US 2022/0175491 A1Published application

Method for estimating and viewing a result of a dental treatment plan

AssigneeDeepsmile Technology

InventorsAchraf BEN-HAMADOU, Ahmed REKIK, Hugo SETBON

Life of this patent

Estimating the term…

Loading patent…

Abstract

The method (100) for estimating and viewing a result of a dental treatment plan comprises: a step (105) of reconstructing, in a virtual space in three-dimensions, the shape of the face of a patient, a step (125) of reconstructing, in the virtual space in three-dimensions, the dentition of a patient, a step (142) of assembling the reconstructed shape of the face and the reconstructed dentition in the virtual space in three-dimensions, a step (145) of determining at least one dental treatment plan depending on the modeled dentition and face, a step (150) of selecting a treatment plan from the set of determined treatment plans, a step (155) of computing an image of how the face of the patient will look after the dental treatment depending on an image of the face of the patient and on the selected treatment plan and a step (160) of displaying the computed image.

Claims13

Dependent claims

A method for estimating and viewing a result of a dental treatment plan, comprising:

a step of positioning retractors in a patient's mouth;
a step of reconstructing a patient's face shape in a first 3D virtual space;
comprising:
a first step of capturing, by an RGB-D capture device, at least one image of the patient's face;
and
a first step of fitting the shape of at least one portion of the patient's face onto a parametric face shape model based on at least one captured image of the face;
a step of reconstructing the dentition of a patient in a second 3D virtual space, comprising:
a step of capturing, by a capture device, an image of the dentition of the patient;
a step of computing a probabilistic contour map of at least one tooth of the dentition based on at least one captured image;
and
a step of modeling the 3D shape of at least one tooth based on a probable position of at least one contour;
a step of assembling the reconstructed face shape and the reconstructed dentition in a common 3D virtual space;
a step of removing retractors from the patient's mouth;
a second step of capturing an image of the patient's face shape;
a second step of fitting the patient's face shape onto a parametric face shape model based on at least one image of the face captured during the second capture step, in a 3D space;
a step of positioning the modeled dentition in the 3D virtual space of the face shape fitted during the second fitting step;
a step of determining at least one dental treatment plan based on both the modeled dentition and face shape;
a step of selecting a treatment plan from the set of determined treatment plans;
a step of computing an image of how the patient's face will look after the dental treatment based on an image of the patient's face and on the selected treatment plan;
and
a step of displaying the computed image.

18 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/310,578Filed 24 Feb 2020
Priority: FR 190183722 Feb 2019
Published: 9 Jun 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

A61C 7/002
Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by…:…
A61C 9/0053
Data acquisition means or methods: optical means or methods, e.g. scanning the teeth by a laser or light beam
A61C 13/34
Dental prostheses; Making same: making or working of models, e.g. preliminary castings, trial dentures; Dowel pins [4]
G06T 19/20
Manipulating three-dimensional [3D] models or images for computer graphics: editing of three-dimensional [3D] images, e.g. changing shapes or…