Influence of connection type and platform diameter on titanium dental implants fatigue: non-axial loading cyclic test analysis
Author
Nicolas-Silvente, Ana Isabel
Ortiz-Garcia, Iván
Jiménez Guerra, Álvaro
Monsalve-Guil, Loreto
Ayuso-Montero, Raul
Gil Mur, Francisco Javier
Lopez-Lopez, Jose
Publication date
2020ISSN
1660-4601
Abstract
Two-pieces dental implants must provide stability of the implant-abutment-interface. The connection type and platform diameter could influence the biomechanical resistance and stress distribution. This study aims to evaluate the fatigue for different types of connections, external and internal, and different platform diameters. Three implant designs with the same length were used: (a) external hexagon/narrow platform; (b) internal double hexagon/narrow platform; (c) internal octagon/regular platform. A fatigue test was developed to establish the number of cycles needed before fracture. A 30º oblique load with a sinusoidal function of fatigue at a frequency of 15 Hz and 10% stress variation was applied to each system. The fatigue load limit (FLL) for design (a) was 190 N, being the nominal-curvature-moment (NCM) = 1.045; FLL = 150 N, with a NCM = 0.825 for (b), and FLL = 325 N, with a NCM = 1.788 for (c). The platform diameter affects the FLL, obtaining lower FLL on a narrow platform. The connection type interferes with the implant walls’ width, especially in narrow implants, making internal connections more unstable at this level. Long-term clinical studies to assess the restoration’s success rate and survival are mandatory.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
616.3 - Pathology of the digestive system. Complaints of the alimentary canal
Keywords
Implants dentals
Titani
Implantes dentales
Titanio
Dental implants
Titanium
Pages
12
Publisher
MDPI
Collection
17; 23
Is part of
International Journal of Environmental Research and Public Health
Citation
Nicolas-Silvente, Ana I.; Velasco-Ortega, Eugenio; Ortiz-Garcia, Ivan [et al.]. Influence of connection type and platform diameter on titanium dental implants fatigue: non-axial loading cyclic test analysis. International Journal of Environmental Research and Public Health, 2020, 17, p. 1-12. Disponible en: <https://www.mdpi.com/1660-4601/17/23/8988>. Fecha de acceso: 12 ene. 2020. DOI: 10.3390/ijerph17238988
Grant agreement number
info:eu-repo/grantAgreement/MICINN/MAT2017-83905-R
info:eu-repo/grantAgreement/MICINN/RYC-2015-18566
info:eu-repo/grantAgreement/MICINN/RTI2018-098075-B-C21
info:eu-repo/grantAgreement/MICINN/RTI2018-098075-B-C22
This item appears in the following Collection(s)
- Odontologia [245]
Rights
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open accessarticle distributed under the terms and conditions of the Creative Commons Attribution(CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/