Abstract: A polymerisable radiation-curable composition comprising: (i) monomers, comprising at least (a) a first monomer having a TG (glass-transition point) of the homopolymer of said first monomer ?120° C. and at least (b) a second monomer having a TG (glass-transition point) of the homopolymer of the second monomer ?100° C., wherein at least one of the at least one first monomer or of the at least one second monomer has an alicyclic group, and comprising (ii) at least one further component, comprising at least one photo-initiator for the UV and/or Vis spectral region or a photo-initiator system for the UV and/or Vis spectral region. Also disclosed is a blank in the form of a three-dimensional moulded body of a polymerised composition, in particular radiation-cured composition, for producing 3D moulded bodies, dental prosthetic parts, orthopaedic appliances or dental pre-forms in a rapid prototyping, rapid manufacturing, or rapid tooling method.

Abstract: The invention relates to a light-curing composition for producing dental components in a DLP method or SLA method, comprising, in relation to the total mass of the light-curing composition: a liquid monomer composition with a mass fraction of 60% or more, comprising one or more radically polymerizable monomers, one or more photoinitiators with a combined mass fraction in the range from 0.001 to 10%, and solid polymer particles with a particle diameter in the range from 0.4 to 4 ?m and a combined mass fraction in the range from 0.1 to 30%, wherein the solid polymer particles are dispersed in the liquid monomer composition.

Abstract: The subject matter of the invention is an autopolymerisable 2-component prosthetic base material, a kit containing the material as well as a method for its production comprising at least one liquid monomer component (A), and at least one powdered component (B), wherein the prosthetic material in component (A) besides methylmethacrylate contains at least one N-alkyl-substituted acryloyloxy carbamate having a molecular mass of less than or equal to 250 g/mol, optionally at least one at least di-functional urethane (meth)acrylate, a di-, tri-, tetra- or multi-functional monomer not being urethane (meth)acrylate, and optionally polymeric particles having a primary particle size of less than 800 nm, and the powdered component (B) comprises polymeric particles having at least three different particle size fractions, and both (A) and (B) contains at least one initiator or at least one component of an initiator system for autopolymerisation.

Abstract: A polymerisable radiation-curable composition comprising: (i) monomers, comprising at least (a) a first monomer having a TG (glass-transition point) of the homopolymer of said first monomer ?120° C. and at least (b) a second monomer having a TG (glass-transition point) of the homopolymer of the second monomer ?100° C., wherein at least one of the at least one first monomer or of the at least one second monomer has an alicyclic group, and comprising (ii) at least one further component, comprising at least one photo-initiator for the UV and/or Vis spectral region or a photo-initiator system for the UV and/or Vis spectral region. Also disclosed is a blank in the form of a three-dimensional moulded body of a polymerised composition, in particular a radiation-cured composition, for producing 3D moulded bodies, dental prosthetic parts, orthopaedic appliances or dental pre-forms in a rapid prototyping, rapid manufacturing, or rapid tooling method.

Abstract: A polymerisable radiation-curable, in particular UV-Vis-, UV- or Vis-curable, composition comprising: (i) monomers, wherein the monomers comprise: (a.1) at least one triacrylate derived from 1,3,5-tris(?-hydroxyalkyl) isocyanurate, wherein the hydroxyalkyl residue comprises 1 to 8 C-atoms and may be linear, branched and/or cyclic, and (a.2) at least one di-functional monomer, not being a urethane (meth)acrylate, and (ii) at least one further component, comprising: at least one photo-initiator for the UV and/or Vis spectral region or a photo-initiator system for the UV and/or Vis spectral region.

Abstract: A polymerisable, radiation curable composition comprising (i) monomers comprising: (a) at least one acrylic acid ester having an additional carboxy group, acrylic acid ester having at least one additional anhydride group of carboxy groups, and/or derivative of the afore-mentioned acrylic acid esters, (b) at least one di-functional acrylate having a bivalent alicyclic group and/or at least one di-functional methacrylate having a bivalent alicyclic group, and (c) optionally, at least one disubstituted 4,4?-di(oxabenzene) dialkyl methane of formula I, and (ii) at least one further component comprising: (d) at least one photoinitiator for the UV and/or Vis spectral region or a photoinitiator system. The composition is suitable for producing dental prosthetic parts, orthopaedic appliances or dental pre-forms, having a) a flexural strength 50 MPa, b) an E-modulus ?1500 MPa, c) a bending fracture ?1.1 MPa m1/2, and/or d) a fracture work >250 J/m2 DIN EN ISO 20795-2.

Abstract: Methods produce a three-dimensional dental block of material from a dental, polymerizable material. The methods include at least: transferring the polymerizable dental material into a radiolucent three-dimensional casting or press mold; irradiating the polymerizable dental material substantially from all sides with light in the UV/Vis spectral region forming polymerized outer surfaces of the dental material in the form of a solid outer shell of the dental material, wherein the shell is present in the defined three-dimensional geometry of the material whilst the inner region of the material is not polymerized or partially polymerized; heating the material with solid shell being present in defined three-dimensional geometry, to 60° C. to 150° C. for at least 90 minutes; and obtaining a dental, polymerized block of material having defined three-dimensional geometry.

Abstract: The subject matter of the invention is an autopolymerisable two-component prosthetic base material and a method for its production comprising A) at least one liquid monomer component, and B) at least one powdered component, whereby the prosthetic material comprises in components (A) and/or (B) (i) at least one initiator or one initiator system for autopolymerisation, (ii) core-shell particles modified by an elastic phase, and (iii) at least one urethane (meth)acrylate.

Abstract: The invention relates to a method for the production of blocks of material of a polymerized dental composite material as well as to the blocks of material obtainable according to the method, in which (i) a polymerisable dental composite material is transferred into a pressure-resistant casting mould (100), (ii) a pressure in the range of 10 to 500 MPa is applied to the polymerisable dental composite material in the pressure-resistant casting mould, and (iii) at least a part of the casting mould and/or the polymerisable material is heated in a defined manner to a temperature of 90 to 150° C.

Abstract: The subject matter of the invention is an autopolymerisable 2-component prosthetic base material, a kit containing the material as well as a method for its production comprising at least one liquid monomer component (A), and at least one powdered component (B), wherein the prosthetic material in component (A) besides methylmethacrylate contains at least one N-alkyl-substituted acryloyloxy carbamate having a molecular mass of less than or equal to 250 g/mol, optionally at least one at least di-functional urethane (meth)acrylate, a di-, tri-, tetra- or multi-functional monomer not being urethane (meth)acrylate, and optionally polymeric particles having a primary particle size of less than 800 nm, and the powdered component (B) comprises polymeric particles having at least three different particle size fractions, and both (A) and (B) contains at least one initiator or at least one component of an initiator system for autopolymerisation.

Abstract: Methods produce a three-dimensional dental block of material from a dental, polymerizable material. The methods include at least: transferring the polymerizable dental material into a radiolucent three-dimensional casting or press mold; irradiating the polymerizable dental material substantially from all sides with light in the UV/Ms spectral region forming polymerized outer surfaces of the dental material in the form of a solid outer shell of the dental material, wherein the shell is present in the defined three-dimensional geometry of the material whilst the inner region of the material is not polymerized or partially polymerized; heating the material with solid shell being present in defined three-dimensional geometry, to 60° C. to 150° C. for at least 90 minutes; and obtaining a dental, polymerized block of material having defined three-dimensional geometry.

Abstract: The subject matter of the invention is a three-dimensional molded body, in particular a milling blank, made of a polymerizable prosthetic material, which is suitable for milling machining by means of CNC and/or CAD/CAM, having a fracture toughness of greater than or equal to 1.9 Mpa·m1/2 and a fracture work of greater than or equal to 900 J/m2. The milling blank preferably comprises core-shell particles modified by an elastic phase and is optionally based on a content of urethane (meth)acrylate polymerized into the polymer. Moreover, a subject matter of the invention is the use of the milling blanks for the production of at least parts of dental prosthetic parts, such as a prosthesis, artificial teeth, bridges, or of orthodontic appliances and instruments in medical field.

Abstract: A method for the production of dental prosthetic moulded parts as well as a ready for use, polymerisable dental material for the production of dental prosthetic moulded parts, such as of total or partial prostheses, parts of bridges, crowns, is proposed. The ready for use dental material, optionally after mixing the separated two paste dental material having an initiator system separated into the pastes and otherwise being essentially identical dental material, is immediately curable or polymerisable, respectively, into prosthetic moulded parts without swelling time. A kit comprising the ready for use, polymerisable dental material, as well as the use of the kit and a method for the production of dental prosthetic moulded parts is also a subject matter of the invention.

Abstract: The subject matter of the invention is an autopolymerisable two-component prosthetic base material and a method for its production comprising A) at least one liquid monomer component, and B) at least one powdered component, whereby the prosthetic material comprises in components (A) and/or (B) (i) at least one initiator or one initiator system for autopolymerisation, (ii) core-shell particles modified by an elastic phase, and (iii) at least one urethane (meth)acrylate.

Abstract: The subject matter of the invention is a three-dimensional moulded body, in particular a milling blank, made of a polymerisable prosthetic material, which is suitable for milling machining by means of CNC and/or CAD/CAM, having a fracture toughness of greater than or equal to 1.9 Mpa·m1/2 and a fracture work of greater than or equal to 900 J/m2. The milling blank preferably comprises core-shell particles modified by an elastic phase and is optionally based on a content of urethane (meth)acrylate polymerised into the polymer. Moreover, a subject matter of the invention is the use of the milling blanks for the production of at least parts of dental prosthetic parts, such as a prosthesis, artificial teeth, bridges, or of orthodontic appliances and instruments in medical field.

Abstract: The subject matter of the invention is an autopolymerisable two-component prosthetic base material and a method for its production comprising A) at least one liquid monomer component, and B) at least one powdered component, whereby the prosthetic material comprises in components (A) and/or (B) (i) at least one initiator or one initiator system for autopolymerisation, (ii) core-shell particles modified by an elastic phase, and (iii) at least one urethane (meth)acrylate.

Abstract: The invention relates to a method for the production of an adhesive bond between (a) the surface of dental subframes based on high-performance polymers, and (b) dental composites, by A at least creating retentive anchoring by means of mechanical pre-treatment of the surface of each subframe; B application of a low viscous, or free-flowing adhesive agent containing a monomer mixture of polymethyl methacrylate, methyl methacrylate, at least one bifunctional methacrylate-based cross-linking monomer, initiator(s), and optionally stabilizers and other additives, including (i) wetting of the surface, (ii) penetration into the depressions which are present, and (iii) formation of a dispersion layer or a film; C at least partially curing the dispersion layer or the film in step B; and D applying a dental composite or an opaque onto the product in step C.

Abstract: One aspect relates to a method for connecting a housing of an active implantable medical device to a head part, whereby an uncured joining agent that is arranged, at least in part, between the housing and the head part is transitioned into a cured joining agent to attain a firmly bonded connection. In one embodiment, the uncured joining agent includes monomers of a (meth)acrylic acid alkyl ester, and the cured joining agent includes at least one polymer of the (meth)acrylic acid alkyl ester.

Abstract: A dental material comprising (a) at least one curable monomer and/or polymer component, and (b) at least one filler component comprising agglomerated oxide particles having a matrix and a doping component, whereby the matrix contains silicon dioxide and the doping component comprises zirconium dioxide, whereby the agglomerated oxide particles are incorporated into the cured polymer matrix of the dental material and are abraded only in layers together with the polymer matrix of the dental material during an abrasion process and do not chip away as individual, intact particles. Moreover, the cured dental material possesses high transparency.

Abstract: The invention relates to a method for the production of an adhesive bond between (a) the surface of dental subframes based on high-performance polymers, and (b) dental composites, by A at least creating retentive anchoring by means of mechanical pre-treatment of the surface of each subframe; B application of a low viscous, or free-flowing adhesive agent containing a monomer mixture of polymethyl methacrylate, methyl methacrylate, at least one bifunctional methacrylate-based cross-linking monomer, initiator(s), and optionally stabilizers and other additives, including (i) wetting of the surface, (ii) penetration into the depressions which are present, and (iii) formation of a dispersion layer or a film; C at least partially curing the dispersion layer or the film in step B; and D applying a dental composite or an opaque onto the product in step C.