The Open Dentistry Journal




ISSN: 1874-2106 ― Volume 13, 2019

Influence of Implant Design (Cylindrical and Conical) in the Load Transfer Surrounding Long (13mm) and Short (7mm) Length Implants: A Photoelastic Analysis



Sergio Alexandre Gehrke1, 4, *, Victor Lourenço Frugis2, Jamil Awad Shibli3, Maria Piedad Ramirez Fernandez4, José Eduardo Maté Sánchez de Val4, José Luis Calvo Girardo4, Silvio Taschieri5, Stefano Corbella6
1 Universidad Católica San Antonio de Murcia (UCAM), Biotecnos – Technology and Science, Department of Research, Santa Maria, Brazil
2 Paulista Association of Dentistry, São Bernardo do Campo, Brazil
3 Department of Periodontology and Oral Implantology, Dental Research Division, University of Guarulhos, Guarulhos, SP, Brazil
4 Universidad Católica San Antonio de Murcia (UCAM), Biotecnos – Technology and Science, Department of Research, Santa Maria, Brazil
5 Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano; IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
6 IRCCS Istituto Ortopedico Galeazzi Università degli Studi di Milano, Milan, Italy

Abstract

Purpose:

This study compared the influence of implant design (cylindrical and conical) in the load transfer on bone surrounding 13mm and 7mm length implants under simulated occlusal loading, using photoelastic analysis.

Method:

Dental implants of 4mm diameter were divided into four groups, which varied in length and design: Group 1- standard (13 mm) cylindrical implant; Group 2 - standard conical implant; Group 3 – short (7 mm) cylindrical implant, and Group 4 - short conical implant. After the inclusion of the implant models in a photoelastic resin, they were subjected to a static load of 100 N. The lengths of the fringes that were generated were measured in three portions since the implants body: crestal, central and apical portion, parallel to the implant long axis. Furthermore, the entire extension area of dissipation of force was measured. Data were analyzed by one-way ANOVA (α = 0.05).

Results:

Lower stress was observed at the crestal bone in groups 2 and 4, while the stress levels in groups 1 and 3 were higher with significant differences compared to the other groups (p<0.05).

Conclusion:

The total amount of stress transmitted to the bone was not affected by implant length under axial loading condition, but changed in relation to the implant design with respect to the concentration of the fringes, which corresponded to the load distribution, with even more dissipation by conical implants.

Keywords: Biomechanics, Dental implants, Photoelasticity analysis, Short implants, Stress distribution.


Article Information


Identifiers and Pagination:

Year: 2016
Volume: 10
First Page: 522
Last Page: 530
Publisher Id: TODENTJ-10-522
DOI: 10.2174/1874210601610010522

Article History:

Received Date: 7/12/2015
Revision Received Date: 07/08/2016
Acceptance Date: 02/09/2016
Electronic publication date: 30/09/2016
Collection year: 2016

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© Gehrke et al.; Licensee Bentham Open

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution-Non-Commercial 4.0 International Public License (CC BY-NC 4.0) (https://creativecommons.org/licenses/by-nc/4.0/legalcode), which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.


* Address correspondence to this author at the Universidad Católica San Antonio de Murcia (UCAM), Biotecnos – Technology and Science, Department of Research, Santa Maria, Brazil; Tel/Fax: 55 55 3222 7253; E-mail: sergio.gehrke@hotmail.com


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