| 成人安氏Ⅱ1分类错牙合切牙牙槽骨高度及厚度研究 |
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| 引用本文： | 齐晓倩,王兰如,李洪发. 成人安氏Ⅱ1分类错牙合切牙牙槽骨高度及厚度研究[J]. 天津医科大学学报, 2020, 0(3): 252-255,283 |
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| 作者姓名： | 齐晓倩 王兰如 李洪发 |
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| 作者单位： | （天津医科大学口腔医学院正畸科，天津 300070） |
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| 摘 要： | 目的:本研究对成人安氏Ⅱ1分类不同垂直骨面型患者治疗前的锥形束CT（CBCT）进行三维重建，测量切牙牙槽骨的高度和厚度，探讨成人安氏Ⅱ1分类错牙合不同垂直骨面型牙槽骨高度及厚度是否存在相关性，为临床上此类错牙合的诊断、矫治及风险评估提供理论依据。方法: 筛选CBCT，将测试对象分成高、均、低角3组，每组20例，应用Invivo 5 软件进行测量，对相关数据进行分析。结果:不同垂直骨面型切牙牙槽骨高度及厚度存在统计学差异（P＜0.05）。结论:（1）成人安氏Ⅱ1分类错牙合牙槽骨高度和厚度与垂直骨面型之间存在相关性。（２）成人安氏Ⅱ1分类切牙牙槽骨厚度，高角组最薄，低角组最厚。（3）成人安氏Ⅱ1分类切牙牙槽骨高度，高角组最高，低角组最低。
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| 关 键 词： | 成人 安氏Ⅱ1分类错牙合 垂直骨面型 锥形束CT |
Study on the height and thickness of incisor alveolar bone of adult skeletal class II division 1 malocclusion |
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| QI Xiao-qian,WANG Lan-ru,LI Hong-fa. Study on the height and thickness of incisor alveolar bone of adult skeletal class II division 1 malocclusion[J]. Journal of Tianjin Medical University, 2020, 0(3): 252-255,283 |
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| Authors: | QI Xiao-qian WANG Lan-ru LI Hong-fa |
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| Affiliation: | （Department of Orthodontics, The Dental College, Tianjin Medical University, Tianjin 300070, China) |
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| Abstract: | Objective: In this study, the CBCT(cone beam computed tomography) images of adult patients with class II1 malocclusion of different vertical skeletal types were reconstructed three-dimensionally before the treatment. The incisors’ alveolar bone height and thickness of the items were measured and analyzed to explore whether there was a certain correlation between the height and thickness of the alveolar bone of different vertical bone types in adults with class II1 malocclusion. This study provided theoretical basis for the diagnosis, treatment and risk assessment of orthodontic treatment about class II1 malocclusion. Methods: CBCT were selected and the subjects were divided into three groups: high angle group, average angle group and low angle group, with 20 cases in each group. The image data in the three-dimensional space coordinate system of anterior tooth alveolar bone were reconstructed by Invivo 5 software, and the results were analyzed. Results: There was a statistically significant difference in the alveolar bone height and thickness among the incisors of different vertical bone types(P＜0.05). Conclusion: (1) The height and thickness of the alveolar bone of the adult angel II1 malocclusion are correlated with the vertical bone profile.（2）The thickness of incisor alveolar bone of adult class II1 is the thinnest in the high angle group and the thickest in the low angle group.（3）The height of incisor alveolar bone of adult class II1 is the highest in the high Angle group and the lowest in the low angle group. |
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| Keywords: | adult class II1 malocclusion different vertical bone type cone beam CT |
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