摘要
背景:研究表明颅底角与矢状骨面型的形成有关,牙合平面或后牙牙合平面对矢状骨面型形成的影响也存在一定的争议。目的:比较牙合平面倾斜度与后牙牙合平面倾斜度在决定矢状骨面型形成中的重要性,探讨颅底曲度、后牙牙合平面倾斜度对矢状骨面型形成的综合效应,及两者之间的相关性。方法:研究方案的实施符合西南医科大学附属口腔医院的相关伦理要求,患者及监护人对测量过程均知情同意,并签署了知情同意书。选择符合纳入标准的207名个体的头颅侧位片(男100例,女107例,年龄12-20岁),利用Uceph软件、SPSS软件(版本17.0)进行相关指标的测量和分析。按照前后不调指数(APDI)值将样本的矢状骨面型分为3组:Ⅱ类组、Ⅰ类组、Ⅲ类组。SNK、LSD法比较各项相关指标在3组之间的差异。运用Pearson积矩相关系数分析法对颅底角(NSBa角)、牙合平面(FH-OP)、后牙牙合平面(FH-POP)与其他相关测量指标的相关性进行分析。根据牙合平面倾斜度、后牙牙合平面倾斜度及颅底角进行分组,并运用成组t检验法分别对相关骨性与牙性指标的进行比较。根据后牙牙合平面角度和颅底角度建立4个牙齿骨骼型组:小颅底角-平坦后牙合平面组(S-F),小颅底角-陡峭后牙合平面组(S-S),大颅底角-平坦后牙合平面组(L-F),大颅底角-陡峭后牙合平面组(L-S)。应用交叉单因素方差分析法进行各组间差异的比较。结果与结论:①Ⅲ类错牙合畸形患者的颅底角明显小于Ⅰ类和Ⅱ类,而Ⅱ类错牙合患者的后牙牙合平面明显大于Ⅲ类和Ⅰ类;②代表矢状骨面型分类的指标(APDI及ANB角)在牙合平面倾斜组之间并未发现差异;③颅底角和后牙牙合平面交叉分组的比较中,只有小颅底角-平坦后牙牙合平面组和大颅底角-陡峭后牙牙合平面组间的比较结果显示ANB角和APDI值存在显著差异;④结果说明,对于影响矢状骨�
BACKGROUND:Cranial base angle is related to the formation of sagittal dentoskeletal type,and the effect of occlusal plane or posterior occlusal plane on the formation of sagittal dentoskeletal type remains controversial.OBJECTIVE:To compare the importance of occlusal plane inclination and posterior occlusal plane inclination in determining the formation of sagittal dentoskeletal type,and to explore the combined influence of the cranial base angle and posterior occlusal plane inclination on the formation of sagittal dentoskeletal type,and its correlation.METHODS:The study was implemented in accordance with the ethical requirements of Hospital of Stomatology,Southwest Medical University.Patients and their guardians signed the informed consents.Totally 207 lateral cephalograms from patients(100 males and 107 females,aged 12-20 years)were selected.Dentoskeletal landmarks and subsequent measurements were performed and analyzed using Uceph software and SPSS 17.0 software,respectively.The samples were classified as three sagittal dentoskeletal types according to the anteroposterior dysplasia indicator(APDI)value:class I,class II,and class III.The SNK and LSD methods were used for comparison among the three groups.The Pearson correlation coefficient analysis was used to analyze the correlation between skull base angle(NSBa angle),occlusion plane(FH-OP),posterior occlusion plane(FH-POP)and other related measurement indexes.Descriptive statistical methods were used to group occlusal plane inclination,posterior occlusal plane inclination and skull base angle,and the two-sample t-test was used to compare relevant bone and tooth indexes.Four dentoskeletal groups were established according to the posterior occlusion plane inclination and skull base angle:small skull base angle-flat posterior occlusion plane group(S-F),small skull base angle-steep posterior occlusion plane group(S-S),large skull base angle-flat posterior occlusion plane group(L-F),large skull base angle-steep posterior occlusion plane group(L-S).Intergroup comp
作者
余星月
吕冬梅
田姗璨
袁小平
程钎
Yu Xingyue;LüDongmei;Tian Shancan;Yuan Xiaoping;Cheng Qian(School of Stomatology,Southwest Medical University,Luzhou 646000,Sichuan Province,China;Department of Orthodontics,Hospital of Stomatology,Southwest Medical University,Luzhou 646000,Sichuan Province,China)
出处
《中国组织工程研究》
CAS
北大核心
2020年第11期1659-1665,共7页
Chinese Journal of Tissue Engineering Research
基金
西南医科大学附属口腔医院青年基金(201810)，项目负责人：程钎~~
关键词
颅底角
牙合平面
骨面型
错牙合畸形
cranial base angle
occlusal plane
skeletal frame
malocclusion
