The author made two implant blades of gold alloy metal, and applied CEKA attachment to one blade. These two blades were implanted at the sockets resulting from removal of both 3rd premolar of experimental dog. Simple crown and tooth supporting denture was constructed on the implanted blades the author observed above mentioned procedures for 8 weeks. The obtained results were as follows; 1) There is no remarkable necrosis of supporting alveolar bone on both sides So, metal reaction was favourable. 2) Masticatory force which is loaded on each tooth was not effective on the alveolar bone.