【摘要】 目的:观察腭中缝的钙化时间,分析腭中缝的钙化与年龄及性别之间的关系,用于成人及青少年患者快速扩弓前的个体评估和指导。方法:211例研究对象(4.2～43.8岁)的锥形束CT(cone beam CT,CBCT)图像,截取水平面腭中缝的形态,按照钙化程度不同分为5期,评估患者腭中缝的闭合程度与生理年龄及性别的关系。结果:随年龄增加,腭中缝钙化程度逐渐增加。完全钙化最早见于1例10岁女性患者,15岁年龄段中有50%的患者腭中缝钙化,在成人患者中仍可见一部分腭中缝未钙化的病例,最晚见于1例37岁女性患者。青春期男性腭中缝钙化较女性晚,而在青春期前及成人后,男女钙化分期未见差异。结论:腭中缝钙化与年龄相关,钙化时间从10岁开始持续至成人时期,部分成人患者腭中缝并未钙化。青春期男性腭中缝钙化较女性晚。上颌扩弓前应进行个体评估。更多还原

【Abstract】 Objective:This study aims to observe the calcification time of the midpalatal suture,evaluate the relationship between the calcification and age or gender by using cone-beam computed tomography,which can be used for individual assessment and guidance before rapid maxillary expansion in adults and adolescents. Methods:The CBCT images of 211 subjects(4.2-43.8 years old)were divided into five stages according to the degree of the midpalatal suture calcification. The relationship between the calcification degree and age or gender was evaluated. Results:Calcification degree of midpalatal suture increased with age. Complete calcification was first seen in a 10-year-old female,approximately 50% of patients aged 15 had calcified. However,some uncalcified midpalatal suture were still found in adult patients,and the latest was found in a 37-year-old woman. Calcification of the palatal suture was later in adolescent males than in adolescent females,but there was no difference between males and females before and after adolescence.Conclusion:Calcification of the midpalatal suture is associated with age,and continues from age 10 to adulthood. But in some adult patients,the midpalatal suture is not calcified. Calcification of the midpalatal suture is later in adolescent males than in adolescent females. It suggested that individual assessment is essential before rapid maxillary expansion.更多还原