Pancherz法评价两种功能矫治器治疗安氏Ⅱ类1分类的骨牙效应  

Pancherz's analysis in evaluating the treatment effects of two appliances for class Ⅱ malocclusion

作　　者：张雨温[1] 陈中[1] 杨璞[1] 周力[1] 赵美英[1] 

机构地区：[1]河北医科大学第四医院,石家庄050011

出　　处：《现代口腔医学杂志》2005年第4期374-376,共3页Journal of Modern Stomatology

摘　　要：目的通过Pancherz法比较Activator+Headgear、Frankel-Ⅱ治疗生长发育期Ⅱ类错牙合的作用机制。方法Activator+Headgear(A组):20例,男12例,女8例;Frankel-Ⅱ(F组):24例,男12例,女12例,年龄均为男10～13岁,女9～12岁,ANB角>6°,覆盖≥4mm,后牙远中关系。收集治疗前后X线头影测量片,测量项目10项。结果①A组上颌骨生长受到抑制,上牙弓后移。F组上颌骨无明显抑制效果,上前牙内收。②两组下颌骨均显著生长,F组变化更为明显。③两组覆盖明显减小,A组骨因素40%。牙因素占60%。F组骨因素59%,牙因素41%。④两组磨牙关系均得到改变。A组骨因素48%,牙因素52%,F组骨因素83%,牙因素17%。结论①两种功能矫治器矫治Ⅱ类1分类错牙合均可刺激髁突和关节窝的改建,促进下颌骨生长,改善覆盖和磨牙关系。②经Pancherz分析法分析,在前牙覆盖及磨牙关系的改善中Activator+Headgear的牙因素明显,而Frankel-Ⅱ则相对表现出骨性改善的明显。Objective To evaluate the effects of Frankel-Ⅱ and Activator-headgear combination (AHGC) appliances on bone and dentition of juveniles with class Ⅱ, division 1 malocclusion using Pancherz's analysis approach.Methods Twenty patients (12 males and 8 females) were treated with AHGC appliance (Group A); 24 patients (12 males and 12 females) with Frankel-Ⅱ(Group F). All patients were treated for more than 14 hours everyday and for total of 8～10 months. Cephalograms were taken before and after the treatments. The data were analyzed with Pancherz's class Ⅱ correction analysis.Results ①In group A, the AHGC appliance was effective in inhibition of maxillary development. No significant difference was found in group F. ②Mandibular development was favorable in both groups. The Frankel-Ⅱ was more effective. ③Molar-relationship and overjet of the incisors were improved in both groups.Conclusion ①Functional appliances simulate the modification of the mandibular condyle and fossa and promote the development of the mandible. ②The FR-Ⅱ is more effective in the sagittal skeletal changes than the ACHG.

关 键 词：功能矫治器 Ⅱ类1分类错He PANCHERZ分析法 

分 类 号：R783.3[医药卫生—口腔医学]