骨性Ⅱ类下颌后缩儿童经Herbst矫治器治疗后软组织变化研究  

Facial profile changes of herbst appliance therapy on growing children with class Ⅱ division 1 malocclusion and mandibular retrusion

作　　者：刘建林 周慧霞[2] 余涛[2] 王超[2] 戴娟[2] 

机构地区：[1]深圳市第二中医院口腔科,广东深圳530034 [2]第四军医大学口腔医学院正畸科

出　　处：《中国美容医学》2010年第6期885-887,共3页Chinese Journal of Aesthetic Medicine

摘　　要：目的:探讨Herbst矫治器治疗对生长发育期儿童软组织侧貌的影响。方法:本研究选取17例生长发育期骨性II类下颌后缩儿童作为研究对象,采用国产Herbst矫治器进行矫治,并以10例未经治疗的生长发育期骨性II类下颌后缩儿童作为对照。结果:经Herbst矫治器治疗后,软组织侧貌发生明显改变,面突度减小,代表下颌突度的下唇基角(S-N′-Si),下唇角(LiSi-SN),软组织颏突角(S-N′-Pg′)显著增大,H角减小,差异有显著性(P<0.05),代表上下唇矢状关系的上下唇基角(Sn-N′-Si)显著减小,同时颏唇沟深度(Si-LiPg′)显著减小;但代表上颌突度的上唇基角(S-N′-Sn)及上唇角(LsSn-SN)在治疗前后无明显变化。结论:Herbst矫治器的治疗促进了下面部软组织的生长,利于面型的改善,但颏唇沟厚度(Si-B)的显著减少,提示硬软组织改建的不一致性。Objective To investigate the influence of Herbst therapy on facial profile.Methods The material consisted of 27 skeletal Class Ⅱ cases,of which 17 were treated with the domestic Herbst appliance and the other 10 cases served as control.Results After 6 ～8 months（average 7 months） of Herbst appliance therapy,Class Ⅱ malocclusal relationships were corrected to Class I occlusal relationships.Herbst appliance therapy brought about a reduction of the facial soft tissue profile convexity.Upper lip base angular（S-N＇-Sn）,upper lip angular（LsSn-SN） remained unchanged before and after treatment.Lower lip base angular（S-N＇-Si）,lower lip angular（LiSi-SN）,soft tissue mental angular（S-N＇Pg＇）increased and H angular,upperlower lip base angular（Sn-N＇-Si）and mentalabial sulcus depth decreased.Conclusion It showed that Herbst appliance treatment stimulated growth of lower facial soft tissue and was beneficial to reduce facial convexity.However,decrease of mentalabial sulcus thickness suggested the modification of soft tissue fell behind skeletal growth.

关 键 词：HERBST矫治器 下颌后缩 头影测量 侧貌 

分 类 号：R783.5[医药卫生—口腔医学]