A problem is to provide an orthodontic implant device that can be easily prepared, and can extend a range of selection of materials forming an extension arm.
A solution is the orthodontic implant device having: a pair of anchor members 10 which are fixed to a palate M1; a bridge member 20 arranged so as to link places between the pair of anchor members 10; an arrangement member 30 arranged in the bridge member 20; and an extension arm 40 to move teeth M2. The arrangement member 30 has a fixing portion 31 for fixing the extension arm 40, and a wire-shaped projection portion for arranging the fixing portion 31 in the bridge member 20.