ALEXANDRIA, Va., April 7 -- United States Patent no. 12,593,910, issued on April 7, was assigned to Ivoclar Vivadent AG (Schaan, Liechtenstein).

"Method of manufacturing a mouthpiece toothbrush and mouthpiece toothbrush" was invented by Hendrik John (Buchs, Switzerland), Christian Niedrig (Azmoos, Switzerland), Theresa Sujata Maria Senti (Triesenberg, Liechtenstein), Martina Hauner-Westphal (Feldkirch, Austria) and Tatiana Glebova (Buchs, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing a mouthpiece toothbrush is provided, in which at least one dental arch of the patient for whom the toothbrush is intended is scanned to generate scan data, or an impression of the dental arch ...