The present invention relates to the field of restorative implant prosthetics dentistry and more specifically concerns an osseointegrated alveolar implant prosthesis able to prosthetically increase missing bone volume and allow the insertion of endosseous implants, said prosthesis being composed of: a polished titanium plate provided with one or more threaded holes running through it vertically all along its height and which an implant prosthesis fits into which fixes the plate to an alveolar crest, a titanium grill soldered to said plate and a screw system with a double class of diameters.
