Previous studies clearly demonstrated that hydroxyapatite (HA)-coated implants are superior to titanium implants in bone-implant contact ratio after being installed in bone. Indeed, a lot of clinicians experience favorable clinical outcomes of HA-coated implants in their practices. “Bio-integration” is the integration between HA and living bone, in which the two components are chemically bonded with each other. On the other hand, “osseo-integration” originally means integration between titanium and bone where the two components are not chemically bonded but only attached.
Japan has always been a world leader in developing biomaterials based on HA and HA coated implants. In 1975, a Japanese company invented plasma spraying method as a technology for coating HA to the implant surface for the first time in the world. Since then, various other methods, such as flame spraying, thermal decomposition and sputtering have been also developed in Japan. The implants, which were coated with HA in these methods, were tested, eventually approved by the government and have been used clinically.
The 1st Symposium on Apatite was organized by the Japanese Association of Apatite Science (JAAS) in 1985, afterward, the 1st International Symposium on Apatite was held in Japan in 1991. Since then, the symposium have contributed to a great progress regarding synthesis, property, coating technique, and application for HA.
Based on this history and the achievements regarding HA in Japan, taking initiative in utilizing bio-integration technology to further develop and improve bio-integrated implants, it would be very appropriate to establish “Bio-integration Society” in Japan.
Chairman Shohei Kasugai
Executive Director Hideki Aoki
Managing Director Hiroshi Takarada
Director Osamu Tanaka
Director Tsuyoshi Takado
Director Soichiro Asanami