期组)。对比分析2组患者治疗前6项及治疗后44项头影测量指标的差异。结果 2组患者矫治前6项X线头影测量主要指标的差异无统计学意义(P>0.05)。治疗后双期组ANB角[(2.97±0.63)°]、FMA角[(25.90±6.27)°]小于单期组[ANB角,(4.15±0.79)°;FMA角,(34.17±7.29)°],U1-NA角[(24.93±5.19)°]大于单期组[(18.78±4.50)°],差异均有统计学意义(P<0.05)。矫治后双期组U1-AP距[(4.70±1.29)mm]小于单期组[(6.53±2.68)mm],差异有统计学意义(P<0.05)。结论双期矫治后患者骨性远中关系、垂直骨面型、上前牙唇倾度及突度比单期矫治效果更好。
Objective To compare the efficacy of one-phase and two-phase treatment on skeletal classⅡmalocclusion.Methods We enrolled 12 patients with skeletal classⅡmalocclusion who underwent two-phase treatment and 12 patients who underwent one-phase treatment;we then matched patients on the basis of important indexes.Respective cephalometric analyses,comprising 6 and 44 indexes,were performed before and after treatment.Results There was no significant difference between the two groups in the 6 indexes of X-ray cephalometric measurements before treatment.After treatment,ANB and FMA angles were significantly smaller in the two-phase treatment group than in the one-phase treatment group(ANB angle,2.97°±0.63°vs 4.15°±0.79°;FMA angle,25.90°±6.27°vs 34.17°±7.29°).The U1-NA angle was significantly larger in the two-phase treatment group than in the one-phase treatment group(24.93°±5.19°vs 18.78°±4.50°),while U1-AP distance was smaller in the two-phase treatment group than in the one-phase treatment group(4.70±1.29 vs 6.53±2.68 mm).Conclusion In patients undergoing two-phase treatment,better correction is achieved in the osseous distance relationship,facial type tends to be more average,upper incisor lip gradient degree is closer to normal,and the upper incisor exhibits ideal protrusion.
作者
韩丽丽
代昕
侯志明
HAN Lili;DAI Xin;HOU Zhiming(Fushun Oral Disease Prevention and Treatment Institute,Fushun 113008,China;The 1st Orthodontics Department,School of Stomatology,China Medical University,Liaoning Province Key Laboratory of Oral Diseases,Department of Orthodontics,Liaoning Province Translational Medicine Research Center of Oral Diseases,Shenyang110002,China;Shenyang Heping Ailly Dental Clinic,Shenyang110002,China)
出处
《中国医科大学学报》
CAS
CSCD
北大核心
2018年第9期829-833,共5页
Journal of China Medical University
基金
沈阳市科学技术计划(F14-158-9-39)。
关键词
骨性Ⅱ类错
双期矫治
单期矫治
头影测量
skeletal classⅡmalocclusion
two-phase treatment
one-phase treatment
cephalometry
