Forsus与口外弓矫治生长发育高峰期安氏Ⅱ~1错的比较研究  

Comparison of 2 comprehensive Class Ⅱ treatment protocols including Forsus and headgear appliances

作　　者：潘爽[1] 张勇[1] 郭新星[1] 张瑾[1] 

机构地区：[1]济南市口腔医院正畸科,山东济南250001

出　　处：《临床口腔医学杂志》2012年第1期30-34,共5页Journal of Clinical Stomatology

基　　金：济南市科技局科研基金资助(200716006)

摘　　要：目的:评估生长发育期安氏Ⅱ1错非拔牙矫治中Forsus联合固定矫治器应用的临床疗效。方法:选择46名生长发育高峰期安氏Ⅱ1错不拔牙患者,随机分为两组,分别采用直丝弓矫治器配合Forsus或口外弓、颌间Ⅱ类牵引进行治疗,选择21例作为生长发育对照组。对矫治前(T1期)和治疗后(T2期)进行头影测量分析,使用单因素方差分析比较T1期3组病例各项测量值差异,以及组间治疗前后各测量值的差值,并对两治疗组间矫治疗程进行t检验。结果:Forsus组ANB、Wits值减小明显,上下颌骨长度差值增大显著。两治疗组下颌骨向前生长明显,Co-Go增加;两组病例均出现上前牙舌倾、伸长,下前牙唇倾,下颌第一磨牙近中移动,口外弓组更明显。Forsus组疗程明显短于口外弓组。结论:对生长发育高峰期安氏Ⅱ1错患者,Forsus矫治器可成为代替口外弓、Ⅱ类牵引有效的治疗方法。Objectine： To evaluate the effects of Forsus Fatigue Resistant Device followed by fixed appliances for sin- gle-phase comprehensive treatment of Class Ⅱ Division Ⅰ malocclusion at the pubertal growth spurt. Method： Forfty-six Class II patients were enrolled in the trial and allocated to 2 groups （23 patients were treated consecutively with Forsus fol- lowed by fixed appliances and 23 patients were treated consecutively with headgear followed by fixed appliances and Class Ⅱ elastics. Lateral cephalograms were taken before therapy and after the end of comprehensive therapy. Longitudinal observa- tions of a matched group of 21 subjects with untreated Class Ⅱ malocclusions were compared witla the 2 treated groups. Anal- ysis of variance （ANOVA） was used for statistical comparisons. Result： Significantly greater improvement in sagittal maxillo- mandibular relationships was found in the headgear group. The increase in effective mandibular length （Co-Gn） was signifi- cantly greater in both treatment groups when compared with natural growth changes in the Class Ⅱ controls. Retrusion of max- illary incisors, mesial movement of mandibular incisors and molars were significant in the two treated group, especially in the headgear group, The treatment time was shorter in the Forsus group, compared with headgear group. Conclusion： The Forsus FRD is an acceptable substitute for headgear and Class II elastics for noneompliant patients.

关 键 词：安氏Ⅱ类1分类错 FORSUS 口外弓 颌间Ⅱ类牵引 

分 类 号：R783.5[医药卫生—口腔医学]