Desktop process for producing dental products by means of 3-dimensional plotting

US6939489B2 · kind B2 · utility

Assignee

• Ivoclar Vivadent AG · LI

Inventors

• Norbert Moszner · Eschen, LI
• Armin Burgath · Stockach, DE
• Rolf Mulhaupt · Marly, CH
• Ulrich Salz · Gettorf, DE
• Volker Rheinberger · Vaduz, LI
• Rüdiger Landers · Essen, DE

Key dates

• Filing date: Mar 25, 2002
• Grant date: Sep 6, 2005
• Expiry date: Dec 26, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B33Y80/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A process for fabricating dental form pieces for dental restoration and replacement parts is provided and includes the step of applying a material, on a firm support or a fluid medium, by a three dimensional plotting technology in a layer by layer manner. The material has micro cords and/or micro drops which include at least one of a meltable, polymerizable, polycondensable, and polyaddable constituent element that is an unfilled monomer, a reinforced monomer, oligomer, polymer, or a ceramic element. The process also includes the step of hardening the applied material by cooling of the material, chemical reaction, polymerization with thermal handling, or polymerization by irradiation of the material with UV or visible light.