Finite Element Analysis of Bone Stress around Micro-Implants of Different Diameters and Lengths with Application of a Single or Composite Torque Force.

<h4>Background</h4>Stress on the bone surrounding dental micro-implants affects implant success.<h4>Purpose</h4>To compare the stress on the bone surrounding a micro-implant after application of a single force (SF) of 200 g or a composite force (CF) of 200 g and 6 N.mm torque...

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Main Authors: Ying-juan Lu, Shao-hai Chang, Jian-tao Ye, Yu-shan Ye, Yan-song Yu
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0144744&type=printable
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author Ying-juan Lu
Shao-hai Chang
Jian-tao Ye
Yu-shan Ye
Yan-song Yu
author_facet Ying-juan Lu
Shao-hai Chang
Jian-tao Ye
Yu-shan Ye
Yan-song Yu
author_sort Ying-juan Lu
collection DOAJ
description <h4>Background</h4>Stress on the bone surrounding dental micro-implants affects implant success.<h4>Purpose</h4>To compare the stress on the bone surrounding a micro-implant after application of a single force (SF) of 200 g or a composite force (CF) of 200 g and 6 N.mm torque.<h4>Materials and methods</h4>Finite element models were developed for micro-implant diameters of 1.2, 1.6, and 2.0 mm, and lengths of 6, 8, 10, and 12 mm and either a SF or CF was applied. The maximum equivalent stress (Max EQS) of the bone surrounding the micro-implant was determined, and the relationships among type of force, diameter, and length were evaluated.<h4>Results</h4>The Max EQS of the CF exceeded that of the SF (P< 0.05). The effect of force on stress was related to implant diameter, but not to implant length. The larger CF led to greater instability of the micro-implant and the effect was most pronounced at an implant diameter of 1.2 mm. The use of implant diameters of 1.6 mm and 2.0 mm produced no significant difference in implant stability when either a CF or SF was applied.<h4>Conclusion</h4>When considering the use of an implant to perform three-dimensional control on the teeth, the implant diameter chosen should be > 1.2 mm.
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spelling doaj-art-a1b0edce2cab4485891041c26fbd9c5a2025-08-20T02:15:38ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-011012e014474410.1371/journal.pone.0144744Finite Element Analysis of Bone Stress around Micro-Implants of Different Diameters and Lengths with Application of a Single or Composite Torque Force.Ying-juan LuShao-hai ChangJian-tao YeYu-shan YeYan-song Yu<h4>Background</h4>Stress on the bone surrounding dental micro-implants affects implant success.<h4>Purpose</h4>To compare the stress on the bone surrounding a micro-implant after application of a single force (SF) of 200 g or a composite force (CF) of 200 g and 6 N.mm torque.<h4>Materials and methods</h4>Finite element models were developed for micro-implant diameters of 1.2, 1.6, and 2.0 mm, and lengths of 6, 8, 10, and 12 mm and either a SF or CF was applied. The maximum equivalent stress (Max EQS) of the bone surrounding the micro-implant was determined, and the relationships among type of force, diameter, and length were evaluated.<h4>Results</h4>The Max EQS of the CF exceeded that of the SF (P< 0.05). The effect of force on stress was related to implant diameter, but not to implant length. The larger CF led to greater instability of the micro-implant and the effect was most pronounced at an implant diameter of 1.2 mm. The use of implant diameters of 1.6 mm and 2.0 mm produced no significant difference in implant stability when either a CF or SF was applied.<h4>Conclusion</h4>When considering the use of an implant to perform three-dimensional control on the teeth, the implant diameter chosen should be > 1.2 mm.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0144744&type=printable
spellingShingle Ying-juan Lu
Shao-hai Chang
Jian-tao Ye
Yu-shan Ye
Yan-song Yu
Finite Element Analysis of Bone Stress around Micro-Implants of Different Diameters and Lengths with Application of a Single or Composite Torque Force.
PLoS ONE
title Finite Element Analysis of Bone Stress around Micro-Implants of Different Diameters and Lengths with Application of a Single or Composite Torque Force.
title_full Finite Element Analysis of Bone Stress around Micro-Implants of Different Diameters and Lengths with Application of a Single or Composite Torque Force.
title_fullStr Finite Element Analysis of Bone Stress around Micro-Implants of Different Diameters and Lengths with Application of a Single or Composite Torque Force.
title_full_unstemmed Finite Element Analysis of Bone Stress around Micro-Implants of Different Diameters and Lengths with Application of a Single or Composite Torque Force.
title_short Finite Element Analysis of Bone Stress around Micro-Implants of Different Diameters and Lengths with Application of a Single or Composite Torque Force.
title_sort finite element analysis of bone stress around micro implants of different diameters and lengths with application of a single or composite torque force
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0144744&type=printable
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