Dental implant and self-locking fastening element with heterogeneousporous structures, and method for its production
OwnerAbdelmadjid Djemai, Jean-Jacques Fouchetinventors
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Abstract
A dental implant assembly comprising an elongated inner body substantially resembling a tooth root (1-1) and an outer member for securing to a bone of a patient (1-2) having a heterogeneous porous structure adapted to provide bone growth, the inner body and the outer fixation member being formed in one piece, the fastening element being movable between a stored passive position and an extended active position (1-2).
Claims20
A dental implant assembly comprising an elongated inner body (1-1, 5-1) substantially resembling a tooth root and an outer member for fixing a heterogeneous porous structure bone structure (1-2, 5-4) adapted to provide bone growth, the fixation member being movable between a stored passive position and an extended active position, the inner body and the outer fixation member being formed in one piece.
The assembly as claimed in one of the preceding claims, in which the fixing element and/or the inner body consist of a composite material formed by a melting of microparticles of a first material with a given melting point, and nanoparticles of a second material with a higher melting temperature, forming a dendritic zone network of the first material at the micron scale interspersed with nanometric filamentous zones of the second material.
An assembly according to one of the preceding claims, wherein the inner body has a hollow frustoconical shape defining a wall thickness, provided with an external thread, and comprises two opposite grooves made in its wall thickness and in a helical profile, the fastening element having the form of a thick ribbon twisted according to the helical profile of the two grooves and a shape complementary to those ci.
A method of manufacturing a dental implant assembly according to one of the preceding claims, by stacking layers of metal powders and/or non-metallic fused selectively by concentration of an energy source comprising a step of preparing the mobility of the fastener relative to the inner body.
Method according to the preceding claim, wherein the step of preparing the mobility of the fastener comprises a step of forming a bridge of breakable material between a portion of the assembly forming the inner body and a portion of the assembly forming the fastener during manufacture by stacking layers.
Dependencies are inferred from the claim text.