Bivariate evaluation of cylinder implant diameter and length: a three-dimensional finite element analysis

Journal of Prosthodontics : Official Journal of the American College of Prosthodontists
Liang KongBaolin Liu

Abstract

To evaluate continuous and simultaneous variations of implant diameter and length for an experimental cylinder implant. A finite element model of a mandible segment with implant was created. The range of implant diameter (D) was set from 2.5 to 5.0 mm, and that of implant length (L) from 6.0 to 16.0 mm. The maximum Von Mises stresses in the mandible were evaluated, and the sensitivity of the stresses in the mandible to the variables was also evaluated. Under axial load, the maximum von Mises stresses in cortical and cancellous bones decreased by 73.3% and 69.4%, respectively, with D and L increasing. Under buccolingual load, those decreased 83.8% and 79.2%, respectively. When D exceeded 3.9 mm and L exceeded 10.0 mm, the tangent slope rate of the maximum von Mises stress response curve ranged from -1 to 0. The variation of the maximum von Mises stresses in the mandible was more sensitive to D than to L. Buccolingual force is apt to be influenced by the two implant parameters; implant diameter and length favor stress distribution in cortical bone and cancellous bone, respectively. Implant diameter exceeding 3.9 mm and implant length exceeding 10.0 mm are the optimal choice for type B/2 bone in a cylinder implant. The implant dia...Continue Reading

References

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Citations

Aug 7, 2009·International Journal of Oral and Maxillofacial Surgery·T LiY Ding
Nov 4, 2008·The British Journal of Oral & Maxillofacial Surgery·Yingying SunBaolin Liu
Sep 16, 2014·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Ning KangGuo-Min Ou
Nov 12, 2013·Computers in Biology and Medicine·Kristina Haase, Gholamreza Rouhi
Aug 16, 2016·Biomedizinische Technik. Biomedical Engineering·Zhihong MaoGuo Cao
Nov 19, 2011·Clinical Oral Implants Research·Young-Il KangIk-Sang Moon
Oct 17, 2019·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Mohammad Reza Niroomand, Masoud Arabbeiki
Nov 1, 2012·The Journal of Oral Implantology·Ana Paula MartiniRodolfo Bruniera Anchieta
Apr 12, 2013·The Journal of Oral Implantology·Jessica Mie Ferreira Koyama TakahashiMarcelo Ferraz Mesquita
Jul 1, 2020·Computer Methods in Biomechanics and Biomedical Engineering·Mohammad Reza Niroomand, Masoud Arabbeiki
Jan 14, 2021·Computer Methods in Biomechanics and Biomedical Engineering·Sameh ElleuchFakhreddine Dammak

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