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学科主题口腔医学
Comparison of extraction versus nonextraction orthodontic treatment outcomes for borderline Chinese patients
Xu, TM; Liu, Y; Yang, MZ; Huang, W
刊名AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS
2006-05-01
DOI10.1016/j.ajodo.2005.12.007
129期:5页:672-677
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]CLASS-II PATIENTS ; PREMOLAR-EXTRACTION ; FACIAL PROFILES ; INDEX ; AMERICANS ; JUDGMENT ; ADULTS ; BEAUTY
英文摘要

Introduction: The purpose of this study was to compare orthodontic treatment outcomes in Chinese patients with borderline problems treated with and without extractions.

Methods: Records of 39 borderline patients treated at the Faculty Clinic of the Peking University Orthodontic Department were evaluated retrospectively by 5 associate professors. Sixteen patients had been treated without extractions, and 23 had 4 first or second premolars extracted. Each judge evaluated the posttreatment records independently for tooth alignment, overbite, overjet, midline symmetry, lateral occlusion, and facial profile, and rated them on a scale from 1 to 5.

Results: The only statistically significant difference between the extraction and nonextraction groups was for facial profile, with the judges preferring the extraction profiles. Fifteen soft-tissue cephalometric variables were measured to determine the source of the difference, and 6 showed statistically significant differences. When profile changes from pretreatment to posttreatment were examined, significant differences in treatment-associated changes between extraction and nonextraction groups were all related to the lower lip and chin.

Conclusions: In this sample of Chinese borderline orthodontic patients, Chinese clinicians had a statistically significant preference for the facial profiles of the extraction patients, but no statistically significant preferences for tooth alignment, overbite, overjet, midline symmetry, or posterior occlusion. Extraction treatment increases the inclination of the chin and reduces protrusion of the lower lip compared with nonextraction treatment, and this might explain the difference.

语种英语
WOS记录号WOS:000237486400015
引用统计
被引频次:16[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/400002259/59596
专题北京大学口腔医学院_牙周科
作者单位Peking Univ, Sch Stomatol, Dept Orthodont, Beijing 100081, HaiDian Dist, Peoples R China
推荐引用方式
GB/T 7714
Xu, TM,Liu, Y,Yang, MZ,et al. Comparison of extraction versus nonextraction orthodontic treatment outcomes for borderline Chinese patients[J]. AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS,2006,129(5):672-677.
APA Xu, TM,Liu, Y,Yang, MZ,&Huang, W.(2006).Comparison of extraction versus nonextraction orthodontic treatment outcomes for borderline Chinese patients.AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS,129(5),672-677.
MLA Xu, TM,et al."Comparison of extraction versus nonextraction orthodontic treatment outcomes for borderline Chinese patients".AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS 129.5(2006):672-677.
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