The technical field of the invention is that of means to be attached to the jawbone so as to brace the natural teeth or secure prostheses and/or dental implants. Specifically, the invention relates to a prosthetic device comprising a dental implant and to a related positioning method. According to a first aspect, the invention relates to a prosthetic device (1) comprising a dental implant (2), characterized in that said implant (2) comprises a threaded anchoring body (3) extending about a reference axis (x) and secured to a supporting head (4) of a prosthetic element (5), said anchoring body (3) being frusto-conical and comprising a dual taper as well as a median section (10) and an apical section (1) that are continuous with each other in a two-by-two manner. Said median section (10) comprises a base (12) having a nominal diameter (Dn) of between 3 mm and 6 mm, and threading, the threads (8a) of which form an angle (β) of between 55º and 59º. Said apical section comprises an apex having a nominal diameter (dn) of between 1 mm and 4 mm, and a threading, the threads (8b) of which form an angle (γ) of between 50° and 54°.Le domaine technique de linvention est celui des moyens destinés à être fixés à los de la mâchoire pour consolider les dents naturelles ou pour y assujettir des prothèses et/ou des implants dentaires, et a plus particulièrement pour objet un dispositif prothétique comportant un implant dentaire et procédé de mise en place associé. Selon un premier aspect, linvention concerne un dispositif prothétique (1) comportant un implant dentaire (2) caractérisé en ce que ledit implant (2) comporte un corps dancrage (3) fileté allongé autour dun axe (x) de référence et solidaire dune tête (4) de support dun élément prothétique (5), ledit corps dancrage(3) étant de forme tronconique et comportant dune part une double conicité et, dautre part un tronçon médian (10) et un tronçon apical (11) continus deux à deux, -ledit tronçon médian(10) comportant une base (12) de
