Dental implant to be placed in the posterior upper jaw

Abstract

A dental implant implantable in the upper rear maxilla following the lifting of the sinus membrane of the maxillary sinus by the crestal approach has a body with a shank shape. The body includes a main portion and, on opposite sides thereof, a first crestal proximal portion and a second apical distal part. The body is provided with a threading having a spiral shape with cutting edges. The threading extends in spiral fashion only about and along the main portion of the body and terminates before the second apical distal part, while the second apical distal part is conformed to provide an external surface free of projecting or cutting parts, and is at lest partially provided annularly with a groove or a series of grooves.

Dependencies are inferred from the claim text.