| 上颌单颌拨牙矫治安氏Ⅱ类1分类错He |
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| 引用本文： | 吕婴,周彦秋.上颌单颌拨牙矫治安氏Ⅱ类1分类错He[J].中华口腔医学杂志,2000,35(6):423-425. |
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| 作者姓名： | 吕婴 周彦秋 |
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| 作者单位： | 首都医科大学附属北京口腔医院正畸科,北京 |
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| 摘 要： | 目的 探讨上颌单颌拨牙矫治安氏Ⅱ类１分类错Ｈｅ的疗效、适应证和临床意义。方法 对１４例安氏Ⅱ类１分类错Ｈｅ患者采用上颌单颌拔牙模式进行矫治，将矫治前后的Ｘ线头影测量数据进行对比。结果 ①１－ＦＨ角减少１１．０３＾。，＾－１－ＭＰ角增加３．０７＾。；②下颌综合长度增加３．３０ｍｍ；③上、下唇突度分别减小２．６５ｍｍ和１．６４ｍｍ。上述测量项目矫治前、后的均值之间，差异具有显著性（Ｐ〈０．０５～０．０
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| 关 键 词： | 安氏Ⅱ类1分类错He 上颌单颌拔牙 矫治 |
Treatment of Class II division 1 malocclusions with single maxillary extraction orthodontics] |
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| Y Lü,Y Zhou.Treatment of Class II division 1 malocclusions with single maxillary extraction orthodontics][J].Chinese Journal of Stomatology,2000,35(6):423-425. |
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| Authors: | Y Lü Y Zhou |
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| Institution: | Department of Orthodontics, Beijing Hospital for Stomatology, Capital University of Medical Sciences, Beijing 100050, China. |
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| Abstract: | OBJECTIVE: To investigate the effects, indications and clinical significance of single maxillary extraction orthodontics used for class II division 1 malocclusions. METHODS: 14 class II division 1 patients were treated by single maxillary extraction orthodontics, the cephalometric data before and after treatment were analysed by statistical methods. RESULTS: After treatment, 1. the angle 1-FH had decreased by 11.03 degrees and the angle 1-MP had increased by 3.07 degrees; 2. The mandibular length had increased by 3.30 mm; 3. the upper and lower lip were retruded by 2.65 mm and 1.64 mm respectively. Statistical significance (P < 0.001-0.05) was found between the means before and after treatment. CONCLUSIONS: Single maxillary extraction orthodontics is suitable for class II division 1 patients with less labial tipping of lower incisors and less lip protrusion. |
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