三类骨性错牙合&nbsp; 下颌牙弓和基骨弓的测量及相关性分析

林思豆; 吴补领; 孙风阳; 田智慧; 钟恩意; 慈博雯; 黄文华

doi:10.13418/j.issn.1001-165x.2016.02.011

中国临床解剖学杂志 ›› 2016, Vol. 34 ›› Issue (2) : 171-175. DOI: 10.13418/j.issn.1001-165x.2016.02.011

断层影像解剖

三类骨性错牙合下颌牙弓和基骨弓的测量及相关性分析

林思豆¹，　吴补领²，　孙风阳²，　田智慧²，　钟恩意¹，　慈博雯^1,2，　黄文华¹

作者信息 +

Measurementand correlation analysis between the mandibular dental and basal arch forms in three skeletalmalocclusions

LIN Si-dou1， WU Bu-lin2， SUN Feng-yang2， TIAN Zhi-hui2， ZHONG En-yi1，CI Bo-wen1,2，HUANG Wen-hua1

Author information +

文章历史 +

摘要

目的　探讨骨性错牙合　与个别正常牙合下颌牙弓、基骨弓的形态差异及相关性。方法　27例骨性Ⅰ类错牙合　、 30例骨性Ⅱ类错牙合　、20例骨性Ⅲ类错牙合　及27例个别正常牙合　于正畸治疗前进行锥形束CT扫描，获得下颌虚拟模型，分别测量牙弓、基骨弓的长、宽度，分析指标间的差异及相关性，并拟合牙弓、基骨弓的形态曲线。结果　Ⅲ类错牙合　的基骨弓长、宽度显著大于其余三组，牙弓宽度显著大于Ⅱ类错牙合　，Ⅱ类错牙合的前牙牙弓长度显著大于其余三组。牙弓、基骨弓在尖牙间、磨牙间宽度及全牙段长度的相关系数r分别为0.818、0.836、0.818，前牙长度r为0.395。结论　Ⅲ类错牙合基骨发育过度，Ⅱ类错牙合　前牙弓最长以弥补其基骨发育不足；牙弓与基骨弓存在相关。

Abstract

Objective 　To investigate the differences and correlations between the mandibular dental and basal arch forms in subjects with normal occlusion and those of skeletal malocclusions. 　Methods　Virtual pretreatment mandibular models of patients (27 Class I,30 Class II, 20 Class III and 27 normal occlusion) were selected to measure widths and lengths of dental and basal arch. The differences and correlations between indicators were analyzed, and then fitting curves of dental and basal arch were made.Results　The mandibular basal arch widths and lengths were significantly greater in the Class III group compared to other groups, the dental arch widths were significantly greater in the Class Ⅲ group compared to the Class II group, the anterior dental lengths were significantly greater in the Class Ⅱ group compared to other groups. The widths in canine, molar regions and the whole arch lengths of dental and basal arch demonstrated high correlation coefficient (r=0.818, 0.836, 0.818), the anterior arch lengths demonstrated low correlation coefficient(r=0.395).　Conclusions　The basal arch of Class III group is overgrown, while the anterior arch lengths of Class II group are largest to cover its basal arch hypoplasia. The dental and basal arch demonstrates correlation.

导出引用

林思豆,吴补领,孙风阳,田智慧,钟恩意,慈博雯,黄文华. 三类骨性错牙合下颌牙弓和基骨弓的测量及相关性分析[J]. 中国临床解剖学杂志. 2016, 34(2): 171-175 https://doi.org/10.13418/j.issn.1001-165x.2016.02.011

LIN Si-dou,WU Bu-lin,SUN Feng-yang,TIAN Zhi-hui,ZHONG En-yi,CI Bo-wen,HUANG Wen-hua. Measurementand correlation analysis between the mandibular dental and basal arch forms in three skeletalmalocclusions[J]. Chinese Journal of Clinical Anatomy. 2016, 34(2): 171-175 https://doi.org/10.13418/j.issn.1001-165x.2016.02.011

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