A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
A61C 13/30 (2006.01)
Patent
CA 2206892
A crown-and-root reconstruction assembly made of composite materials with a modulus of elasticity varying along a gradient. The assembly comprises a physiological securing peg (4) and a crown reconstruction base (1) made of partially or completely light-conducting material. The connection between the crown reconstruction base (1) and the peg (4) is achieved by polymerising the material of the base under an isostatic charge. The forming process may be completed by manipulating the material with the fingers through a forming membrane (22) to prevent any gap developing at the interface (10) between the root (8) and the crown reconstruction base (1). A helical arrangement of the fibres (5) of the peg (4) ensures that the modulus of elasticity is close to that of the natural dentine, regardless of the angle of incidence at which the reconstruction is stressed.
L'invention concerne un ensemble de reconstitution corono-radiculaire en matériaux composites à gradient de module d'élasticité. Elle comporte un tenon d'ancrage physiologique (4), et une embase de reconstitution coronaire (1) en matériau conduisant totalement ou partiellement la lumière. La liaison de l'embase de reconstitution coronaire (1) avec le tenon (4) est réalisée par polymérisation du matériau de l'embase sous une charge isostatique. Le formage peut être complété par une manipulation digitale au travers d'une membrane de formage (22), évitant toute présence de hiatus à l'interface (10) de la racine (8) et de l'embase de reconstitution coronaire (1). Une organisation hélicoïdale des fibres (5) du tenon (4) assure un module d'élasticité proche de celui de la dentine naturelle quelque soit l'angle d'incidence sous lequel est sollicitée la reconstitution.
Billet Gilles
Clunet-Coste Bruno
Duret Bernard
Fenon Christian
Maneuf Bernard
Billet Gilles
Clunet-Coste Bruno
Duret Bernard
Fenon Christian
Maneuf Bernard
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