下颌神经管颌骨内走行方向的锥形束CT测量分析

发布时间：2018-02-22 00:42

本文关键词： 下颌神经下颌骨锥束计算机体层摄影术牙种植老年人(-)　出处：《中国医学影像学杂志》2014年03期 　论文类型：期刊论文

【摘要】：目的探讨老年人下颌磨牙区牙槽骨高度严重不足时,行偏颊或偏舌跨下颌神经管种植术的可行性。资料与方法对160例老年患者下颌骨患者行锥形束CT扫描,在预定截面上测量下颌神经管至颊、舌以及下颌骨下缘的距离。结果第一、第二磨牙下颌神经管内缘至舌侧骨板的距离均小于下颌神经管外缘至颊侧骨板的距离,差异有统计学意义(t=40.532、45.278,P0.01)。第一磨牙颊、舌侧骨板的水平距离和下颌神经管外缘至颊侧骨板的距离均小于第二磨牙,差异有统计学意义(t=35.134、38.134,P0.01)。第一磨牙居中型为主,共102例(81.6%);第二磨牙以偏舌型为主,共110例(81.5%)。结论下颌磨牙区牙槽骨高度明显不足时,在多数第二磨牙区及部分第一磨牙区偏颊侧越过神经管植入种植体是可行的。
[Abstract]:Objective to investigate the feasibility of transmandibular nerve tube implantation in the mandibular molar region of the elderly when the height of alveolar bone in the mandibular region is serious deficiency. Materials and methods Cone-beam CT scanning was performed on 160 cases of mandibular bone in elderly patients. The distance between the mandibular nerve tube and the cheek, the tongue and the lower margin of the mandible was measured. Results first, the distance from the inner edge of the mandibular nerve tube to the lingual bone plate of the second molar was smaller than the distance from the outer edge of the mandibular nerve tube to the buccal bone plate. The horizontal distance between the first molar and the lingual bone plate and the distance from the outer edge of the mandibular nerve tube to the buccal bone plate were significantly lower than those of the second molar. The difference was statistically significant. The second molar was mainly tongue type, and 110 cases were 81.5%. Conclusion when the alveolar bone height in the mandibular molar region is obviously insufficient, it is feasible to transfer the nerve tube implant over the buccal side in most of the second molar region and part of the first molar region.
【作者单位】：南昌大学第三附属医院口腔科;
【基金】：南昌市科技支撑计划项目(2013KJZC030)
【分类号】：R816.98;R783.6

【参考文献】