骨性Ⅲ类错颅面结构及发育的性别差异  

Gender Differences in the Craniofacial Characteristics and Growth of Skeletal Class Ⅲ Malocclusion

作　　者：韦溅萍[1,2] 王建国[1,2] 苍松[1,2] 马佳君[1,2] 

机构地区：[1]南开大学附属口腔医院 [2]天津市口腔医院正畸科,天津300041

出　　处：《口腔医学研究》2011年第11期984-986,共3页Journal of Oral Science Research

基　　金：天津市科学自然基金(编号:08JCYBJC06100)

摘　　要：目的:探讨和分析骨性Ⅲ类错颅面形态结构及生长发育的性别差异。方法:选择骨性Ⅲ类错患者154例,男女分别分为恒牙初期和恒牙期2组,拍摄治疗前头颅定位侧位片行X线头影测量分析,采用独立样本t检验进行4组之间的比较分析。结果:男性颅底、上颌、下颌、前面高和后面高的线距均显著大于女性;恒牙期女性Y轴角小于男性。从恒牙初期到恒牙期,男性后颅底、下颌长和垂直面高增长显著;女性前颅底、上颌长、下颌长、前下面高和后面高均有显著增长,上下颌的矢状不调(ANB和NA-PA)加重,下颌平面角明显减小。结论:骨性Ⅲ类错的颅面形态及发育存在明显性别差异,临床治疗计划的制定和预后的评估应考虑男女的不同。Objective： To investigate gender differences in the craniofacial characteristics and growth of skeletal class Ⅲ malocclusion.Methods： Lateral cephalographs before treatment were taken in 154 patients with skeletal class Ⅲ disharmony.Cephalometric analysis was carried out.The results between sexes and two dentitions were compared by t-test.Results： Male subjects with skeletal class Ⅲ malocclusion present with significantly larger linear dimensions in the cranial base,maxilla,mandible,anterior facial heights,and posterior facial heights when compared with female subjects.Adult female subjects exhibited smaller Y axis than adult male subjects.Male subjects got a significant growth in posterior cranial base,mandible,and facial heights,especially in lower anterior facial height during the development.Female subjects exhibited increases in anterior cranial base,maxilla,mandible,lower anterior facial height,and posterior facial height.A relatively larger amount of protrusion of the mandible and aggravated disharmony appeared to be characteristics of female subjects.Conclusion： Skeletal class Ⅲ malocclusion is associated with significant degree of sexual dimorphism in craniofacial parameters and growth.It is essential to pay more attentions to the treatment plan and prognostic appraisal of skeletal class Ⅲ patients.

关 键 词：骨性Ⅲ类错 颅面形态 性别差异 

分 类 号：R783.5[医药卫生—口腔医学]