公开(公告)号：US20190236785A1

公开(公告)日：2019-08-01

申请号：US16379907

申请日：2019-04-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Alberto Alvarez ,  Eric S. Hansen ,  Steven C. Demlow ,  Richard E. Raby

IPC: G06T7/00 ,  G06T7/73 ,  G06T7/33 ,  A61C7/00 ,  A61C11/00 ,  A61C9/00 ,  G06T19/20

Abstract: A method for determining virtual articulation from dental scans. The method includes receiving digital 3D models of a person's maxillary and mandibular arches, and digital 3D models of a plurality of different bite poses of the arches. The digital 3D models of the maxillary and mandibular arches are registered with the bite poses to generate transforms defining spatial relationships between the arches for the bite poses. Based upon the digital 3D models and transforms, the method computes a pure rotation axis representation for each bite pose of the mandibular arch with respect to the maxillary arch. The virtual articulation can be used in making restorations or for diagnostic purposes.

公开(公告)号：US20170172713A1

公开(公告)日：2017-06-22

申请号：US15409942

申请日：2015-07-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Alberto Alvarez

IPC: A61C13/00 ,  A61C5/77 ,  A61C13/34 ,  A61C9/00 ,  A61C8/00

Abstract: A method of analyzing a positional relationship between a dental restoration and a dental substructure. The method has steps of scanning a reference area and determining the shape of the dental substructure in its positional relationship to the reference area, and thereby providing a virtual dental substructure model and scanning the reference area along with scanning at least a portion of the dental restoration in fit position with the dental substructure to provide a virtual assembly model. The method further has the step of providing fitting quality information between the dental restoration model and the dental substructure model. The method utilizes superposing of further virtual models to provide the fitting quality information. The method facilitates the assessment of the quality of the fit between a dental restoration and a dental substructure.

公开(公告)号：US10304190B2

公开(公告)日：2019-05-28

申请号：US15196631

申请日：2016-06-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Alberto Alvarez ,  Eric S. Hansen ,  Steven C. Demlow ,  Richard E. Raby

IPC: G06T7/00 ,  A61C7/00 ,  A61C9/00 ,  A61C11/00 ,  G06T7/73 ,  G06T19/20 ,  G06T7/33 ,  A61C19/05

Abstract: A method for determining virtual articulation from dental scans. The method includes receiving digital 3D models of a person's maxillary and mandibular arches, and digital 3D models of a plurality of different bite poses of the arches. The digital 3D models of the maxillary and mandibular arches are registered with the bite poses to generate transforms defining spatial relationships between the arches for the bite poses. Based upon the digital 3D models and transforms, the method computes a pure rotation axis representation for each bite pose of the mandibular arch with respect to the maxillary arch. The virtual articulation can be used in making restorations or for diagnostic purposes.

公开(公告)号：US20180005377A1

公开(公告)日：2018-01-04

申请号：US15196631

申请日：2016-06-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Alberto Alvarez ,  Eric S. Hansen ,  Steven C. Demlow ,  Richard E. Raby

IPC: G06T7/00 ,  A61C7/00 ,  A61C9/00

CPC classification number: G06T7/0016 ,  A61C7/002 ,  A61C9/0053 ,  A61C11/00 ,  A61C19/05 ,  A61C2007/004 ,  G06T7/344 ,  G06T7/74 ,  G06T7/75 ,  G06T19/20 ,  G06T2207/10016 ,  G06T2207/30036 ,  G06T2219/2004 ,  G06T2219/2016

Abstract: A method for determining virtual articulation from dental scans. The method includes receiving digital 3D models of a person's maxillary and mandibular arches, and digital 3D models of a plurality of different bite poses of the arches. The digital 3D models of the maxillary and mandibular arches are registered with the bite poses to generate transforms defining spatial relationships between the arches for the bite poses. Based upon the digital 3D models and transforms, the method computes a pure rotation axis representation for each bite pose of the mandibular arch with respect to the maxillary arch. The virtual articulation can be used in making restorations or for diagnostic purposes.

公开(公告)号：US20220257341A1

公开(公告)日：2022-08-18

申请号：US17626878

申请日：2020-07-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Guruprasad Somasundaram ,  Alexandra R. Cunliffe ,  Benjamin D. Zimmer ,  Brian J. Stankiewicz ,  Nitsan Ben-Gal Nguyen ,  Richard E. Raby ,  Alberto Alvarez

IPC: A61C7/00 ,  G16H50/30

Abstract: This disclosure describes a computer-implemented method and system for evaluating, modifying, and determining setups for orthodontic treatment using metrics computed during virtual articulation. The virtual articulation techniques of this disclosure may further be combined with techniques for determining dynamic collision metrics, determining a comfort measurement, determining treatment efficacy, and/or determining dental conditions, such as bruxism. The techniques of this disclosure further include user interface techniques that provide an orthodontist/dentist/technician with information regarding various treatment plans based on metrics gathered during virtual articulation.

公开(公告)号：US20220246270A1

公开(公告)日：2022-08-04

申请号：US17626152

申请日：2020-07-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Alberto Alvarez ,  Richard E. Raby

IPC: G16H20/40 ,  A61C13/34 ,  A61C11/00

Abstract: The invention relates to a method for determining whether a tooth is correctly shaped and oriented to avoid interference with another tooth using virtual articulation. The method comprises a) receiving data indicative of a virtual dentition of an oral cavity of a patient by a computing device, the data indicative of the virtual dentition including data indicative of at least one of a virtual mandibular arch representing a mandibular arch of the patient or a virtual maxillary arch representing a maxillary arch of the patient; b) receiving data indicating a selected point on the virtual dentition of the oral cavity; and c) determining a tangent vector indicating a direction of motion of the selected point and determining whether the orientation of a tooth of the virtual dentition or the shape of the tooth is correctly shaped and oriented based on the determined tangent vector, wherein the tangent vector is based on a rotational axis of the virtual mandibular arch.

公开(公告)号：US10529073B2

公开(公告)日：2020-01-07

申请号：US16379907

申请日：2019-04-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Alberto Alvarez ,  Eric S. Hansen ,  Steven C. Demlow ,  Richard E. Raby

IPC: G06T7/00 ,  A61C11/00 ,  G06T7/73 ,  G06T19/20 ,  G06T7/33 ,  A61C7/00 ,  A61C9/00 ,  A61C19/05

Abstract: A method for determining virtual articulation from dental scans. The method includes receiving digital 3D models of a person's maxillary and mandibular arches, and digital 3D models of a plurality of different bite poses of the arches. The digital 3D models of the maxillary and mandibular arches are registered with the bite poses to generate transforms defining spatial relationships between the arches for the bite poses. Based upon the digital 3D models and transforms, the method computes a pure rotation axis representation for each bite pose of the mandibular arch with respect to the maxillary arch. The virtual articulation can be used in making restorations or for diagnostic purposes.