US 12,288,291 B2
Method and system for generation of a model for use in a virtual extraction procedure of a targeted extraction object in a patient
Albrecht Schnappauf, Witzschdorf (DE); Benjamin Jaehn, Chemnitz (DE); and Theo Uwimana Perrod, Basel (CH)
Assigned to Institut Straumann AG, Basel (CH)
Filed by Institut Straumann AG, Basel (CH)
Filed on Mar. 12, 2024, as Appl. No. 18/602,433.
Claims priority of application No. 10 2023 106 238.7 (DE), filed on Mar. 13, 2023.
Prior Publication US 2024/0312132 A1, Sep. 19, 2024
Int. Cl. G06T 19/00 (2011.01); A61C 13/00 (2006.01); A61C 13/34 (2006.01); G06T 3/4007 (2024.01); G06T 15/04 (2011.01); G06T 17/00 (2006.01); G06T 19/20 (2011.01)
CPC G06T 17/00 (2013.01) [A61C 13/0004 (2013.01); A61C 13/34 (2013.01); G06T 3/4007 (2013.01); G06T 15/04 (2013.01); G06T 19/20 (2013.01); G06T 2219/2004 (2013.01)] 35 Claims
OG exemplary drawing
 
1. A computer implemented method for automatically generating, by one or more computer processors, a 3-dimensional model for use in a virtual extraction of a targeted extraction object of a patient, the targeted extraction object comprising an object in a patient's anatomy, the method based on each of a surface scan of an anatomical region of the patient's oral cavity and a volumetric density scan of the anatomical region, the anatomical region including at least the targeted extraction object, the method comprising:
receiving a first dataset of labeled surface scan segments, each surface scan segment comprising a 3-dimensional (3D) surface model of a corresponding object recognized and segmented from surface scan data of the surface scan, and each surface scan segment having an associated label identifying the surface scan segment;
receiving a second dataset of labeled volumetric density scan segments, each volumetric density scan segment comprising a 3-dimensional (3D) volumetric density model of a boundary surface of a corresponding object recognized and segmented from volumetric density scan data of the volumetric density scan, and each volumetric density scan segment having an associated label identifying the volumetric density scan segment;
cross-mounting in a common 3D coordinate system, labeled surface scan segments from the first dataset to labeled volumetric density scan segments from the second dataset;
receiving identification of the targeted extraction object;
identifying the 3D volumetric density model associated with the volumetric density scan segment label which corresponds to the identified targeted extraction object;
identifying the 3D surface model associated with the surface scan segment label which corresponds to the identified targeted extraction object;
generating a third dataset comprising a model comprising:
a 3D model of a socket being an equivalent of the identified 3D volumetric density model less portions of the identified 3D volumetric density model co-represented in the identified 3D surface model;
at least a portion of the identified 3D volumetric density model co-represented in the identified 3D surface model and/or at least a portion of the identified 3D surface model co-represented in the identified 3D volumetric density model;
at least a portion of the identified 3D volumetric density model less portions of the identified 3D volumetric density model co-represented in the identified 3D surface model; and/or
at least a subset of the first dataset less portions of the identified 3D surface model co-represented in the identified 3D volumetric density model.