Abstract
It has been widely known that subperiosteal implant or endosseous-subperiosteal implant is applied to the serious alveolar bone loss patients. Though those conventional implants made of metal alone assure bioaffinity as biomaterial, however, soft-tissue is generated at the interface with bone.
The author and his colleagues have been conducting extensive R＆D work for the past seven years on the possibility of using Round Blade made by plasma spraying of H.A.P. on titanium material. As a result of animal experiment, the interface was observed to be united with bone in terms of histochemistry by the use of H.A.P. coated Round Blade.
Based on the above, subperiosteal implant and endosseous-subperiosteal implant both treated with H.A.P. plasma spraying were evaluated through clinical study, and the best progress has been observed in such case as only the parts where such endosseous subperiosteal implant were buried in bone was treated with H.A.P. plasma spraying.
