Benefits of residual aluminum oxide for sand blasting titanium dental implants: osseointegration and bactericidal effects
Author
Gil Mur, Francisco Javier
Pérez Antoñanzas, Román
Rizo-Gorrita, María
Torres-Lagares, Daniel
Gutierrez, Jose Luis
Publication date
2022ISSN
1996-1944
Abstract
Objectives. The purpose of this work was to determine the influence of residual alumina after sand blasting treatment in titanium dental implants. This paper studied the effect of alumina on physico-chemical surface properties, such as: surface wettability, surface energy. Osseointegration and bacteria adhesion were determined in order to determine the effect of the abrasive particles. Materials and Methods. Three surfaces were studied: (1) as-received, (2) rough surface with residual alumina from sand blasting on the surface and (3) with the same roughness but without residual alumina. Roughness was determined by white light interferometer microscopy. Surface wettability was evaluated with a contact angle video-based system and the surface free energy by means of Owens and Wendt equation. Scanning electron microscopy equipped with microanalysis was used to study the morphology and determine the chemical composition of the surfaces. Bacteria (Lactobacillus salivarius and Streptococcus sanguinis) were cultured in each surface. In total, 110 dental implants were placed into the bone of eight minipigs in order to compare the osseointegration. The percentage of bone-to-implant contact was determined after 4 and 6 weeks of implantation with histometric analysis. Results. The surfaces with residual alumina presented a lower surface free energy than clean surfaces. The in vivo studies demonstrated that the residual alumina accelerated bone tissue growth at different implantation times, in relation to clean dental implants. In addition, residual alumina showed a bactericidal effect by decreasing the quantity of bacteria adhering to the titanium. Conclusions. It is possible to verify the benefits that the alumina (percentages around 8% in weight) produces on the surface of titanium dental implants. Clinical relevance. Clinicians should be aware of the benefits of sand-blasted alumina due to the physico-chemical surface changes demonstrated in in vivo tests.
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 de titani
Osteointegració
Superfícies
Alúmina
Implantes de titanio
Osteointegración
Superficies
Alúmina
Titanium implants
Osseointegration
Surfaces
Alumina
Pages
15
Publisher
MDPI
Collection
15;1
Is part of
Materials
Citation
Gil Mur, Francisco Javier; Pérez antoñanzas, Román; Herrero-Climent, Mariano [et al.]. Benefits of residual aluminum oxide for sand blasting titanium dental implants: osseointegration and bactericidal effects. Materials, 2022, 15(1), 178. Disponible en: <https://www.mdpi.com/1996-1944/15/1/178>. Fecha de acceso: 8 feb. 2022. DOI: 10.3390/ma15010178
Grant agreement number
info:eu-repo/grantAgreement/MICINN/RTI2018-098075-B-C22
info:eu-repo/grantAgreement/MICINN/RYC2018-025977-I
This item appears in the following Collection(s)
- Odontologia [228]
Rights
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by/4.0/