骨性Ⅱ类不同垂直骨面型患者蝶鞍的差异性研究

Comparative Evaluation of Sella Turcica in Patients with Skeletal ClassⅡMalocclusion with Different Vertical Growth Patterns

目的探究骨性Ⅱ类不同垂直骨面型与蝶鞍大小、形态及鞍桥发生的相关性。方法选取2010年1月-2022年4月就诊于新疆医科大学第二附属医院及新疆医科大学第五附属医院口腔科的骨性Ⅱ类患者118例。垂直骨面型划分按中国人正常牙合Steiner分析法测量均值划分为:高角组44例(GoGn-SN>37.7°)、均角组44例(27.3°≤GoGn-SN≤37.7°)、低角组30例(GoGn-SN<27.3°)。通过头颅侧位片观测三组蝶鞍大小、形态及鞍桥发生情况,并比较组间及性别间的差异。结果三组患者蝶鞍直径、深度、长度测量参数进行比较,差异有统计学意义(P<0.05);高角组患者不同性别蝶鞍直径及低角组患者性别间蝶鞍长度比较,差异有统计学意义(P<0.05);均角组不同性别蝶鞍形态比较,差异有统计学差异(P<0.05);高角组不同性别蝶鞍长度及深度,均角组不同性别蝶鞍长度、深度及直径,低角组不同性别蝶鞍深度及直径分别比较,差异有统计学差异(P<0.05);高角组及低角组不同性别蝶鞍形态,三组患者蝶鞍形态、蝶鞍鞍桥发生率,以及三组不同性别蝶鞍鞍桥发生率比较,差异无统计学意义(P>0.05)。结论垂直骨面型与蝶鞍大小存在关联,垂直骨面型与蝶鞍形态以及蝶鞍鞍桥无关联,可为口腔正畸诊断及治疗提供临床参考。

Objective To compare the size,shape and incidence of sella turcica bridging in patients with different vertical growth patterns in skeletal classⅡmalocclusion.Methods A total of 118 patients with skeletal classⅡmalocclusion were selected from the Department of Stomatology of the Second Affiliated Hospital of Xinjiang Medical University and the Fifth Affiliated Hospital of Xinjiang Medical University from January 2010 to April 2022.According to the mean value of Steiner analysis of Chinese normal occlusion,44 cases were divided into high angle group(GoGn-SN>37.7°),44 cases were divided into average angle group(27.3°≤GoGn-SN≤37.7°),30 cases were divided into low angle group(GoGn-SN<27.3°).The size,shape and saddle bridge of the three groups were observed by lateral cephalogram,and the differences between groups and genders were compared.Results There were significant differences in the measurement parameters of sella diameter,depth and length among the three groups(P<0.05).There were significant differences in sella diameter between different genders in the high angle group and sella length between different genders in the low angle group(P<0.05).There was significant difference in sella morphology between different genders in the average angle group(P<0.05).There were significant differences in the length and depth of sella between different genders in the high angle group,the length,depth and diameter of sella in different genders in the average angle group,and the depth and diameter of sella in different genders in the low angle group(P<0.05).There was no significant difference in the sella morphology of different genders in the high angle group and the low angle group,the sella morphology and the incidence of sella bridge in the three groups,and the incidence of sella bridge in the three groups(P>0.05).Conclusion There is a correlation between the vertical facial type and the size of the sella,and there is no correlation between the vertical facial type and the shape of the sella and the sella bridge,which can provide clinical reference for orthodontic diagnosis and treatment.