不同骨面型患者蝶鞍尺寸的测量分析

Measurement and Analysis of the Size of Sella Turcica in Patients with Different Skeletal Facial Types

目的:测量不同骨面型患者蝶鞍尺寸并探讨其与颅面部各测量项目之间的相关性。方法:对126例错牙合畸形患者的头颅侧位片进行回顾性研究,按矢状骨面型分为骨性Ⅰ类组、骨性Ⅱ类组、骨性Ⅲ类组;按垂直骨面型分为均角组、低角组、高角组。测量颅面部相关硬组织数据以及蝶鞍尺寸,并进行统计学分析。结果:(1)不同性别患者蝶鞍尺寸无显著差异(P>0.05);(2)矢状骨面型组中,各组患者的蝶鞍尺寸无显著差异(P>0.05);(3)垂直骨面型组中,高角组蝶鞍直径、深度、面积最大(P<0.05),均角组与低角组的蝶鞍尺寸无显著差异(P>0.05);(4)蝶鞍长度与下颌平面角呈正相关(P<0.05);直径、深度、面积均与全面高、下面高、下颌体长、下颌平面角呈正相关(P<0.05)。结论:蝶鞍尺寸与垂直骨面型存在相关性,即蝶鞍直径、深度、面积越大,高角型趋势就越明显,可为正畸诊疗提供参考。

Objective:To measure the size of sella turcica in patients with different skeletal facial types and explore the correlation between the size of sella turcica and craniofacial measurements.Methods:Lateral cephalograms of 126 patients were retrospectively analyzed.According to sagittal facial type,they were divided into skeletal classⅠ,skeletal classⅡ,and skeletal classⅢ.According to vertical facial type,they were divided into average-angle group,low-angle group,and high-angle group.Data related to craniofacial hard tissues and sella turcica were measured and analyzed.Results:There were no significant differences in sella size between different genders.There were no significant differences in the size of sella turcica among the sagittal facial type groups(P>0.05).In the vertical facial type group,the diameter,depth,and area of sella turcica in high-angle group were larger than those in other two groups(P<0.05).But in the average-angle group and low-angle group,there were no significant differences(P>0.05).The length of sella turcica was positively related to mandibular plane angle(P<0.05).The diameter,depth,and area were positively related to the total face height,lower face height,mandibular length,and mandibular plane angle(P<0.05).Conclusion:The association between the size of sella turcica and vertical facial types is significant.The trend of high angle type is more obvious with the increase of diameter,depth,and area of sella turcica,and it can provide reference for orthodontic diagnosis and treatments.