US Patent Issued to Dentsply Sirona on Aug. 4 for "Method for the production of a blank, blank and a dental restoration" (German Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,697,193, issued on Aug. 4, was assigned to Dentsply Sirona Inc. (York, Pa.).

"Method for the production of a blank, blank and a dental restoration" was invented by Markus Vollmann (Gelnhausen, Germany), Lothar Volkl (Goldbach, Germany), Stefan Fecher (Johannesberg, Germany) and Carsten Wiesner (Rockenberg, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method for the production of a blank of a ceramic material, wherein a first ceramic material and then a second ceramic material of different compositions are filled into a mold and wherein the materials are pressed and after pressing are sintered. Thereby, a layer of the ...