| 阮晓慧,刘芳,吴佩玲.新疆维吾尔族青少年骨性Ⅱ类错患者切牙区牙槽骨结构特点的初探[J].口腔材料器械杂志,2017,26(1):25-29. |
| 新疆维吾尔族青少年骨性Ⅱ类错患者切牙区牙槽骨结构特点的初探 |
| Characteristics of alveolar bone structure in Uygur teenagers with skeletal Class II malocclusion in Xinjiang |
| 投稿时间：2016-01-20 修订日期：2016-04-09 |
| DOI：10.11752/j.kqcl.2017.01.06 |
| 中文关键词: 骨性Ⅱ类 垂直骨面型 牙槽骨 切牙区 |
| 英文关键词:Skeletal class Ⅱ Vertical facial skeletal types Alveolar Incisors area |
| 基金项目:新疆乌鲁木齐市水磨沟区科技计划项目（SQ2015） |
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| 中文摘要: |
| 目的 分析新疆维吾尔族青少年骨性Ⅱ类错患者切牙区牙槽骨的结构特点，为正畸临床提供一定的参考。方法 选取年龄在11~16岁维吾尔族骨性Ⅱ类错患者60例。根据垂直骨面型分为高角组、均角组和低角组，每组各20名，拍摄头颅定位侧位片，通过Adobe Photoshop cs7图像处理软件测量相应实验指标：切牙区牙槽骨厚度：上下颌切牙根中点、根尖点唇腭（舌）侧牙槽骨厚度（UBM、ULM、LBM、LLM、UBP、ULP、LBP、LLP），及根尖点牙槽骨总厚度（UBP+ULP、LBP+LLP）；切牙区牙槽骨高度：上下颌切牙唇腭（舌）侧牙槽嵴顶到釉牙骨质界的距离（UBH、ULH、LBH、LLH）；应用SPSS17.0统计软件对测量结果进行比较分析。结果 ①牙槽骨厚度：UBP+ULP、LBP+LLP、UBP、UBM、LBP、LBM、ULP、ULM在3组间差异有统计学意义（P<0.05）；②牙槽骨高度：LBH低角组与高角组、低角组与均角组间差异有统计学意义（P<0.05）。结论 新疆维吾尔族青少年骨性Ⅱ类错患者切牙区在低角组牙槽骨最厚，高角组牙槽骨最薄；下颌唇侧低角组牙槽骨高度最低，高角组最高，提示在对维吾尔族青少年骨性Ⅱ类错高角型患者治疗过程中，前牙内收时要防止骨开窗、骨开裂的发生，而对于低角型患者唇侧牙槽骨较厚，前牙内收范围相对较大。 |
| 英文摘要: |
| Objective To study the characteristics of alveolar bone structure in Uygur patients with skeletal Class Ⅱ malocclusion in Xinjiang. Method 60 teenagers of Uygur nationality aged 11-16years (31 males, 29 female,mean age:13.5) with class Ⅱ malocclusion were assigned to 3 groups based on theirvertical facial type:high-angle, average-angle,and low-angle. Cephalometric films were taken, and the following parameters were measured in Adobe Photoshop CS7:thickness of anterior alveolar bone defined as thickness of upper(lower) anterior alveolar bone in apex and in middle(UBM、ULM、LBM、LLM、UBP、ULP、LBP、LLP), all thickness of upper (lower) anterior alveolar bone in apex(UBP+ULP、LBP+LLP); and height of anterior alveolar bone defined as the distance from alveolar ridge crest of bone bound to the glaze. SPSS17.0 statistical software was used for sorting and analysis. Results ① alveolar bone thickness:UBP +ULP, LBP +LLP, UBP, UBM, LBP, LBM were different in all of the three groups (P<0.05), ② alveolar bone height:LBH was different in low-angle vs.high-angle group, andlow-angle vs. average-angle group (P<0.05). Conclusions Alveolar bone structure in teenager patients of the Uygur nationality with skeletal Class II malocclusion in Xinjiang showed that low-angle group was thickest and high-angle group was thinnest. Mandible labial alveolar bone height showed that low-angle group was the lowest and high-angle group was highest. Therefore, to prevent the occurrence of fenestration of the anterior teeth retractionin Uygur teenagers, anterior teeth abduction range should be relatively large for low angle patients with labial alveolar bone thickness. |
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