| Autor: |
Maria Fernanda Lima Villaça-Carvalho, Juliani Caroline Ribeiro de Araújo, Juliana Mariano Beraldo, Renata Falchete do Prado, Mari Eli Leonelli de Moraes, Luiz Roberto Coutinho Manhães Junior, Eduardo Norberto Codaro, Heloisa Andrea Acciari, João Paulo Barros Machado, Natal Nerímio Regone, Anderson Oliveira Lobo, Fernanda Roberta Marciano, Luana Marotta Reis de Vasconcellos |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Journal of Functional Biomaterials, Vol 12, Iss 2, p 39 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2079-4983 |
| DOI: |
10.3390/jfb12020039 |
| Popis: |
Background: Several studies proved that anodic oxidation improves osseointegration. This study aimed to optimize osseointegration through anodization in dental implants, obtaining anatase phase and controlled nanotopography. Methods: The division of the groups with 60 titanium implants was: control (CG); sandblasted (SG); anodized (AG): anodized pulsed current (duty cycle 30%, 30 V, 0.2 A and 1000 Hz). Before surgery, surface characterization was performed using Atomic Force Microscopy (AFM), Scanning Electron Microscopy (SEM), X-ray Dispersive Energy Spectroscopy (EDS) and Raman Spectroscopy. For in vivo tests, 10 New Zealand white rabbits received an implant from each group. The sacrifice period was 2 and 6 weeks (n = 5) and the specimens were subjected to computed microtomography (μCT) and reverse torque test. Results: AFM and SEM demonstrated a particular nanotopography on the surface in AG; the anatase phase was proved by Raman spectroscopy. In the μCT and in the reverse torque test, the AG group presented better results than the other groups. Conclusion: The chemical composition and structure of the TiO2 film were positively affected by the anodizing technique, intensifying the biological characteristics in osseointegration. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
