Biomechanical Consequences of the Elastic Properties of Dental Implant Alloys on the Supporting Bone: Finite Element Analysis

Pérez Pevida, Esteban (Universidad de Zaragoza) ; Brizuela Velasco, Aritza ; Chávarri Prado, David ; Jiménez Garrudo, Antonio ; Sánchez Lasheras, Fernando ; Solaberrieta Méndez, Eneko ; Diéguez Pereira, Markel ; Fernández González, Felipe J. ; Dehesa Ibarra, Borja (Universidad de Zaragoza) ; Monticelli, Francesca (Universidad de Zaragoza)

Resumen: The objective of the present study is to evaluate how the elastic properties of the fabrication material of dental implants influence peri-implant bone load transfer in terms of the magnitude and distribution of stress and deformation. A three-dimensional (3D) finite element analysis was performed; the model used was a section of mandibular bone with a single implant containing a cemented ceramic-metal crown on a titanium abutment. The following three alloys were compared: rigid (Y-TZP), conventional (Ti-6Al-4V), and hyperelastic (Ti-Nb-Zr). A 150-N static load was tested on the central fossa at 6° relative to the axial axis of the implant. The results showed no differences in the distribution of stress and deformation of the bone for any of the three types of alloys studied, mainly being concentrated at the peri-implant cortical layer. However, there were differences found in the magnitude of the stress transferred to the supporting bone, with the most rigid alloy (Y-TZP) transferring the least stress and deformation to cortical bone. We conclude that there is an effect of the fabrication material of dental implants on the magnitude of the stress and deformation transferred to peri-implant bone.

Idioma: Inglés

DOI: 10.1155/2016/1850401

Año: 2016

Publicado en: BioMed Research International 2016 (2016), 1850401 [9 pp.]
ISSN: 2314-6133

Factor impacto JCR: 2.476 (2016)

Categ. JCR: BIOTECHNOLOGY & APPLIED MICROBIOLOGY rank: 66 / 160 = 0.412 (2016) - Q2 - T2
Categ. JCR: MEDICINE, RESEARCH & EXPERIMENTAL rank: 65 / 128 = 0.508 (2016) - Q3 - T2

Factor impacto SCIMAGO: 0.885 - Medicine (miscellaneous) (Q1) - Biochemistry, Genetics and Molecular Biology (miscellaneous) (Q2) - Immunology and Microbiology (miscellaneous) (Q2)

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Estomatología (Dpto. Cirugía,Ginecol.Obstetr.)