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IR@PKUHSC  > 北京大学口腔医学院  > 牙周科  > 期刊论文
学科主题: 口腔医学
题名:
Archform Comparisons between Skeletal Class II and III Malocclusions
作者: Zou, Wei1; Wu, Jiaqi1; Jiang, JiuHui1; Xu, TianMin1; Li, CuiYing2
刊名: PLOS ONE
发表日期: 2014-06-27
DOI: 10.1371/journal.pone.0100655
卷: 9, 期:6
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
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
项目资助者: National Natural Science Foundation of China ; Beijing Science and Technology Committee
WOS记录号: WOS:000338512200048
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/58289
Appears in Collections:北京大学口腔医学院_牙周科_期刊论文

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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

Recommended Citation:
Zou, Wei,Wu, Jiaqi,Jiang, JiuHui,et al. Archform Comparisons between Skeletal Class II and III Malocclusions[J]. PLOS ONE,2014,9(6).
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