| 摘要 |
PURPOSE:To increase the strength, to allow the easy surface roughening and to obtain the adhesive power to allow the use of the above material as an implanting material by providing a ceramics base body and a glass layer as an intermediate bonding layer of an apatite layer. CONSTITUTION:The base body of the bioimplanting such as artificial bone, artificial joint and artificial tooth root, is constituted of ceramics materials, such as alumina single crystal, polycrystalline alumina and zirconia, a glass layer is applied on a joint surface of the base body and at least bone, and further the thermally sprayed layer of a calcium phosphate material, such as hydroxyapatite, on this glass layer. A glass slurry is applied on the ceramics base body consisting of alumina, zirconia, etc., and is calcined to coat the glass layer. The surface of this glass layer is roughened by sane-blasting and thereafter the apatite is thermally sprayed thereon; further the thermally sprayed layer is calcined to intensify the adhesive strength of the apatite layer. Namely, the glass layer infilters partly into the pores in the apatite layer at the time of the calcination to intensify the adhesive strength of the glass layer and the apatite layer. |
