Bioactivity of an Experimental Dental Implant with Anodized Surface.

Autor: Villaça-Carvalho MFL; Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, UNESP-São Paulo State University São José dos Campos, São Paulo 12245-000, Brazil., de Araújo JCR; Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, UNESP-São Paulo State University São José dos Campos, São Paulo 12245-000, Brazil., Beraldo JM; Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, UNESP-São Paulo State University São José dos Campos, São Paulo 12245-000, Brazil., Prado RFD; Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, UNESP-São Paulo State University São José dos Campos, São Paulo 12245-000, Brazil., Moraes MEL; Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, UNESP-São Paulo State University São José dos Campos, São Paulo 12245-000, Brazil., Manhães Junior LRC; Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, UNESP-São Paulo State University São José dos Campos, São Paulo 12245-000, Brazil., Codaro EN; Department of Chemistry and Energy, School of Engineering, Guaratinguetá Campus, UNESP-São Paulo State University, Guaratinguetá, São Paulo 12516-410, Brazil., Acciari HA; Department of Chemistry and Energy, School of Engineering, Guaratinguetá Campus, UNESP-São Paulo State University, Guaratinguetá, São Paulo 12516-410, Brazil., Machado JPB; Associated Laboratory of Sensors and Materials, National Institute for Space Research, INPE, São José dos Campos, São Paulo 12227-010, Brazil., Regone NN; Department of Aeronautic and Communication Engineering São João da Boa Vista Campus, UNESP-São Paulo State University, São João da Boa Vista, São Paulo 13876-750, Brazil., Lobo AO; LIMAV-Interdisciplinary Laboratory for Advanced Materials, BioMatLab, UFPI-Federal University of Piaui, Teresina 64049-550, Brazil., Marciano FR; Department of Physics, UFPI-Federal University of Piauí, Teresina 64049-550, Brazil., Vasconcellos LMR; Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, UNESP-São Paulo State University São José dos Campos, São Paulo 12245-000, Brazil.
Jazyk: angličtina
Zdroj: Journal of functional biomaterials [J Funct Biomater] 2021 Jun 07; Vol. 12 (2). Date of Electronic Publication: 2021 Jun 07.
DOI: 10.3390/jfb12020039
Abstrakt: 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 TiO 2 film were positively affected by the anodizing technique, intensifying the biological characteristics in osseointegration.
Databáze: MEDLINE
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