Disclosed is an implant fixture. The fixture of a dental implant according to the present invention includes a fixture body in which a screw portion is formed in a spiral shape along an outer wall and an abutment insertion hole inserted with an abutment is recessed in a longitudinal direction at an upper end, an abutment rotation stopping portion which is formed in a shape in which at least a part of the inner wall of the fixture body is shape-fitted to the outer wall of the abutment and stops a relative rotation to the fixture body of the abutment, and a tool coupling portion which is provided in the fixture body adjacently to the abutment rotation stopping portion in an upper region of the abutment rotation stopping portion and detachably coupled with a rotary tool rotating the fixture body.本發明揭露一種植體固定裝置。根據本發明之牙科植體固定裝置包含一固定裝置本體，其中一螺紋部以一螺旋形狀沿著一外壁形成，且插有一支座之一支座插孔在一上端以一縱向凹入；一支座旋轉停止部形成一形狀，其中該固定裝置本體之內壁之至少一部分係形塑成配合於該支座之外壁，且停止對該支座之該固定裝置本體之一相對旋轉；以及一工具接合部，設置於支座旋轉停止部之一上方區域中的固定裝置本體內，該固定裝置本體鄰近支座旋轉停止部，且可拆卸地接合旋轉固定裝置本體之一旋轉工具。
