女性青少年下颌后缩型安氏Ⅱ~1错颏部形态特征的研究  被引量:5

Study on chin morphology characteristics in female adolescents with Angle class Ⅱ~1 malocclusion by mandibular retrusion

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作  者:肖遥[1] 罗茂璇[2] 黄丽[1] 

机构地区:[1]泸州医学院附属口腔医院正畸科,四川泸州646000 [2]泸州医学院附属口腔医院口腔颌面外科,四川泸州646000

出  处:《重庆医学》2012年第26期2703-2705,共3页Chongqing medicine

摘  要:目的探讨不同垂直骨面型的青少年下颌后缩型安氏Ⅱ1错颏部的骨性形态特征。方法随机选取60例下颌后缩型安氏Ⅱ1错的女性青少年,平均年龄(12.56±0.67)岁,将其分为高角、低角和均角3组,各20例。拍摄X线头颅侧位片,进行头影测量分析,比较其颏部的骨性形态。结果各组患者在颏高度、颏曲度、颏角、颏厚度/颏高度和颏凹陷上的差异均有统计学意义(P<0.05)。高角组颏高度、颏曲度和颏角最大,颏厚度/颏高度和颏凹陷最小;低角组颏高度、颏曲度最小,颏厚度/颏高度和颏凹陷最大,均角组颏角最小。结论下颌后缩型安氏Ⅱ1错不同垂直骨面型的颏部骨性形态不同,正畸治疗时需予以考虑。Objective To evaluate the chin bony morphological characteristics in adolescents with Angle class Ⅱ1 malocclusion by mandibular retrusion in different vertical facial types.Methods 60 female adolescents with Angle class Ⅱ1 malocclusion by mandibular retrusion were randomly selected with an average age of(12.56±0.67) years and divided into 3 groups according to mandibular plane angle:high angle group,average angle group and low angle group,20 cases in each group.Cepholagrams were taken and cepholametrics were employed for comparing the chin bony morphology.Results There were significant differences in chin height,curvature,chin angle,chin depth/height ratio and concavity among various groups(P〈0.05).Compared with the average and low angle groups,the high angle group exhibited the maximal chin height,curvature and chin angle,and the minimal chin depth/height ratio and concavity(P〈0.05).The low angle group exhibited the minimal chin height and curvature,maximal chin depth/height ratio and concavity,and the average angle group exhibited the minimal chin angle.Conclusion Chin morphology is different in adolescents with Angle class Ⅱ1 malocclusion by mandibular retrusion in different vertical facial types,which should be taken into consideration in orthodontics treatment.

关 键 词:错 安氏Ⅱ类  青少年 垂直骨面型 

分 类 号:R783.5[医药卫生—口腔医学]

 

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