Abstract: The present invention relates to a block (1) for the CAD/CAM machining of a dental prosthetic element: an insert (2) wherein the dental prosthetic element is intended to be machined, a polymeric layer (5) covering at least one surface of the insert, a mandrel (6) fixed to the insert (2), characterised in that the insert (2) comprises two parts (3, 4) connected to one another, of which: a first part (3) intended to be machined to form an inlay-core, said first part comprising a composite material comprising one-directional reinforcing fibres, a second part (4) intended to be machined to form a crown, said second part having no reinforcing fibres and comprising a material comprising one or more mineral fillers.

Abstract: The present invention relates to a block (1) for the CAD/CAM machining of a dental prosthetic element: an insert (2) wherein the dental prosthetic element is intended to be machined, a polymeric layer (5) covering at least one surface of the insert, a mandrel (6) fixed to the insert (2), characterised in that the insert (2) comprises two parts (3, 4) connected to one another, of which: a first part (3) intended to be machined to form an inlay-core, said first part comprising a composite material comprising one-directional reinforcing fibres, a second part (4) intended to be machined to form a crown, said second part having no reinforcing fibres and comprising a material comprising one or more mineral fillers.

Abstract: The invention concerns a preform for a CAD/CAM machining apparatus having an upper face and a lower face a11d in which at least one of the cells is filled with a composite material to be machined by CAD/CAM, said material comprising long unidirectional fibers embedded in a cross-linked polymer matrix.

Abstract: Block for use in a CAD/CAM system for the manufacture of a dental restauration, said block consisting of a thermoplastic polymer comprising PEEK including radiopaque particles selected from the group comprising BaZrO3, YbF3, Yb2O3, SrO, SrZrO3, SiO2—ZrO2, SiO2—Yb2O3, Lu2O3, LuF3.

Abstract: The invention concerns a preform for a CAD/CAM machining apparatus having an upper face and a lower face a11d in which at least one of the cells is filled with a composite material to be machined by CAD/CAM, said material comprising long unidirectional fibers embedded in a cross-linked polymer matrix.

Abstract: Block for use in a CAD/CAM system for the manufacture of a dental restauration, said block consisting of a thermoplastic polymer comprising PEEK including radiopaque particles selected from the group comprising BaZrO3, YbF3, Yb2O3, SrO, SrZrO3, SiO2—ZrO2, SiO2—Yb2O3, Lu2O3, LUF3.

Abstract: A dental retention pin made of composite material includes a core consisting of fibers embedded in a resin matrix. The fibers, which have a refractive index (n), are radio-opaque, and the refractive index (n?) of the resin forming the matrix has a value close to that of the fibers.

Abstract: The invention relates to a prefabricated radio-opaque dental prosthetic member made of a composite material that comprises fibers embedded in a resin, said resin containing at least one radio-opaque component, characterized in that the radio-opaque component consists of nanoparticles having a size lower than 50 nm in order to transmit a portion or the totality of the wavelengths ranging from 400 to 600 nm of an incident radiation.

Abstract: A dental post includes a composite material such as long fibers embedded in a resin matrix, and is able to transmit visible radiation when it is lit by a dental lamp to ensure polymerization of a product for setting in a tooth's root canal. The post, which has a specific color determined at ambient temperature before insertion into said canal, and which contains at least one thermochromic substance able to provide said specific color, loses its color when in place in the canal. A method for forming the dental post and a kit including a plurality of dental posts and drills are also disclosed.

Abstract: The invention relates to a prefabricated radio-opaque dental prosthetic member made of a composite material that comprises fibres embedded in a resin, said resin containing at least one radio-opaque component, characterized in that the radio-opaque component consists of nanoparticles having a size lower than 50 nm in order to transmit a portion or the totality of the wavelengths ranging from 400 to 600 nm of an incident radiation.

Abstract: A dental retention pin made of composite material includes a core consisting of fibers embedded in a resin matrix. The fibers, which have a refractive index (n), are radio-opaque, and the refractive index (n?) of the resin forming the matrix has a value close to that of the fibers.

Abstract: A dental post includes a composite material such as long fibers embedded in a resin matrix, and is able to transmit visible radiation when it is lit by a dental lamp to ensure polymerization of a product for setting in a tooth's root canal. The post, which has a specific color determined at ambient temperature before insertion into said canal, and which contains at least one thermochromic substance able to provide said specific color, loses its color when in place in the canal. A method for forming the dental post and a kit including a plurality of dental posts and drills are also disclosed.

Abstract: Prosthetic dental element is obtained by machining a rod of composite material including fibres embedded in a matrix containing resin. The matrix also contains at least one agent with an antimicrobial effect at a concentration between 0.05 and 30% by weight of the prosthetic element. The agent is in powder form.

Abstract: Prosthetic dental element is obtained by machining a rod of composite material made of fibres embedded in a matrix containing resin. All or part of a surface of the machined rod is coated with at least one layer containing at least one agent with an antimicrobial effect.

Abstract: Dental post made of a composite material contains a central core constituted of a resin matrix in which fibres are embedded. The core is surrounded by a sheath. The sheath is free of fibres and contains at least one substance which can make the post radiopaque.

Abstract: [The invention concerns a] A dental retention pin made of composite material[, comprising] includes a core consisting of [fibers] fibers embedded in a resin matrix. [Said pin is characterized in that t]The [fibers] fibers, which have a refractive index (n), are radio-opaque, and the refractive index (n′) of the resin forming the matrix has a value close to that [(n)] of the [fibers] fibers.