Angle Ⅱ^1错（牙合）非拔牙矫治前后上气道矢状径及舌骨位置变化临床研究  

Clinical research of upper airway sagittal dimension and the position of hyoid in non-extraction patients with Angle＇s Ⅱ~1 malocclusion

作　　者：姜子茜[1,2] 郑博文[1] 安娜[1] 曹杉[1] 包扬[1] 刘奕[1] 

机构地区：[1]中国医科大学附属口腔医院奉天门诊,辽宁省口腔医学研究所,沈阳110013 [2]沈阳市口腔医院,沈阳110002

出　　处：《中国实用口腔科杂志》2015年第5期274-277,共4页Chinese Journal of Practical Stomatology

基　　金：辽宁省科学技术计划项目(2013225090);辽宁省自然科学基金(201202290)

摘　　要：目的研究分析直丝弓技术配合口外弓及Ⅱ类牵引对AngleⅡ^1错（牙合）非拔牙矫治患者上气道矢状径及舌骨位置的影响。方法选取2005—2013年中国医科大学附属口腔医院恒牙（牙合）AngleⅡ^1错（牙合）深覆盖（Ⅰ、Ⅱ度）患者60例,应用固定直丝弓技术配合口外弓、Ⅱ类牵引进行非拔牙矫治。A组30例患者使用口外弓配合Ⅱ类牵引治疗,B组30例患者只使用Ⅱ类牵引治疗。比较2组治疗前后上气道及舌骨位置26个相关测量项目,采用配对t检验比较组内差异,独立样本t检验比较组间差异。结果 A组：V-LPW、PNS-V、PNS-U、T-V、AH-SN、AH-FH、AH-PP、AH-OP、AH-PNS、AH-C3、AH-NPo、AH-CVP、C3-Me治疗后均增大,差异均有统计学意义（均P〈0.05）。B组：V-LPW、PNS-V、PNS-U、T-V、AH-SN、AH-FH、AH-PP、AH-PNS、AH-NPo、AH-CVP、C3-Me治疗后均增大,差异均有统计学意义（均P〈0.05）。2组治疗前后差值比较差异均无统计学意义（均P〉0.05）。结论应用口外弓治疗Ⅰ、Ⅱ度深覆盖患者,不会使上气道矢状径减小;Ⅱ类牵引可使舌骨位置发生向下、向前的变化。Objective To investigate the effect of the combination of face bow and classⅡ traction on upper airway sagittal dimension and the position of hyoid in non-extraction patients with AngleⅡ~1 malocclusion.MethodsFixed appliance with the combination of face bow and classⅡ traction was performed in 60 patients with deep overjet. The patients were divided into two groups according to different treatment plan（Group A： only classⅡtraction; Group B： face bow and classⅡtraction）. Twenty-six indexes of cephalometric radiograph before and after treatment were measured, intra-group and inter-group comparison was performed by pair t-test and independent t-test, respectively.ResultsAfter treatment, 13 indexes（V-LPW,PNS-V,PNS-U,T-V,AH-SN,AH-FH,AH-PP,AH-OP,AH-PNS,AH-C3,AH-Npo,AH-CVP,C3-Me）significantly increased in group A,and 11 indexes in group B（V-LPW,PNS-V,PNS-U,T-V,AH-SN,AH-FH,AH-PP,AH-PNS,AH-Npo,AH-CVP,C3-Me）increased significantly. No difference was found between groups before and after treatment.ConclusionThe upper airway sagittal demension isn＇t decreased by face bow and classⅡ traction for the overjet patients. Hyoid can move downward and forward by classⅡ traction.

关 键 词：AngleⅡ1错 上气道 舌骨位置 

分 类 号：R78[医药卫生—口腔医学]