基于CBCT对错畸形切牙区牙槽骨形态的研究

Study on Incisors Alveolar Morphology in Malocclusion Patients Based on CBCT Data

目的:利用CBCT研究成人不同骨性错患者的上下颌切牙区牙槽骨形态特征。方法:选取符合纳入标准的95例CBCT数据,依骨性关系进行安氏分类。对上下切牙区牙槽骨的厚度、高度等相关指标进行测量和分析。结果:1)高度方面,骨性Ⅲ类在上切牙唇侧高度值最小,有统计学差异(P<0.05)。骨性II类上切牙腭侧高度值及下切牙舌侧高度值最大,有统计学差异(P<0.05)。2)厚度方面,骨性Ⅲ类在与骨性Ⅰ类、骨性Ⅱ类的比较中,有5项测量值最小,骨性I类有3项测量值最大,骨性Ⅱ类有2项测量值最大。以上所有对应的最大值与最小值进行比较,存在统计学差异(P<0.05)。结论:不同成人骨性分类上下颌切牙区牙槽骨形态存在差异。

Objective：To investigate the incisors alveolar morphology in patients with different kinds of malocclusion using CBCT data.Methods：According to inclusion criteria,95 adult patients were included,examined,and classified.The incisors alveolar bone vertical height and thickness were measured and compared with CBCT.Results：As to alveolar height,the labial vertical height of maxillary incisors of Class III was the least（P〈0.05）,and the palatal vertical height of maxillary incisors and the lingual vertical height of mandibular incisors of Class II were the most（P〈0.05）.As to alveolar thickness,there were 5 smallest values in Class III,3 biggest values in Class I and 2 biggest values in Class II（P〈0.05）.Conclusion：The incisors alveolar morphologies in malocclusion patients were different.