Biomechanical Behavior of Narrow Dental Implants Made with Aluminum- and Vanadium-Free Alloys: A Finite Element Analysis
Primer Autor |
Borie, Eduardo
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Co-autores |
Zapata, Jose Manuel
Leal, Eduardo
Hunter, Renato
de Souza, Raphael Freitas
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Título |
Biomechanical Behavior of Narrow Dental Implants Made with Aluminum- and Vanadium-Free Alloys: A Finite Element Analysis
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Editorial |
MDPI
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Revista |
MATERIALS
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Lenguaje |
en
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Resumen |
Titanium (Ti) alloys used for narrow dental implants usually contain aluminum (Al) and vanadium (V) for improved resistance. However, those elements are linked to possible cytotoxic effects. Thus, this study evaluated the biomechanical behavior of narrow dental implants made with Al- and V-free Ti alloys by the finite element method. A virtual model of a partially edentulous maxilla received single implants (diameter: 2.7 and 2.9 mm, length: 10 mm) at the upper lateral incisor area, with respective abutments and porcelain-fused-to-metal crowns. Simulations were performed for each implant diameter and the following eight alloys (and elastic moduli): (1) Ti-6Al-4V (control, 110 GPa), (2) Ti-35Nb-5Sn-6Mo-3Zr (85 GPa), (3) Ti-13Nb-13Zr (77 GPa), (4) Ti-15Zr (113 GPa), (5) Ti-8Fe-5Ta (120 GPa), (6) Ti-26.88Fe-4Ta (175 GPa), (7) TNTZ-2Fe-0.4O (107 GPa), and (8) TNTZ-2Fe-0.7O (109 GPa). The implants received a labially directed total static load of 100 N at a 45 degrees angle relative to their long axis. Parameters for analysis included the maximum and minimum principal stresses for bone, and von Mises equivalent stress for implants and abutments. Ti-26.88Fe-4Ta reaches the lowest maximum (57 MPa) and minimum (125 MPa) principal stress values, whereas Ti-35Nb-5Sn-6Mo-3Zr (183 MPa) and Ti-13Nb-13Zr (191 MPa) models result in the highest principal stresses (the 2.7 mm model surpasses the threshold for bone overload). Implant diameters affect von Mises stresses more than the constituent alloys. It can be concluded that the narrow implants made of the Ti-26.88Fe-4Ta alloy have the most favorable biomechanical behavior, mostly by mitigating stress on peri-implant bone.
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Fecha Publicación |
2022
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Tipo de Recurso |
artículo original
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doi |
10.3390/ma15248903
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Formato Recurso |
PDF
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Palabras Claves |
biomechanics
bone-implant interface
dental alloys
single tooth dental implant
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Ubicación del archivo | |
Categoría OCDE |
Química
Ciencia de Materiales
Metalurgia e ingeniería metalúrgica
Física
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Materias |
biomecánica
interfaz hueso-implante
aleaciones dentales
implante dental de un solo diente
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Identificador del recurso (Mandatado-único) |
artículo original
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Versión del recurso (Recomendado-único) |
versión publicada
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License |
CC BY 4.0
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Condición de la licencia (Recomendado-repetible) |
CC BY 4.0
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Derechos de acceso |
acceso abierto
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Access Rights |
acceso abierto
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Id de Web of Science |
WOS:000902860200001
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Tipo de ruta |
verde# dorado
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Categoría WOS |
Química
Ciencia de Materiales
Metalurgia e ingeniería metalúrgica
Física
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