A Histological Study of Anodic Oxide Titanium Implant after Hydrothermal Treatment

The surface characteristic of titanium was improve by developing a hydroxyapatite film on top of an anodic titanium oxide film containing Ca and P via hydrothermal treatment (SA treatment). This study was conducted to investigate how SA treated implants affect the surrounding bone tissue based on early stage histological observations after insertion. Cylindrical plasma sprayed pure titanium implants and SA treated plasma sprayed pure titanium implants were inserted into the mandible of beagles. Four weeks after insertion, undercalcified samples were observed by light microscopy. The results suggested that SA treated implants have more contact directly with surrounding bone tissue than titanium implants, leading to the conclusion that SA treatment increased the compatibility of the titanium surface, and was found to be a useful method for inducing early bone formation around implant.