不同垂直骨面型错合畸形患者颈椎姿势差异的研究

目的:研究不同垂直骨面型错合畸形患者颈椎姿势的特点及差异,为正畸矫治错合畸形获得较好的临床效果及颅面、颈部生长发育的研究提供一定的参考依据。方法:采用计算机辅助X线头影测量技术,对226例不同垂直骨面型的儿童、成人在自然头位时拍摄的头颅定位侧位片进行测量研究,分别比较儿童以及成人不同垂直骨面型间颈椎姿势的差异。结果:儿童:CVT-OPT、SN-CP、SN-OPT及SN-CVT在低、均、高角各组间的差别均无统计学意义。成人:CVT-OPT在低角组与高角组间、均角组与高角组间的差别有统计学意义,高角组低于低角组和均角组,在低角组与均角组间的差别无统计学意义;SN-CP在低、均、高角各组间的差别有统计学意义,低角组<均角组<高角组;SN-OPT及SN-CVT在低角组与高角组间的差别有统计学意义,低角组<高角组,在低角组与均角组间、均角组与高角组间的差别无统计学意义。结论:不同垂直骨面型错合畸形患者的颈椎姿势在儿童无显著差异,在成人差异显著。

Research of Cervical Vertebrae Posture Differences of Malocclusion Patients with Different Vertical Facial Types

Objective: To study the characteristics and differences of patients'' cervical vertebrae posture with different vertical facial types in order to provide references for obtaining better clinical results through orthodontic treatment as well as the research of the growth of craniofacial structure and cervical vertebrae. Methods: Lateral cephalometric radiographs at natural head posture of 226 children and adults with different vertical facial types were retrospectively investigately by computerized cephalometric analysis, cervical vertebrae posture of children and adults was compared among different vertical facial type groups separately. Results: Children: there were no statistical differences in CVT-OPT, SN-CP, SN-OPT and SN-CVT among low-angle face group, average-angle face group and high-angle face group. Adults: there were statistical differences in CVT-OPT between the low and high-angle face group and between the average and high-angle face group, the CVT-OPT in high-angle face group decreased significantly than that in low-angle face group and in average-angle face group, there were no statistical differences in CVT-OPT between the low and average-angle face group; there were statistical differences in SN-CP among three groups, low-angle face group