ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,433,722, issued on Oct. 7.
"Taking an optical impression of a patient's dental arch" was invented by Olivier Querbes (Vallesvilles, France) and Veronique Querbes-Duret (Vallesvilles, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "By combining the wide field of the image sensor of a smartphone (61) or the like, with the precision of the image sensor of an IOS (62) or the like, the process of generating a three-dimensional reconstruction of a patient's dental arch, referred to as extended optical impression, is improved and simplified. More specifically, the practitioner can take, in a single image, a global but not very precise 3D reconstruction (3...