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学科主题口腔医学
Archform Comparisons between Skeletal Class II and III Malocclusions
Zou, Wei1; Wu, Jiaqi1; Jiang, JiuHui1; Xu, TianMin1; Li, CuiYing2
刊名PLOS ONE
2014-06-27
DOI10.1371/journal.pone.0100655
9期:6
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Multidisciplinary Sciences
资助者National Natural Science Foundation of China ; Beijing Science and Technology Committee ; National Natural Science Foundation of China ; Beijing Science and Technology Committee
研究领域[WOS]Science & Technology - Other Topics
关键词[WOS]BEAM COMPUTED-TOMOGRAPHY ; DIVISION 1 MALOCCLUSION ; HUMAN DENTAL ARCH ; NORMAL OCCLUSION ; BUCCOLINGUAL INCLINATION ; WIDTHS ; FORMS
英文摘要

The purpose of this cross-sectional research was to explore the relationship of the mandibular dental and basal bone archforms between severe Skeletal Class II (SC2) and Skeletal Class III (SC3) malocclusions. We also compared intercanine and intermolar widths in these two malocclusion types. Thirty-three virtual pretreatment mandibular models (Skeletal Class III group) and Thirty-five Skeletal Class II group pretreatment models were created with a laser scanning system. FA (the midpoint of the facial axis of the clinical crown) and WALA points (the most prominent point on the soft-tissue ridge) were employed to produce dental and basal bone archforms, respectively. Gained scatter diagrams of the samples were processed by nonlinear regression analysis via SPSS 17.0. The mandibular dental and basal bone intercanine and intermolar widths were significantly greater in the Skeletal Class III group compared to the Skeletal Class II group. In both groups, a moderate correlation existed between dental and basal bone arch widths in the canine region, and a high correlation existed between dental and basal bone arch widths in the molar region. The coefficient of correlation of the Skeletal Class III group was greater than the Skeletal Class II group. Fourth degree, even order power functions were used as best-fit functions to fit the scatter plots. The radius of curvature was larger in Skeletal Class III malocclusions compared to Skeletal Class II malocclusions (r(WALA3) > r(WALA2) > r(FA3) > r(FA2)). In conclusion, mandibular dental and basal intercanine and intermolar widths were significantly different between the two groups. Compared with Skeletal Class II subjects, the mandibular archform was more flat for Skeletal Class III subjects.

语种英语
所属项目编号81171006 ; Z121107001012024
资助者National Natural Science Foundation of China ; Beijing Science and Technology Committee ; National Natural Science Foundation of China ; Beijing Science and Technology Committee
WOS记录号WOS:000338512200048
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/58289
专题北京大学口腔医学院_牙周科
作者单位1.Peking Univ, Sch & Hosp Stomatol, Dept Orthodont, Beijing 100871, Peoples R China
2.Peking Univ, Sch & Hosp Stomatol, Dept Oral Pathol, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714
Zou, Wei,Wu, Jiaqi,Jiang, JiuHui,et al. Archform Comparisons between Skeletal Class II and III Malocclusions[J]. PLOS ONE,2014,9(6).
APA Zou, Wei,Wu, Jiaqi,Jiang, JiuHui,Xu, TianMin,&Li, CuiYing.(2014).Archform Comparisons between Skeletal Class II and III Malocclusions.PLOS ONE,9(6).
MLA Zou, Wei,et al."Archform Comparisons between Skeletal Class II and III Malocclusions".PLOS ONE 9.6(2014).
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