Relevant aspects of titanium and zirconia dental implants for their fatigue and osseointegration behaviors
Autor/a
Aragoneses, Javier
Lopez Valverde, Nansi
Fernandez-Dominguez, Manuel
Mena-Alvarez, Jesús
Rodriguez, Cinthia
Gil Mur, Francisco Javier
Fecha de publicación
2022ISSN
1996-1944
Resumen
Osseointegration capacity and good mechanical behavior are key to the success of the dental implant. In many investigations, comparisons of properties are made using different dental implant designs and therefore the results can be influenced by the macrodesign of the dental implant. In this work, studies were carried out with the same dental implant model using different roughness and different materials—commercially pure titanium (grade 4) and zirconia. For this purpose, 80 smooth passivated titanium (Ti), 80 smooth zirconia (ZrO2), and 80 rough passivated titanium (Ti-R) dental implants were used. The samples were characterized by their roughness, wettability, surface energy, residual stresses, and fatigue behavior. The implants were implanted in minipigs for 4 and 12 weeks. The animals were sacrificed, and histological studies were carried out to determine the osseointegration parameters for each of the implantation times. Ti and ZrO2 dental implants have very similar wettability and surface energy properties. However, the roughness causes a decrease in the hydrophilic character and a decrease of the total surface energy and especially the dispersive component, while the polar component is higher. Due to the compressive residual stresses of alumina sandblasting, the rough dental implant has the best fatigue behavior, followed by Ti and due to the lack of toughness and rapid crack propagation the ZrO2 implants have the worst fatigue behavior. The bone index contact (BIC) values for 4 weeks were around 25% for Ti, 32% for ZrO2, and 45% for Ti-R. After 12 weeks the Ti dental implants increased to 42%, for Ti, 43% for ZrO2, and an important increase to 76% was observed for Ti-R implants. In vivo results showed that the key factor that improves osseointegration is roughness. There was no significant difference between ZrO2 and Ti implants without sandblasting.
Tipo de documento
Artículo
Versión del documento
Versión publicada
Lengua
Inglés
Materias (CDU)
616.3 - Patología del aparato digestivo. Odontología
Palabras clave
Osteointegració
Titani
Zirconi
Implants dentals
Contacte amb l'índex ossi
Histologia
Osteointegración
Titanio
Circonita
Implantes dentales
Contacto de índice óseo
Histología
Osseointegration
Titanium
Zirconia
Dental implants
Bone index contact
Histology
Páginas
15
Publicado por
MDPI
Colección
15;11
Publicado en
Materials
Citación
Aragoneses, Javier; Lopez Valverde, Nansi; Fernandez-Dominguez, Manuel [et al.]. Relevant aspects of titanium and zirconia dental implants for their fatigue and osseointegration behaviors. Materials, 2022, 15(11), 4036. Disponible en: <https://www.mdpi.com/1996-1944/15/11/4036>. Fecha de acceso: 2 nov. 2022. DOI: 10.3390/ma15114036
Enlace al documento relacionado
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- Odontologia [228]
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