A supra-osseous dental implant, comprising: a) a laminar elongated plate having a longitudinal axis and comprising: i) a first anchoring part at one end of the elongated plate and comprising a first positioning means (21, 22, 23, 24, 25) for positioning at least four anchoring screws in a vestibular side of a jaw bone, ii) a second anchoring part at the other end of the elongate plate and comprising a second positioning means (21, 22) for positioning at least two anchoring screws in a lingual or palate side of the jaw bone, iii) a central rigid part positioned between the first anchoring part and the second anchoring part, the central part extending perpendicularly to the longitudinal axis of the laminar elongated plate in the plane of the laminar elongated plate; and iv) a first thin arm and a second thin arm extending along the longitudinal axis and connecting one side of the central part to the first anchoring part, a third thin arm and a fourth thin arm extending along the longitudinal axes and connecting the other side of the central part to the second anchoring part, the thin arms (111b, 112b, 111c, 112c) being malleable and flexible relative to the central part such that the laminar elongated plate can bridge over the jawbone, in a transverse direction to a bone crest of the jaw bone and extending from the longitudinal ends of the central part, and b) an upright extending shank fixed to the central part, the shank comprising dental prosthetic fixing means for fixing a dental prosthetic assembly to the shank. a) a laminar elongated plate having a longitudinal axis and comprising: i) a first anchoring part at one end of the elongated plate and comprising a first positioning means (21, 22, 23, 24, 25) for positioning at least four anchoring screws in a vestibular side of a jaw bone, ii) a second anchoring part at the other end of the elongate plate and comprising a second positioning means (21, 22) for positioning at least two anchoring screws in a lingual or palate side of the jaw bone, iii) a central rigid part positioned between the first anchoring part and the second anchoring part, the central part extending perpendicularly to the longitudinal axis of the laminar elongated plate in the plane of the laminar elongated plate; and iv) a first thin arm and a second thin arm extending along the longitudinal axis and connecting one side of the central part to the first anchoring part, a third thin arm and a fourth thin arm extending along the longitudinal axes and connecting the other side of the central part to the second anchoring part, the thin arms (111b, 112b, 111c, 112c) being malleable and flexible relative to the central part such that the laminar elongated plate can bridge over the jawbone, in a transverse direction to a bone crest of the jaw bone and extending from the longitudinal ends of the central part, and i) a first anchoring part at one end of the elongated plate and comprising a first positioning means (21, 22, 23, 24, 25) for positioning at least four anchoring screws in a vestibular side of a jaw bone, ii) a second anchoring part at the other end of the elongate plate and comprising a second positioning means (21, 22) for positioning at least two anchoring screws in a lingual or palate side of the jaw bone, iii) a central rigid part positioned between the first anchoring part and the second anchoring part, the central part extending perpendicularly to the longitudinal axis of the laminar elongated plate in the plane of the laminar elongated plate; and iv) a first thin arm and a second thin arm extending along the longitudinal axis and connecting one side of the central part to the first anchoring part, a third thin arm and a fourth thin arm extending along the longitudinal axes and connecting the other side of the central part to the second anchoring part, the thin arms (111b, 112b, 111c, 112c) being malleable and flexible relative to the central part such that the laminar elongated plate can bridge over the jawbone, in a transverse direction to a bone crest of the jaw bone and extending from the longitudinal ends of the central part, and b) an upright extending shank fixed to the central part, the shank comprising dental prosthetic fixing means for fixing a dental prosthetic assembly to the shank.