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学科主题口腔医学
Compensation trends of the angulation of first molars: retrospective study of 1 403 malocclusion cases
Su, Hong1; Han, Bing1; Li, Sa2; Na, Bin3,4; Ma, Wen5; Xu, Tian-Min1
关键词Angle classification angulation compensation first molar growth stages malocclusion sagittal skeletal patterns vertical skeletal patterns
刊名INTERNATIONAL JOURNAL OF ORAL SCIENCE
2014-09-01
DOI10.1038/ijos.2014.15
6期:3页:175-181
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]HEAD FILM MEASUREMENTS ; ANTERIOR OPEN-BITE ; PREMOLAR EXTRACTIONS ; CEPHALOMETRIC ANALYSIS ; NORMAL OCCLUSION ; GROWTH-PATTERNS ; TOOTH MOVEMENT ; RELIABILITY ; IMPLANT
英文摘要

We investigated the compensatory trends of mesiodistal angulation of first molars in malocclusion cases. We compared differences in the angulation of first molars in different developmental stages, malocclusion classifications and skeletal patterns. The medical records and lateral cephalogrammes of 1 403 malocclusion cases taken before treatment were measured to evaluate compensation of molar angulation in relation to the skeletal jaw. The cases were stratified by age, Angle classification and skeletal patterns. Differences in the mesiodistal angulation of the first molars were compared among the stratifications. We observed three main phenomena. First, angulation of the upper first molar varied significantly with age and tipped most distally in cases aged <12 years and least distally in cases aged >16 years. The lower first molar did not show such differences. Second, in Angle Class II or skeletal Class II cases, the upper first molar was the most distally tipped, the lower first molar was the most mesially tipped, and opposite angulation compensation was observed in Class III cases. Third, in high-angle cases, the upper and lower first molars were the most distally tipped, and opposite angulation compensation was observed in low-angle cases. These data suggest that the angulation of the molars compensated for various growth patterns and malocclusion types. Hence, awareness of molar angulation compensation would help to adjust occlusal relationships, control anchorage and increase the chances of long-term stability.

语种英语
WOS记录号WOS:000341275600008
Citation statistics
Cited Times:3[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/400002259/66229
Collection北京大学口腔医学院_牙周科
作者单位1.Peking Univ, Grad Sch, Beijing 100081, Peoples R China
2.Peking Univ, Hosp Stomatol, Beijing 100081, Peoples R China
3.Arrail Int Dent Clin, Beijing, Peoples R China
4.Shenzhen Peoples Hosp, Dept Stomatol, Shenzhen, Peoples R China
5.Peking Univ, Sch & Hosp Stomatol, Dept Orthodont, Beijing 100081, Peoples R China
Recommended Citation
GB/T 7714
Su, Hong,Han, Bing,Li, Sa,et al. Compensation trends of the angulation of first molars: retrospective study of 1 403 malocclusion cases[J]. INTERNATIONAL JOURNAL OF ORAL SCIENCE,2014,6(3):175-181.
APA Su, Hong,Han, Bing,Li, Sa,Na, Bin,Ma, Wen,&Xu, Tian-Min.(2014).Compensation trends of the angulation of first molars: retrospective study of 1 403 malocclusion cases.INTERNATIONAL JOURNAL OF ORAL SCIENCE,6(3),175-181.
MLA Su, Hong,et al."Compensation trends of the angulation of first molars: retrospective study of 1 403 malocclusion cases".INTERNATIONAL JOURNAL OF ORAL SCIENCE 6.3(2014):175-181.
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