新疆维吾尔族成人下颌前牙区颌骨形态学的CBCT研究

发布时间：2018-01-31 04:27

本文关键词： 下颌前牙区维吾尔族成人颌骨形态学锥形束CT　出处：《新疆医科大学》2017年硕士论文　论文类型：学位论文

【摘要】：目的:通过对新疆维吾尔族成年人下颌前牙区颌骨形态、宽度以及牙槽嵴顶处近远中距离的锥形束CT数值测量分析,为临床修复及种植手术提供理论依据。方法:选取2015年5月-2016年5月间120名在新疆医科大学第一附属医院口腔科就诊并拍摄CBCT的维吾尔族成年患者,利用CBCT图像对其下颌前牙区颌骨外形、颌骨不同垂直距离的唇舌侧宽度、牙槽嵴顶处近远中距离进行测量分析。结果:新疆维吾尔族成人下颌前牙区颌骨唇侧形态均为凹形,最凹点位于下颌骨上中份;舌侧外形呈现多样性,其中尖牙凸形比例最高,中切牙及侧切牙平坦形所占比例较高;牙槽嵴顶处颌骨唇舌侧宽度最窄,根尖处及颌骨中1/2颌骨唇舌侧宽度较窄,下颌骨下缘皮质骨上缘最宽,尖牙区牙槽嵴顶和根尖区颌骨唇舌侧宽度男性较比女性明显宽;左右尖牙、侧切牙、中切牙牙槽嵴顶的近远中距离是4.52~6.83,尖牙最长,侧切牙次之,中切牙最小。结论:维吾尔族成年患者出现下颌中切牙或者侧切牙缺失时需行种植修复时,应关注患者下前牙区颌骨的外形,防止在手术过程中由于存在倒凹造成唇舌侧穿通,以及手术过程中可能带来因近远中距离不足而造成损失邻牙的危害等给患者带来不必要的麻烦。
[Abstract]:Objective: to measure and analyze the shape, width and distance of mandibular anterior teeth of Xinjiang Uygur adults with conical beam CT. Methods: to provide theoretical basis for clinical repair and implant operation. From May 2015 to May 2016, 120 adult Uygur patients in the Department of Stomatology of the first affiliated Hospital of Xinjiang Medical University were selected and photographed by CBCT. The shape of mandibular anterior teeth and the width of lip and tongue at different vertical distances were analyzed by CBCT images. Results: the maxillary lip of the anterior mandibular region of Xinjiang Uygur adults was concave, and the most concave point was located in the middle part of the mandible. The shape of lingual side showed diversity, among which the ratio of canine convex was the highest, and the proportion of central incisor and lateral incisor flattened was higher. The width of lip and tongue at the top of alveolar crest was the narrowest, the width of lip and tongue at root tip and 1/2 jaw was narrower, and the upper margin of cortical bone in lower margin of mandible was the widest. The width of alveolar crest and maxillary lip and tongue in the canine region was wider in males than in females. The distance between left and right incisors, lateral incisors and alveolar crest of central incisors was 4.52% 6.83, the longest was canine, and the second was lateral incisor. Conclusion: when the mandibular central incisor or lateral incisor is missing in Uygur adults, we should pay attention to the shape of maxilla in the lower anterior teeth of Uygur. To prevent the side of lip and tongue perforation caused by the existence of inverted concave during the operation and the harm of loss of adjacent teeth caused by short distance and close distance in the course of operation, it will bring unnecessary trouble to the patients.
【学位授予单位】：新疆医科大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：R783.6;R816.98

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