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学科主题口腔医学
In vivo mandibular elastic deformation during clenching on pivots
Jiang, T; Ai, M
关键词mandible deformation distortion clenching human
刊名JOURNAL OF ORAL REHABILITATION
2002-02-01
29期:2页:201-208
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
英文摘要

Lower rigidly connected long span bridges supported by natural abutments or implants sometimes become loose, come off, or fracture after a period of usage. Many reasons have been discussed for these failures. However, few researchers have shown the influence of mandibular elastic deformation on the abutments, although this influence is likely to produce a distortion force between the abutment and prosthesis. Therefore, this study measured the elastic deformation of the human mandibular arch during clenching on pivots by using charge-coupled device (CCD) cameras and an image analysing system. When the subjects clenched on the canines (unilaterally or bilaterally) or bilateral second molars, no mandibular deformation was found; whereas when the subjects clenched on the unilateral second molars, the mandibular arch on the non-pivot side moved upward and inward and the straight line distances between the right and left measurement points decreased by 0.2 mm. The magnitude of deformation is smaller than the depressible limit of periodontal membrane. This suggests that the influence of mandibular deformation on the connected prosthesis is negligible in the case of the natural root supported long span bridge but should probably be considered in the case of the implant supported bridge.

语种英语
WOS记录号WOS:000174572700014
引用统计
被引频次:13[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/400002259/60184
专题北京大学口腔医学院
作者单位1.Peking Univ, Sch Stomatol, Dept Prosthet Dent, Beijing 100081, Peoples R China
2.Tokyo Med & Dent Univ, Tokyo, Japan
推荐引用方式
GB/T 7714
Jiang, T,Ai, M. In vivo mandibular elastic deformation during clenching on pivots[J]. JOURNAL OF ORAL REHABILITATION,2002,29(2):201-208.
APA Jiang, T,&Ai, M.(2002).In vivo mandibular elastic deformation during clenching on pivots.JOURNAL OF ORAL REHABILITATION,29(2),201-208.
MLA Jiang, T,et al."In vivo mandibular elastic deformation during clenching on pivots".JOURNAL OF ORAL REHABILITATION 29.2(2002):201-208.
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