Abstract: An oxidation and grafting method for grafting a bioactive polymer, such as polyNaSS, onto an article, in particular a polymer or ceramic article. The method comprises a step of oxidation by ozonation and a step of grafting by radical polymerisation in a polymerisation station having a first reactor. The two steps of oxidation and grafting are carried out consecutively in different solutions in the reactor of the polymerisation station.

Abstract: Membrane, used in particular for regenerating periodontal ligament, preventing the formation of adhesions or the regeneration and reconstruction of tissue, including at least one layer of fabric (N1) made of fibres (F) produced from at least one polymer. The fibres (F) are free of sizing, the layer of fabric (N1) has a non-woven arrangement of fibres disposed in a random or aligned manner, and the fibres (F) are coated with PolyNaSS (polystyrene sodium sulfonate).

Abstract: A method of grafting a bioactive polymer on implants, the method comprising the following steps: a) mounting implants on a support structure; b) dipping the implants in a bath of acid; c) rinsing the implants; b) dipping the implants in an anodizing bath so as to anodize them; e) rinsing the implants; f) putting the implants into a polymerization chamber; g) mounting the implants on an elevator present in the chamber; h) actuating the elevator so as to dip the implants into a polymerization bath; i) subjecting the polymerization bath to a polymerization catalyst; j) raising the elevator from the polymerization bath; k) removing the implants from the elevator; l) extracting the implants from the chamber; m) washing the implants so as to remove any excess non-grafted bioactive polymer therefrom; and n) drying the grafted implants.

Abstract: A method of grafting a bioactive polymer on implants, the method comprising the following steps: a) mounting implants on a support structure; b) dipping the implants in a bath of acid; c) rinsing the implants; b) dipping the implants in an anodizing bath so as to anodize them; e) rinsing the implants; f) putting the implants into a polymerization chamber; g) mounting the implants on an elevator present in the chamber; h) actuating the elevator so as to dip the implants into a polymerization bath; i) subjecting the polymerization bath to a polymerization catalyst; j) raising the elevator from the polymerization bath; k) removing the implants from the elevator; l) extracting the implants from the chamber; m) washing the implants so as to remove any excess non-grafted bioactive polymer therefrom; and n) drying the grafted implants.

Abstract: A dental cement composition comprising more than 50% by weight Portland cement, and characterized in that it further comprises a polymer selected from styrene, vinyl, and acrylic polymers carrying a sulfonate function.

Abstract: A dental cement composition comprising more than 50% by weight Portland cement, and characterized in that it further comprises a polymer selected from styrene, vinyl, and acrylic polymers carrying a sulfonate function.

Abstract: A titanium or titanium alloy pin for cement-free fixing in a long bone for a joint prosthesis or for bone repair is surrounded by a lattice of titanium wire with a mesh size of at least 0.3 mm. The central part of the pin and the lattice are coated with a coating of titanium oxide which protects them against long-term corrosion. The lattice is further coated with a biodegradable and biocompatible material having a low modulus of elasticity.

Abstract: A titanium or titanium alloy pin for cement-free fixing in a long bone for a joint prosthesis or for bone repair, said pin being surrounded by a lattice of titanium wire with a mesh size of at least 0.3 mm. The pin has a rectangular cross-section and two of its surfaces have respective longitudinal grooves (3) which are notched transversely to form shoulders (5) perpendicular to the pin axis, said shoulders giving the pin a scaly profile. Application to a total prosthesis of the hip.