An implanter is provided, which enables rebuilding of an interdental papilla with a simple method. An implanter 1 is made up of a T-shaped steel member as a main body. The lateral side portions centering a web portion 2 in a flange portion 3 are inclined so as to be closer to the web portion 2 with respect to a plane perpendicular to the web portion 2, to provide an angular shape, with its peak residing in a portion joining with the web portion. A plurality of holes 4 large enough for gingival fibers to thrust in are opened in the flange portion 3. One or more embedding portions 5 are projected from a tip end portion (lower end portion) of the web portion 2. Each of the embedding portions 5 has a tip end portion with at least an acute shape, or a shape that enables embedding by being driven into alveolar bone 10.