髁突形态与骨性Ⅲ类不同垂直骨面型患者生长发育的相关性  

Relation of condylar morphology with different vertical facial types in the development of patients with skeletal Ⅲ malocclusions

作　　者：王欢[1] 丁寅[1] 

机构地区：[1]西安第四军医大学口腔医学院正畸科,710032

出　　处：《实用口腔医学杂志》2006年第6期759-762,共4页Journal of Practical Stomatology

摘　　要：目的:探讨髁突形态与骨性Ⅲ类不同垂直骨面型患者生长发育的关系。方法:采用计算机辅助X线头影测量技术,对不同年龄组骨性Ⅲ类不同垂直骨面型患者的全口曲面断层片进行测量,比较各组间髁突形态特点。结果:高角患者中:升支高度(RH)值在不同年龄段均有显著性差异(P<0.001),成人组>青少年组>儿童组(P<0.05);髁突上部高度(h)值、h/RH值、H/W值在不同年龄组中有显著性差异(P<0.05),且成人组分别大于青少年组和儿童组。均角患者中:h值、RH值均有显著性差异(P<0.001),且成人组分别大于青少年组和儿童组;h/RH值、H/W值在各年龄段间无统计学差异(P>0.05)。低角患者中:h值、RH值在各组中均有显著性差异(P<0.001),且成人组分别大于青少年组和儿童组;h/RH值在各年龄段间无统计学差异(P>0.05);H/W值在不同年龄组间有显著性差异(P<0.01),且儿童组和成人组分别大于青少年组。结论:髁突形态在骨性Ⅲ类不同垂直骨面型患者生长发育过程中存在差异,这可能与他们不同的生长型有关。Objective： To study the relation of condylar morphology with different vertical facial types in the development of patients with skeletal Ⅲ malocclusions. Methods ：180 cases with skeletal Ⅲ malocclusion were divided into children（5 - 11 years old）, adolescence（ 12 - 17 years old） and aduh（ 18 -30 years old） groups with 60 cases in each group. Orthopantomograms of the patients with different vertical facial types were retrospectively investigated by computerized eephalometric analysis. Condylar morphology were compared among different age groups of the same vertical facial type, Results：In patients with high angle, ramus height（RH） was getting bigger with ageing （ P 〈 0.001 ）. The upper condylar height （ h ）, h/RH, condylar height （H）/condylar neck width （ w ） in adult group was bigger than those in adolescence or in children （P 〈 0.05 ）. In patients with even angle h and RH in adult group was bigger than those in adolescence or in children（P 〈 0. 001 ） , h/RH and H/W were not significantly different among age groups（ P 〉 0.05 ）. In patients with low angle h and RH in adult group were bigger than those in adolescence or in ehildren（P 〈0.001 ）. H/W in adolescence was smaller than that in children or adult（ P 〈 0.01 ）. Conclusions：In patients of skeletal Ⅲ malocelusions with different vertical facial types, there are statistical differences in condylar morphology in different development stages, which might be due to different growth of mandibular.

关 键 词：骨性Ⅲ类 垂直骨面型 髁突形态 生长发育 

分 类 号：R783.5[医药卫生—口腔医学]