国际医药卫生导报2014，Vol.20Issue(1)：6-9,4.DOI:10.3760/cma.j.issn.1007-1245.2014.01.003
口外力平面导板矫治替牙期安氏Ⅱ类1分类错(牙合)的临床研究
Clinical research on efficacy of headgear and biteplane appliances in treatment for mixed dentition patients with Class Ⅱ Division 1 malocclusion
摘要
Abstract
Objective To explore efficacy of headgear and biteplane appliances in treatment for mixed dentition patients with Class Ⅱ Division 1 malocclusion.Methods 30 mixed dentition patients with Class Ⅱ Division 1 malocclusion were randomly divided into two groups,15 patients for each group.The treatment group was treated by headgear and biteplane appliances,the control group was observed.The treatment period lasted for 15 months.Lateral cephalometric radiographs of all patients were taken before and after treatment period.Some parameters of sagittal anatomical landmarks were studied by the cephalometric analysis.All of the statistic analysis were performed by SPSS13.0 software.Results Except the factor of growth,treatment with headgear and biteplane appliances resulted in reduction of SNA angle,ANB angle,U 1/SN angle,U1/PP angle,Wits and U1-AP.There were no statistical significant differences found between two groups in SNB angle,MP/SN angle,MP/PP angle,L1/MP angle,Pg-NFH and L1-AP (P ＞ 0.05).After treatment period,Naso-labial angle and Z angle increased,the variation about two parameters among two groups was of statistical significance (P ＜ 0.05).There was no significant difference among two groups in lower lip to E plane distances (P ＞ 0.05).Conclusion Headgear and biteplane appliances have a beneficial effect on the mixed dentition patients with Class Ⅱ Division 1 malocclusion about bones,teeth and soft tissue.It is helpful for the fixed orthodontic treatment.关键词
安氏Ⅱ类错(牙合)/口外牵引器/平面导板Key words
Angle' s Class Ⅱ malocclusion/ Extraoral traction appliance/ Biteplane引用本文复制引用
赖晓宇,翁春辉,陆笑..口外力平面导板矫治替牙期安氏Ⅱ类1分类错(牙合)的临床研究[J].国际医药卫生导报,2014,20(1):6-9,4.基金项目
广州市医药卫生科技项目(201102A213213) （201102A213213）
