Bioactivity of an Experimental Dental Implant with Anodized Surface

Autor(es):Mostrar menos -

Lima Villaca-Carvalho, Maria Fernanda ^[1] ; Ribeiro de Araujo, Juliani Caroline ^[1] ; Beraldo, Juliana Mariano ^[1] ; do Prado, Renata Falchete ^[1] ; Leonelli de Moraes, Mari Eli ^[1] ; Coutinho Manhaes Junior, Luiz Roberto ^[1] ; Codaro, Eduardo Norberto ^[2] ; Acciari, Heloisa Andrea ^[2] ; Barros Machado, Joao Paulo ^[3] ; Regone, Natal Nerimio ^[4] ; Lobo, Anderson Oliveira ^[5] ; Marciano, Fernanda Roberta ^[6] ; Reis de Vasconcellos, Luana Marotta ^[1]

Afiliação do(s) autor(es)

^[1] UNESP Sao Paulo State Univ Sao Jose dos Campos, Inst Sci & Technol, Dept Biosci & Oral Diag, BR-12245000 Sao Paulo - Brazil

^[2] UNESP Sao Paulo State Univ, Sch Engn, Dept Chem & Energy, Guaratingueta Campus, BR-12516410 Guaratingueta, SP - Brazil

^[3] Natl Inst Space Res, Associated Lab Sensors & Mat, INPE, BR-12227010 Sao Jose Dos Campos, SP - Brazil

^[4] UNESP Sao Paulo State Univ, Dept Aeronaut & Commun Engn, Sao Joao da Boa Vista Campus, BR-13876750 Sao Joao Da Boa Vista, SP - Brazil

^[5] UFPI Fed Univ Piaui, LIMAV Interdisciplinary Lab Adv Mat, BioMatLab, BR-64049550 Teresina - Brazil

^[6] UFPI Fed Univ Piaui, Dept Phys, BR-64049550 Teresina - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF FUNCTIONAL BIOMATERIALS; v. 12, n. 2 JUN 2021.
• Citações Web of Science: 0

Resumo

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 (mu CT) 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 mu CT 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. (AU)

• Processo FAPESP: 11/17392-3 - Influência do laser em baixa intensidade e do tratamento biomimético na osseointegração: análise histológica e biomecânica em coelhos
• Beneficiário: Luana Marotta Reis de Vasconcellos
• Modalidade de apoio: Auxílio à Pesquisa - Regular