Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
ASTM F67 TITANIUM ANODIZING TO IMPROVE OSSEOINTEGRATION FOR DENTAL IMPLANTS
Submission Author:
Wellington Elioenae do Nascimento , SP
Co-Authors:
Wellington Elioenae do Nascimento, CARLOS PICONE, Juno Gallego
Presenter: Wellington Elioenae do Nascimento
doi://10.26678/ABCM.COBEM2023.COB2023-0228
Abstract
Titanium alloys are widely applied in medicine and dentistry due to their biocompatibility, which favors dental or surgical implants fixation in bone tissues. These implants are usually manufactured by machining and undergo surface processing to generate an adequate texture on the surface of the piece. This textured surface is necessary to promote cell adhesion on the surface of the implants and improve the bioquality of the implant. The present work aims to investigate the effect of the anodizing treatment on the surface of ASTM F67 titanium grade 4 samples, promoting the formation of preferential corrosion pits for osseointegration improvement. An aqueous electrolyte composed by 10% oxalic acid was adopted in the electrochemical experiments, where direct and alternate current were applied from 20 to 100 volts during 10s, 1min or 5min at room temperature. The surfaces of the samples were observed and their roughness parameters were determined using a digital roughness meter. The results indicated variation in both color and the formation of microcavities in the surface with increasing electric potential, more evident in direct current treatments. Interaction between electric potential and anodizing time was considered quite complex and significant to surface texture of the samples. In the performed tests carried out, average roughness (Ra) 0.5 – 2.2 m, very promising results to improving the process of adhesion of the biomaterial to the human bone.
Keywords
ASTM F67 titanium, anodizing, surface roughness, osseointegration
