The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2025
Filed:
Apr. 17, 2020
Dentsply Sirona Inc.;
Sirona Dental Systems Gmbh, Bensheim, DE;
Dentsply Sirona Inc., York, PA (US);
Abstract
The present invention relates to a method of metal artefact reduction in x-ray dental volume tomography, the method comprising: a step (S) of obtaining two-dimensional x-ray images () or a sinogram () of at least part (v) of a patient jaw (), acquired through relatively rotating an x-ray source () and a detector () around the patient jaw (); the method being characterized by further comprising: a step (S) of detecting metal objects () in the two-dimensional x-ray images () or the sinogram () by using at least a trained artificial intelligence algorithm to generate 2D masks () which represent the metal objects () in the two-dimensional x-ray images () orD masks which represent the metal objects () in the sinogram (), respectively; and a step (SS) of reconstructing a three dimensional tomographic image () respectively based on two-dimensional x-ray images () or the sinogram () and the 2D masks () or the 3D masks as generated.