biomechanical effects of various bone-implant interfaces on the stability of orthodontic miniscrews: a finite element study

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2017
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Abstract
Introduction. Osseointegration is required for prosthetic implant, but the various bone-implant interfaces of orthodontic miniscrews would be a great interest for the orthodontist. There is no clear consensus regarding the minimum amount of bone-implant osseointegration required for a stable miniscrew. The objective of this study was to investigate the influence of different bone-implant interfaces on the miniscrew and its surrounding tissue. Methods. Using finite element analysis, an advanced approach representing the bone-implant interface is adopted herein, and different degrees of bone-implant osseointegration were implemented in the FE models. A total of 26 different FE analyses were performed. The stress/strain patterns were calculated and compared, and the displacement of miniscrews was also evaluated. Results. The stress/strain distributions are changing with the various bone-implant interfaces. In the scenario of 0% osseointegration, a rather homogeneous distribution was predicted. After 15% osseointegration, the stress/strains were gradually concentrated on the cortical bone region. The miniscrew experienced the largest displacement under the no osseointegra condition. The maximum displacement decreases sharply from 0% to 3% and tends to become stable. Conclusion. From a biomechanical perspective, it can be suggested that orthodontic loading could be applied on miniscrews after about 15% osseointegration without any loss of stability.
Reference Key
tan2017journalbiomechanical Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Fabing Tan, Chao Wang, Chongshi Yang, Yuanding Huang, Yubo Fan
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Journal journal of political philosophy
Year 2017
DOI
10.1155/2017/7495606
URL
http://dx.doi.org/10.1155/2017/7495606
Keywords
medicine (general)medical technology

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