成人安氏Ⅰ类双颌前突患者的上颌切牙区牙槽骨体积

发布时间：2018-02-23 03:21

本文关键词： 双颌前突上颌切牙牙槽骨体积锥体束计算机断层扫描　出处：《山东大学学报(医学版)》2015年08期 　论文类型：期刊论文

【摘要】：目的研究成人安氏Ⅰ类双颌前突患者上颌切牙区牙槽骨体积,为正畸诊断及治疗计划制定提供参考。方法选择安氏Ⅰ类双颌前突患者22例(双颌前突组)及个别正常牙合志愿者18例(对照组),分别拍摄头颅侧位片及锥体束计算机断层扫描(CBCT),利用Mimics 16.0测量上颌4颗切牙牙槽骨体积。结果双颌前突组上颌切牙区牙槽骨体积除中切牙唇侧根尖区、侧切牙唇侧根尖区及腭侧牙槽嵴顶区外,其他均较对照组小(P0.05)。此外,双颌前突组中切牙牙槽嵴顶区、根中区、腭侧牙槽骨区、牙槽骨总体积,侧切牙唇侧牙槽骨区、腭侧牙槽骨区、牙槽骨总体积及上颌4颗切牙牙槽骨体积之和均较对照组减少(P0.001)。结论成人安氏Ⅰ类双颌前突患者上颌切牙区牙槽骨量较少,在制定矫治计划尤其是切牙压低内收过程中应更加谨慎。
[Abstract]:Objective to study the alveolar bone volume of maxillary incisor in adult patients with Class I bimaxillary protrusion. Methods 22 patients with bimaxillary protrusion (bimaxillary protrusion group) and 18 normal occlusal volunteers (control group) were selected for orthodontic diagnosis and treatment planning. Mimics 16.0 was used to measure the alveolar bone volume of 4 maxillary incisors. Results the alveolar bone volume in the maxillary incisor region in the bimaxillary protrusion group was except the labial apical area of the central incisor. In addition, the crest region of alveolar crest, middle root region, palatine alveolar bone region, total alveolar bone volume, and alveolar bone area of lateral incisor in bilateral anterior protrusion group were smaller than those in control group. The total volume of alveolar bone and the total volume of alveolar bone and the volume of alveolar bone of 4 maxillary incisors in the palatal alveolar region were decreased by P 0.001. Conclusion the alveolar bone mass in the maxillary incisor region in adult patients with type I bimaxillary protrusion was less than that in the control group. More caution should be exercised in the development of corrective plans, especially in the process of incisor depression.
【作者单位】：山东大学口腔医院正畸科;
【基金】：山东省科技计划项目合作研究(2010G0020232,2010HM053,2050205)
【分类号】：R783.5

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