Zirkonzahn has acquired a licence to 3M's patented technology that enables the colouring of zirconia-based dental restorations. This technology improves aesthetics for patients by enabling the colour matching of dental restorations to the natural colour of the patientsâ teeth. The agreement resolves a nearly two-year patent infringement lawsuit between the two companies in DÃ¼sseldorf, Germany. 3M says it is open to licensing this technology to other dental manufactures and interested parties.
As the next step in protecting 3Mâs patented technology, 3M has filed a patent infringement lawsuit in DÃ¼sseldorf against Ivoclar Vivadent regarding its non-shaded zirconia CAD/CAM blocks and colouring liquids sold under the IPS e.max ZirCAD brand.