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学科主题口腔医学
A comparison of dental arch forms between Class II Division 1 and normal occlusion assessed by euclidean distance matrix analysis
Nie, Q; Lin, JX
刊名AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS
2006-04-01
DOI10.1016/j.ajodo.2005.12.012
129期:4页:528-535
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Dentistry, Oral Surgery & Medicine
研究领域[WOS]Dentistry, Oral Surgery & Medicine
关键词[WOS]MALOCCLUSION ; MAXILLARY ; SIZE ; ADULTHOOD ; GROWTH ; SHAPE ; AGE
英文摘要

The purpose of the study was to use euclidean distance matrix analysis to compare dental arch forms between subjects with Class II Division 1 malocclusions and normal occlusions. Methods: The sample consisted of 60 subjects with Class II Division 1 malocclusions and 60 subjects with normal occlusions, all between 13 and 17 years of age. Fourteen landmarks, corresponding to cusp tips and incisor edges, were identified on the dental casts with a 3-dimensional measuring machine. All possible linear distances between pairs of landmarks in an arch were computed, and arch-form differences between Class II Division 1 and normal-occlusion subjects were tested by euclidean distance matrix analysis. Results: In both sexes, the maxillary arches of the Class II Division 1 subjects were larger than the arches of the normal-occlusion subjects (1.8% and 2.7% larger for girls and boys, respectively), and arch shape was also significantly different (P <.001). The posterior teeth contributed to the shape difference between 2 groups more than the anterior teeth, moreover the main factor was narrow maxillary posterior arch width in the Class II Division 1 subjects. The mandibular arches of the Class II Division 1 subjects were also slightly larger, and arch shape was not significantly different regardless of sex. Conclusions: Expanding the maxillary posterior arch width in Class II Division 1 subjects might be an important method to harmonize maxillary and mandibular arch forms.

语种英语
WOS记录号WOS:000237032300017
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/66004
Collection北京大学口腔医学院_牙周科
作者单位1.Peking Univ, Sch Stomatol, Dept Orthodont, Beijing 100081, Peoples R China
2.Peking Univ, Ctr Craniofacial Growth & Dev Res, Beijing 100081, Peoples R China
Recommended Citation
GB/T 7714
Nie, Q,Lin, JX. A comparison of dental arch forms between Class II Division 1 and normal occlusion assessed by euclidean distance matrix analysis[J]. AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS,2006,129(4):528-535.
APA Nie, Q,&Lin, JX.(2006).A comparison of dental arch forms between Class II Division 1 and normal occlusion assessed by euclidean distance matrix analysis.AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS,129(4),528-535.
MLA Nie, Q,et al."A comparison of dental arch forms between Class II Division 1 and normal occlusion assessed by euclidean distance matrix analysis".AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS 129.4(2006):528-535.
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