Heraeus Kulzer Gmbh

Heraeus Kulzer Gmbh & Co. Kg

Heraecus Kulzer Gmbh

Albert Erdrich

Novica Savic

Frank Uwe Stange

Teresa Puchalska

Bettina Korthaus

Steffen Oppawsky

Michael Eck

Andreas Grundler

Kurt Reischl

Marcus Hoffmann

Detlef Heindl

Karl-Heinz Renz

Joachim Nagel

Sonja Fremdt

Slawomira Weber-Pelka

Michael Greczmiel

Cornelia Hermann

Claus-Peter Ernst

Frank Stange

Oliver Koschalka

Andreas Piotrowski

Compounds of the formula IR&#x2014;O&#x2014;CO&#x2014;C(&#x2550;CHR)&#x2014;Y&#x2014;O-Q(AH)&#x2003;&#x2003;(I)where A stands for a &#x2014;CO&#x2014; or &#x2014;SO&#x2014; group which together with Hyields AH, Q represents Calkylene, Calkylene interrupted by &#x2014;O&#x2014;, &#x3e;N&#x2014;, or &#x2014;S&#x2014;, or, in given cases, Carylene substituted with Calkyl, Calkoxy or halogen, where in the case of arylene the aryl groups can carry additional acid groups A, Y stands for Calkylene or Calkylene interrupted by &#x2014;O&#x2014;, &#x3e;N&#x2014;, or &#x2014;S&#x2014;, R represents methyl or H, Ris Calkyl, and n assumes the values 1, 2, or 3 are particularly suitable for the production of self-etching dental adhesives.

Hydrolysis-stable monomers with acid groups

A flowable, light-curing underfilling material that is easily visible and distinguishable from the tooth substance. The underfilling material contains

Flowable underfilling material

Dental materials with high abrasion resistance and their use for producing artificial teeth and/or their enamel or cutting areas are described. The materials primarily contain: 

Dental materials with high abrasion resistance

Prosthesis material having improved stability during storage, reduced plaque affinity and improved polishing properties.

Prosthesis material

A process for producing a dental prosthesis wherein an impression is taken of the patient's mouth, a working model is created, a base plate is applied to the working model, an insulating film is applied to the base plate, a tooth arrangement in wax is formed on the base plate, a framework of the teeth is then formed with an investment compound, the wax is then boiled out and replaced with a curable material which is subsequently hardened.

Process for producing a prosthesis and a prosthesis material

Dental embedding material, dental kit and method for making a prosthesis

Photopolymerizable one-component dental material

Porous silicon dioxide glass is proposed as an inorganic filler for polymerizable materials, which has a particle size of 0.5-50 micrometers, a pore size of 20-120 nanometers, a pore volume of 200-1000 mm.sup.3 /g and a BET surface area of 10-100 m.sup.2 /g. The polymer products containing the filler are characterized by a very good resistance to abrasion.

Filler based on silicon dioxide, method for its preparation, and its use

A dental material that contains di- and poly(meth)acrylates and an inorganic filler in the form of a finely divided synthetic crystalline silicic acid with a sheet structure and optionally a very finely ground glass.

Polymerizable dental material

A process for the production of a firmly adhering, moisture-proof coating of plastic on a substrate of metal, ceramic, glass, or polymer by the application of a liquid preparation containing water, solvent, a (meth)acrylate, and a reactive polymer and by solidifying this coating by heating it to a temperature above 100.degree. C. is described. A first preparation is applied to the substrate and at least partially dried; a second preparation is then applied to the partially dried first preparation and at least partially dried. Then the coating is heated to a temperature in the range of 150.degree.-400.degree. C. to solidify it. The first preparation contains:

Process for the production of a firmly adhering, moisture-proof coating

An artificial tooth of polymethacrylate, barium aluminum silicate glass and microfine silicon dioxide is described that imitates the natural tooth in its essential properties, namely mechanical strength and abrasion performance as well as transparency and depth of color. The tooth contains 15 to 35 weight % polymethacrylate, 35 to 75 weight % barium aluminum silicate glass with a mean particle size of from 0.1 to 5 micrometers, and 5 to 25 weight % silicon dioxide with a mean particle size of from 0.01 to 0.2 micrometers. In addition pigments necessary to match cosmetic requirements, are normally added as necessary.

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Bad Nauheim, Germany

Albert Erdrich