The influence of implant body and thread design of mini dental implants on the loading of surrounding bone: a finite element analysis

Arpad Toth; Istabrak Hasan; Christoph Bourauel; Torsten Mundt; Reiner Biffar; Friedhelm Heinemann

doi:10.1515/bmt-2016-0002

Article

The influence of implant body and thread design of mini dental implants on the loading of surrounding bone: a finite element analysis

Arpad Toth , Istabrak Hasan , Christoph Bourauel , Torsten Mundt , Reiner Biffar and Friedhelm Heinemann

Published/Copyright: March 30, 2017

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From the journal Biomedical Engineering / Biomedizinische Technik Volume 62 Issue 4

Abstract

Mini dental implants (MDI) were once thought of as transitional implants for treatment in selected clinical situations. Their reduced diameter makes them a very attractive option for patients with poor tolerance to maxillary and mandibular prostheses. Using the method of finite element analysis, a series of different designed MDI prototypes have been investigated. The prototypes differed in the geometry of implant body and/or design of implant head. The load transfer of the implant prototypes to the idealised alveolar bone has been regarded and the prototypes have been compared to each other and to a number of standard commercial implants. The prototype models have been virtually placed in the idealised bone with a cortical thickness of 1.5 mm and loaded laterally 30° from the implant's long axis. The condition of immediate loading was assumed for the numerical analyses through defining a contact interface between the implant and bone bed. The numerical analysis in this study showed that the design of the investigated prototype MDI of group 3 (mini-ball head) is the most advantageous design.

Keywords: displacement; finite element analysis; implant geometry; mini dental implants; stress

Corresponding author: Dr. rer. nat. Dr. med dent. Istabrak Hasan, MSc B.D.S., Endowed Chair of Oral Technology, Department of Prosthetic Dentistry, Preclinical Education and Materials Science, Dental School, Rheinische Friedrich-Wilhelms University, Welschnonnenstr. 17, 53111 Bonn, Germany, Phone: +49 228 287 22388

Arpad Toth and Istabrak Hasan: These authors claim for equal authorship.

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Received: 2016-1-2

Accepted: 2016-11-15

Published Online: 2017-3-30

Published in Print: 2017-8-28

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Articles in the same Issue

https://doi.org/10.1515/bmt-2016-0002

Keywords for this article

displacement; finite element analysis; implant geometry; mini dental implants; stress