Heraeus Kulzer Gmbh

Kulzer Gmbh

Heraeus Quarzglas Gmbh

Heraeus Quarzglas Gmbh & Co Kg

Heraeus Precious Metals Gmbh & Co. Kg

Heraeus Kutzer Gmbh

Klaus Ruppert

Alfred Hohmann

Anton Steinkohl

Stephan Dekert

Uwe Christiansen

Mario Beyer

Klaus Dittmer

Sebastian Vogt

Heiko Specht

Andreas Reisinger

Michael Eck

Andreas Grundler

Kurt Reischl

Jutta Schneider

Hartwig Schaper

Yohannes Woldegergis

Uwe Boehm

Nelli Schönhof

Uwe Böhm

Christian Bauer

Heinz Bauscher

Yanyan Habeck

Kevin Kerscher

Gerhard Kotulla

Christine Diefenbach

Lutz Vocke

Matthias Schaub

Stefan Brill

Andrea Hambach

Uwe BÖHM

Alexander Schnack

A polymerizable adhesive composition containing an olefinically functionalized carbohydrate, a polymerizable liquid monomer, and optionally at least one polymerization initiator or initiator system is described. The adhesive composition is particularly well suited for adhering plastic components as well as is preferably provided with sufficiently long processing time for adhering artificial teeth on denture bases. The viscosity of the adhesive composition may be adjusted to the respected processing conditions.

Adhesive having a long processing time and stable viscosity

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&#xb0; C. to 150&#xb0; C. for at least 90 minutes; and obtaining a dental, polymerized block of material having defined three-dimensional geometry.

Method for producing large polymerised dental material blocks

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.

Auto-polymerizable prosthetic material and polymerized, fracture-tough prosthetic material with increased colour stability

A method for producing a dental prosthesis, the method including the following steps: affixing several prefabricated prosthetic teeth in a support; producing a prosthetic base according to a virtual model with a CAM method to create tooth sockets that lie parallel to each other; processing the prosthetic teeth basally and adjacent cervically while held in the support in accordance with the virtual model using a CAM method, so that the roots of the prosthetic teeth produced lie parallel to each other when the prosthetic teeth are inserted into the prosthetic base; and, inserting the processed prosthetic teeth together or in groups into the tooth sockets of the prosthetic base and attaching the processed prosthetic teeth in the tooth sockets. Also provided are a dental prosthesis produced by the method and a device for implementing the method.

Method for producing a dental prosthesis with parallel roots of the prosthetic teeth

The invention relates to a method for producing a dental prosthesis, wherein the dental prosthesis comprises a prosthetic base and a plurality of prosthetic teeth, wherein the method is carried out with the use of a virtual three-dimensional dental prosthesis model of the dental prosthesis which is to be produced, and wherein the virtual three-dimensional dental prosthesis model comprises virtual prosthetic teeth and a virtual prosthetic base, including the following chronological steps: The invention also relates to a dental prosthesis produced with such a method and a device for carrying out such a method.

Production of a dental prosthesis by printing prosthetic base onto prosthetic teeth

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&#xb7;mand a fracture work of greater than or equal to 900 J/m. 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.

Mill blanks based on a polymerized, fracture-tough prosthesis material

The invention relates to a process for producing a dental prosthesis with the chronological steps: The invention also relates to a dental prosthesis produced using such a process and a kit to carry out such a process.

Method for producing a dental prosthesis

A method for automated manufacture of dentures including providing a digital data set of the individual denture to be produced, a digital separation of the model into dental arch and gingival, producing the dental arch from a ceramic or plastic material using cutting technology, producing the denture base through generative or ablative procedures from predominantly (meth-)acrylate-based plastic materials, connecting the dental arch and gingiva through bonding or joining or a combination of bonding and joining.

Production of individual dental prostheses via CAD/CAM and rapid manufacturing/rapid prototyping from data of the digital impression

Production of a negative mould for use in producing of a dental prosthesis, a temporary or permanent crown or bridge

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

Dental adhesive agent for high-performance polymers

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.

Active implantable device

Containers that are soluble in liquid methylmethacrylate and contain the PMMA powder fraction of a two-component system made up of PMMA powder component and liquid MMA monomer component are useful as components of packaging of powder/liquid two-component material, such as dental material, investment material for histology or metallography or in veterinary medicine.

Container containing the PMMA powder fraction of a two-component system made up of PMMA powder component and MMA monomer component

A process by means of which the colonization by plaque on dental materials can be permanently prevented or delayed without the product properties of the dental material being negatively influenced. The process involves equipping the dental material with anti-plaque substance, namely at least one molecularly dispersely distributed octenidine salt or dequalinium salt. Also disclosed is a dental material so equipped.

Dental materials equipped with active anti-plaque substance(s)

For composite materials having a total filler content of 80 to 95% by weight, containing

Composite materials having a low shrinkage force

The invention relates to a method for producing a silica glass tube which is characterized by depositing SiOparticles on an elongate support that rotates about its longitudinal axis, thereby producing a porous with a cylindrical inner bore. Said blank is vertically aligned, suspended in a furnace using a suspension that engages with a constriction in the upper zone of the inner bore of the blank, and vitrified. The aim of the invention is to provided a method with which also heavy blanks can be secured safely and substantially without any danger of contaminations of the inner bore without using complicated securing devices. To this end, the constriction () is generated by shaping the inner bore () when the SiOparticles are deposited. For vitrification a suspension () is used that supports itself on the constriction () and that otherwise projects into the cylindrical inner bore () without having any contact therewith.

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Maintal, Germany

Klaus Ruppert