Abstract: A dental implant of which body has a form tapering toward its top and has a plurality of mountain-shaped projections emissively; said projections being cut off in its center, and ridge line portions of said projections which contact with compact bone portion of an alveolar bone at the time of insertion, being in a shape that said ridge lines increase its size upwardly; and a head for supporting an artificial tooth. The implant is useful for repairing lost canines.

Abstract: In an implant constructed of a blade form body (2) to be implanted within an alveolar bone (10) and a head (3), the body is constructed in a bending form like saw teeth in its sectional area in a whole length direction. In the upper portion of the body, sharp portions of the saw teeth which is a positioning range of the implant in the compact bone portion (10a) of the alveolar bone (10) at the time of the implantation, are projected in a taper form so as to gradually increase the height upward.