中国实用口腔科杂志2009，Vol.2Issue(7)：423-425,3.
安氏Ⅱ类1分类病例治疗中微种植体支抗的应用11例分析
The analysis of 11 cases of Angel' s Class Ⅱ malocclusion treated with microscrew anchorage.
孔存英 1李凤华1
作者信息
- 1. 山东省济宁口腔医院,山东济宁272045
- 折叠
摘要
Abstract
Objective The purpose of this study was to evaluate the treatment results and clinical treatment method of Angel' s Class Ⅱ1 malocclusion cases by the application of microscrews anchorage. Methods The study comprised 11patients from Orthodontic Department of Jining Stomatology Hospital from the year 2005 to 2008. All the patients pre-sented with maxillary protrusion or little mandible intrusion treated with MBT straight wire appliance by extraction of premolars. Self-drilling microscrews were impanted in the bilateral buccal alveolar bone between the maxillary first mo-lars and second premolar before bonding straight wire appliance.Upper canines were ligated backward to the microacrews in the initial treatment.When the main arch was stable enough, the frontal teeth were retracted together with the micro-screws anchorage 1.5 to 2N force each side was added to microscrews and retracted teeth. The average treatment time was 19 months, and follow-up lasted 1 year after the treatment .The cephalometric films before and after the treatment were measured and compared. Results Angel's Class Ⅱ1 malocclusion in 11 patients were corrected effectively, ex-cept for 1 failure case. First molars had no significant changes in anteroposterior and vertical directions. Patients' facial profile had been improved greatly. After the treatment, SNA, ANB, FH to U1 and IMPA angle decreased significantly.Furthermore SNB increased a little , but FMA decreased a little. Neither of them had significant changes. Conclusion Angel' s ClassⅡ1 malocclusion can be treated effectively by microscrew anchorage, with no loss of molar anchorage.关键词
正畸支抗/微种植体支抗/安氏Ⅱ类1分类Key words
orthodontic anchorage/microscrew anchorage/Angel' s Class Ⅱ1 malocclusion分类
医药卫生引用本文复制引用
孔存英,李凤华..安氏Ⅱ类1分类病例治疗中微种植体支抗的应用11例分析[J].中国实用口腔科杂志,2009,2(7):423-425,3.
