Dental implant, having a central body (1) with a substantially conical or frustoconical shape and having, extending from the end with a larger cross-section, a connection seat (701) able to receive a stump pin; this central body (1) is provided with a blade (2) positioned in a longitudinal mid-plane of said central body (1) and has a length so as to protrude beyond the end of the central body (1) which has a smaller cross-section; the central body (1) and the blade (2) are able to give the implant a substantially wedge-like form able to epand the bone during insertion.