Method and system for generation of a model for use in a virtual extraction procedure of a targeted extraction object in a patient

A computer implemented method for automatically generating, by one or more computer processors, a 3-dimensional model for use in a virtual dental treatment planning procedure of an object of a patient targeted for treatment, 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 object targeted for treatment, 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 object targeted for treatment;
• identifying the 3D volumetric density model associated with the volumetric density scan segment label that corresponds to the identified object targeted for treatment;
• identifying the 3D surface model associated with the surface scan segment label that corresponds to the identified object targeted for treatment;
• and
• generating a third dataset comprising a model including a representation of at least parts of the anatomical region of the patient's oral cavity including or excluding the object targeted for treatment.