基于CBCT对维吾尔族成人上颌前牙区牙槽骨形态的测量分析

发布时间：2018-08-23 13:25

【摘要】：目的:通过锥形束CT测量新疆维吾尔族成年人上颌前牙唇侧牙槽骨厚度,深入了解维吾尔族成年人上颌前牙区牙槽骨解剖形态,为该区域种植术前评估以及治疗方案的选择提供理论依据。方法:在2013年8月至2016年6月就诊于新疆医科大学第一附属医院的维吾尔族成年人中,选取85名患者的CBCT资料,其中男性40名,女性45名,平均年龄(24.3±3.5)岁。共计选取510颗上颌前牙。纳入标准:上颌前牙无明显拥挤;上颌前牙覆牙合覆盖正常;上颌前牙无缺失;上颌前牙无修复体、充填体;牙周组织健康;无正畸治疗史;上颌骨无明显骨折及骨缺损;无影响骨代谢的全身疾病。在位于唇腭侧正中牙槽骨嵴顶下方2 mm、根中部、根尖部分别做垂直于受测矢状面直线,测量受测牙的唇腭侧牙槽骨的厚度,并对上颌前牙牙根与牙槽骨的矢状向位置关系进行定性分析。采用SPSS 17.0统计学软件对结果数据进行分析。对锥形束CT测量重复性检验牙槽骨厚度的总体比较采用单因素方差分析,组间两两比较采用LSD-t检验。检验水准为双侧α=0.05。结果:88.6%(452/510)的上颌前牙牙根矢状向位置为一类,牙根在近唇侧骨皮质;3.3%(17/510)的上颌前牙牙根矢状向位置为二类,在近腭侧骨皮质;8.0%(41/510)的牙根矢状向位置为四类,2/3以上的牙根同时接触唇腭侧骨皮质;上颌前牙唇侧正中骨嵴顶下方2 mm和根中部位点仅有1.1%(11/1020)的牙槽骨厚度2mm。上前牙唇腭侧正中三个不同位置牙槽骨的厚度:上前牙唇腭侧牙槽骨嵴顶下方2 mm、根中部、根尖部平均厚度。上颌前牙唇侧垂直于牙根长轴方向上的牙槽骨厚度依次为:根尖部牙槽骨嵴顶下方2 mm根中部。上颌前牙腭侧垂直于牙根长轴方向上的牙槽骨厚度依次为:根尖部根中部牙槽骨嵴顶下方2 mm。结论:新疆维吾尔族成人上颌前牙牙根位置绝大多数偏向唇侧,唇腭侧牙槽骨壁厚度存在差异,唇侧牙槽骨壁较薄。
[Abstract]:Objective: to measure the thickness of alveolar bone on the labial side of maxillary anterior teeth in Xinjiang Uygur adults by conical beam CT, and to understand the anatomical morphology of alveolar bone in maxillary anterior teeth of Uygur adults. To provide theoretical basis for preoperative evaluation and selection of treatment regimen in this area. Methods: from August 2013 to June 2016, 85 Uygur adults admitted to the first affiliated Hospital of Xinjiang Medical University were selected for CBCT data, including 40 males and 45 females, with an average age of (24.3 卤3.5) years. A total of 510 maxillary anterior teeth were selected. The inclusion criteria were as follows: no significant overbite of maxillary anterior teeth, normal overbite, no loss of maxillary anterior teeth, no restoration and filling of maxillary anterior teeth, healthy periodontal tissue, no history of orthodontic treatment, no obvious fracture of maxilla and bone defect. A systemic disease that does not affect bone metabolism. At 2 mm below the crest of the median alveolar bone of the labiopalatine side, the middle of the root and the apical part of the root were straight line perpendicular to the measured sagittal plane to measure the thickness of the alveolar bone of the labiopalatine side. The sagittal position relationship between the root and alveolar bone of maxillary anterior teeth was analyzed qualitatively. SPSS 17.0 statistical software was used to analyze the result data. Single factor analysis of variance (ANOVA) was used to compare the thickness of alveolar bone measured by conical beam CT and LSD-t test was used to measure the thickness of alveolar bone. The test level was 0. 05 for both sides. Results the sagittal position of the maxillary anterior root was in the first class, and the sagittal position of the maxillary anterior root in the proximal labial cortex was 3.3% (17 / 510). The sagittal position of the root in the proximal palatine cortex was 8.0% (41 / 510), and the alveolar bone thickness was only 1. 1% (11 / 1020) at 2 mm below the crest of the labial crest of the maxillary anterior tooth and only 1. 1% (11 / 1020) of the alveolar bone thickness at the same time. The thickness of alveolar bone was 2 mm below the top of the alveolar crest of the labial and palatal side of the anterior teeth, and the mean thickness of the middle root and the root apex. The thickness of alveolar bone perpendicular to the root long axis of maxillary anterior teeth was 2 mm below the top of alveolar crest. The thickness of alveolar bone perpendicular to the long axis of the root is 2 mm below the alveolar crest in the middle of the root of the maxillary anterior teeth. Conclusion: the root position of maxillary anterior teeth of Uygur adults in Xinjiang is mostly inclined to the labial side, and the thickness of alveolar bone wall of the labial and palatal side is different, and the alveolar bone wall of the labial side is thinner.
【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

【参考文献】