Characterization and Bioactivity of Ti-6Al-4V Alloy Dental Implant Surface Treated by SLA Technique

Abstract

Superior quality dental implant surface was achieved by an air-isolation technique of sand-blasted, large-grit, acid-etched (SLA) treatment. The experiment was conducted in an air-isolation conditions of sand-blasting and acid-etching. The surface microstructures, chemical compositions, and bioactive properties of treated Ti-6Al-4V implants were examined using scanning electron microscope (SEM), energy dispersive spectrometer (EDS) and simulated body fluid (SBF) immersion test. Research results revealed that the air-isolation SLA (A-SLA) treated implant, which was coated with SBF thin liquid film and sandblasted for 20 s, exhibited better hydroxyapatite (HA)-inducing ability owing to its favorable wettability.