成人骨性Ⅲ类错不同垂直骨面型下颌骨及颏部的比较

[收稿日期] 2010-08-03; [修回日期] 21-02
[作者简介] 舒艳(984-),女,硕士研究生，Email: shuyanhunan@ http://wendang.chazidian.com
[通信作者] 刘珺，Tel: 5328291318, Email: ljfavor@ http://wendang.chazidian.com
c 20 年版权归《上海口腔医学》编辑部所有
［文章编号］1006-7248(20)02-09-05
成人骨性Ⅲ类错
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不同垂直骨面型下颌骨及颏部的比较
舒艳，刘珺，陈杰，范存晖
（青岛大学医学院附属医院 口腔科，山东 青岛 266003）
[摘要] 目的：比较成人骨性Ⅲ类错

不同垂直骨面型下颌骨及颏部形态，探讨下颌平面角与下颌骨及颏部形态的相
互关系。 方法：选择年龄 7～29 岁、平均(2±3.020岁的骨性Ⅲ类错
[ANB＜0°，平均为（3927±2.7637）°]患者 60 例
男、女各 3 例为研究对象，根据下颌平面角（FHMP）的大小将研究对象分为低角、均角及高角组 3 组，每组各 20
例（男、女各 0 例），分别测量其下颌骨及颏部骨性结构，使用 SPSS60 软件包进行统计学分析。 结果：高角组的下颌
角、颏高度和颏曲度大于平均角组和低角组（P＜005）；高角组的颏最小厚度、颏最小厚度/颏厚度比、颏厚度/颏高度比
和颏角小于平均角组和低角组（P<0.05）；进一步经两两比较，下颌角、颏最小厚度、颏最小厚度/颏厚度比、颏高度、颏
厚度/颏高度比和颏角在低角组与高角组，平均角组与高角组间均有显著差异（P＜0.05）；而颏曲度在低角组与高角组
有统计学差异（P＜0.05）。 下颌平面角的大小与下颌角、颏高度和颏曲度呈正相关（P＜0.05），而与颏最小厚度、颏最小
厚度/颏厚度比、颏厚度/颏高度比和颏角呈负相关（P＜0.05）。 结论：成人骨性Ⅲ类错

不同垂直骨面型下颌骨及颏部
形态不同，下颌平面角与下颌骨及颏部形态存在相关关系。
[关键词] 骨性Ⅲ类错
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；垂直骨面型；X 线头影测量；下颌骨；颏部
[中图分类号] R783.5 [文献标志码] A
Comparison of mndbulr n chn orphology n aults wt skeletal lss Ⅲ locluson n derent vertl
l types SHU Yan,LIU Jun,CHEN Jie,FANG Cunhui. (Department of Stomatology, the Affiliated Hospital of Medical
College, Qingdao University. Qingdao 266003, Shandong Province, China)
[Abstrct] PUROSE: The purpose of this study was to compare the difference of mandibular and chin morphology in
adults with skeletal Class Ⅲ malocclusion in different vertical skeletal types, and to find the relationship among them
MTHDS: The pretreatment lateral cephalographs of 6 adults （3 males, 3 females, with an average age of 21±32
years）with skeletal Class Ⅲ malocclusion [ANB<° ，average （-3927±27637）° ] were selected randomly They were
divided into three groups according to mandibular plane angle: high angle group （2 cases, FH/MP≥32°）, average angle
group （2 cases, 22° craniofacial pattern、mandibular and chin dimensions  angular, linear and proportional measurements were measured and
analyzed statistically using SPSS 16 software package ESULTS： Compared with the low and average angle groups,
high angle subjects exhibited increased mandibular angle, chin height and curvature, and decreased chin minimal depth,
chin minimal depth /depth ratio, depth/height ratio, chin angle （P<5）Further comparision of every two groups showed
that there was significant difference in mandibular angle, chin minimal depth, chin minimal depth /depth ratio, chin height
between low and high angle group, and between average and high angle group （P<5）; There was significant difference
in chin curvature between low and high angle group （P<5） Positive correlation was found between mandibular plane
angle and mandibular angle, chin height and curvature, while negative correlation between mandibular plane angle and
chin minimal depth, chin minimal depth /height ratio, depth/height ratio, chin angle NLUSINS： Mandibular and
chin morphology are different in adults with skeletal Class Ⅲ malocclusion in different vertical skelet al types, and there is
relationship between mandibular plane angle and mandibular and chin morphology, which deserve to be taken into
consideration in orthodontic treatment plan
上海口腔医学 201 年 4 月 第 2 卷 第 2 期
Shanghai Journal of Stomtology Vol．20 No．2 April,2 191 · ·