Abstract: Process for the manufacture of dental or maxillo-facial prostheses, particularly endo-osseous prostheses or pivots, in which a layer of pure aluminum is deposited on a conductive substrate, preferably a metal, which forms the core of the prosthesis. The aluminum layer is obtained by electrochemical deposition of pure aluminum with non-aqueous electrolyte base of the type which has an aluminumorganic complex bath. The layer is then oxidized by anodization such that an alumina layer which is sealed and electrically insulated, is obtained, separating the core and the biological tissues surrounding the prosthesis.