应用Coben分析法评价前方牵引治疗上颌发育不足的临床疗效

目的应用Coben分析法评价前方牵引治疗上颌发育不足的临床疗效,阐明Coben分析法在骨性安氏Ⅲ类错畸形致病机制的诊断及矫治计划制定中的优势。方法对120例处在生长发育期的由上颌发育不足所致的骨性安氏Ⅲ类错患者行上颌前方牵引治疗,分别对上颌前方牵引矫治前、后的头颅定位侧位片采用Coben分析法和北医大分析法进行头影测量分析。结果上颌前方牵引后,Coben分析法测量结果中,面中1/3深度增加且Ptm-A段的变化有统计学差异,面下1/3深度减小,颜面高度增加(P〈0.001);北医大分析法测量结果中,SNA、ANB、U1/NA、U1/SN、MP/SN、Y轴角显著增加(P〈0.001),SNB、U1...

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Published in华西口腔医学杂志 Vol. 33; no. 1; pp. 58 - 62
Main Author 庄金良 李勋 姜雨君 徐山山 丁晓华 陈远萍
Format Journal Article
LanguageChinese
Published 吉林大学口腔医院正畸科,长春,130021 2015
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ISSN1000-1182
DOI10.7518/hxkq.2015.01.013

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Summary:目的应用Coben分析法评价前方牵引治疗上颌发育不足的临床疗效,阐明Coben分析法在骨性安氏Ⅲ类错畸形致病机制的诊断及矫治计划制定中的优势。方法对120例处在生长发育期的由上颌发育不足所致的骨性安氏Ⅲ类错患者行上颌前方牵引治疗,分别对上颌前方牵引矫治前、后的头颅定位侧位片采用Coben分析法和北医大分析法进行头影测量分析。结果上颌前方牵引后,Coben分析法测量结果中,面中1/3深度增加且Ptm-A段的变化有统计学差异,面下1/3深度减小,颜面高度增加(P〈0.001);北医大分析法测量结果中,SNA、ANB、U1/NA、U1/SN、MP/SN、Y轴角显著增加(P〈0.001),SNB、U1/L1显著减小(P〈0.001),L1/MP减小(P〈0.05)。结论上颌前方牵引疗法对以Coben分析法中Ptm-A段过小为主要机制的生长发育期骨性安氏Ⅲ类错畸形有显著疗效;Coben分析法是一种比较直观、容易理解的头影测量分析方法,在错畸形尤其是骨性安氏Ⅲ类错的诊断中具有临床意义。
Bibliography:cephalometric analysis; Coben analysis; maxillary maldevelopment; maxillary protraction
51-1169/R
Objective We aims to evaluate the therapeutic effect of maxillary protraction on maxillary maldevelopment using Coben analysis to illustrate the advantages of Coben analysis in identifying pathogenic mechanisms and in designing treatment plans for Class Ⅲ malocclusions. Methods A total of 120 patients were diagnosed to have skeletal Class Ⅲ maloc- clusions with maxillary maldevelopment. These patients were selected as the subjects of the present research. Maxillary protraction was exerted to promote maxilla growth. Cephalometric analysis was conducted by using Coben analysis and angle analyses of Beijing Medical University to collect data before and after maxillary protraction. Results According to Cohen analysis measurements, the height of facies cranii increased after maxillary protraction. The depth of lower face decreased, whereas that of mid-face increased and the Ptm-A value increased significantly in the mid
ISSN:1000-1182
DOI:10.7518/hxkq.2015.01.013