Abstract
We developed surface modification technology for implants using commercially pure titanium (cp Ti). The study contributes to reducing the time required for adhesion between bone and implant surfaces. In this study, a nanosecond-pulsed laser was used to modify the surfaces of cp Ti and the bioactivities were then evaluated. The results indicated production of an oxide layer with high oxygen concentration and various textures. Moreover, OH groups were generated on the laser-treated surface. These effects result in the formation of hydroxyapatite on surfaces immersed in 1.5x concentrated simulated body fluid. These observations indicated that laser treatment improves the bioactivity of cp Ti, which is a critical property for osseointegrated implants.
