METHOD OF DETERMINING AN ORTHODONTIC TREATMENT

    公开(公告)号:US20220346914A1

    公开(公告)日:2022-11-03

    申请号:US17867502

    申请日:2022-07-18

    Abstract: A method of determining an optimal switchover moment for a hybrid orthodontic treatment of teeth. Creation of a digital three-dimensional model of at least part of a dental arch. Deformation of the initial reference model until the tooth models are in a target position. Acquisition of at least one two-dimensional image of the teeth. Deformation of the initial reference model until the at least one updated image corresponds to the initial reference model. Determination, from the updated reference model and from said target reference model, of a plurality of remaining-treatments for moving the teeth from their position represented in the updated reference model into their position represented in the target reference model. Determination of a profile including at least one value for an evaluation parameter. Evaluation of each profile by an evaluation rule. Determination the profile of which is optimal for replacing an orthodontic appliance with an aligner.

    METHOD FOR CUTTING A MODEL OF A DENTAL ARCH

    公开(公告)号:US20210272281A1

    公开(公告)日:2021-09-02

    申请号:US17259519

    申请日:2019-07-10

    Abstract: Method for cutting a three-dimensional model of a dental scene, or “scene model.” The method includes acquiring a view of the scene model, called the “analysis view.” The method includes analyzing the analysis view by a neural network in order to identify, in the analysis view, at least one elementary zone representing an element of the dental scene, and assigning a value to at least one attribute of the elementary zone. The method includes identifying a region of the scene model represented by the elementary zone on the analysis view, and assigning, in the region, a value to an attribute of the scene model in accordance with the value of the attribute of the elementary zone.

    Method for analyzing an image of a dental arch

    公开(公告)号:US10755409B2

    公开(公告)日:2020-08-25

    申请号:US16031201

    申请日:2018-07-10

    Abstract: A method for acquiring an image of a dental arch of a patient. Activation of an image acquisition apparatus so as to acquire an analysis image of the arch. Analysis of the analysis image by a deep learning device trained by a learning base. Determination, for the analysis image, as a function of the results of the analysis, of a value for an image attribute. Comparison of the image attribute value with a setpoint. Sending of an information message as a function of the comparison, the information message being related to the quality of the image acquired and/or to the position of the acquisition apparatus in relation to said arch and/or to the setting of the acquisition apparatus and/or to the opening of the mouth and/or to the wearing of a dental appliance.

    Method for analyzing an image of a dental arch

    公开(公告)号:US10685259B2

    公开(公告)日:2020-06-16

    申请号:US16030032

    申请日:2018-07-09

    Abstract: A method for enriching a learning base intended for the training of a deep learning device. Production of an updated reference model of a dental arch and segmentation to produce a tooth model for each tooth. Acquisition of at least one updated image of the arch. For each updated image, search for virtual acquisition conditions suitable for an acquisition of a reference image of the updated reference model exhibiting a maximum match with the updated image, and acquisition of the reference image. Identification, in the reference image, of at least one reference tooth zone representing a tooth model by comparison of the updated image and the reference image determination of an updated tooth zone representing the tooth model. Assignment, to the updated tooth zone, of the tooth attribute value or values of the tooth model. Addition of the updated image enriched with value or values in the learning base.

    Dentition control method
    28.
    发明授权

    公开(公告)号:US12295807B2

    公开(公告)日:2025-05-13

    申请号:US18139524

    申请日:2023-04-26

    Abstract: A system for manufacturing an orthodontic appliance. A scanner for creating a numerical three-dimensional initial reference model of at least a part of a patient's arch including one or more teeth. An image acquisition device for acquiring at least one two-dimensional updated image of the arch. The image acquisition device is positioned and oriented in space, relative to the teeth, under actual acquisition conditions. A computer for creating a numerical three-dimensional objective reference model, corresponding to a desired positioning, at a time point of a treatment, of the teeth, and deforming the initial reference model by moving one or more teeth of the initial reference model, to obtain an updated reference model corresponding to the positioning of the teeth on the two-dimensional updated image. A device for manufacturing an orthodontic appliance, based on a comparison, executed by the computer, between the updated reference model and the objective reference model.

    SPACER FOR DENTAL ACQUISITION
    29.
    发明申请

    公开(公告)号:US20250120585A1

    公开(公告)日:2025-04-17

    申请号:US18719146

    申请日:2022-12-12

    Abstract: A one-piece spacer for acquisition, with a mobile phone, of 2D or 3D representations of teeth of a user, the spacer comprising a tubular part having a longitudinal axis, the tubular part—having a length greater than 3 cm,—opening out via an acquisition opening and via an oral opening, being designed to be fixed detachably to the mobile phone in an acquisition position in which an optical objective of the mobile phone has an at least partial view of the oral opening through the acquisition opening, and—comprising a non-deformable portion, which opens out via the acquisition opening, and, in the continuation of the non-deformable portion, a deformable portion, which opens out via the oral opening and is deformable between a rest configuration in which the oral opening has a maximum area and a contracted configuration in which the oral opening has a minimum area.

    METHOD OF EVALUATING AN ORTHODONTIC APPLIANCE

    公开(公告)号:US20240335256A1

    公开(公告)日:2024-10-10

    申请号:US18293938

    申请日:2022-08-05

    CPC classification number: A61C7/002 A61C9/004 A61C7/08 A61C7/10 A61C7/12

    Abstract: A system for evaluating an orthodontic appliance. A mobile telephone for, at an “appliance” instant, acquisition of at least one two-dimensional image (“appliance image”) of teeth at least partially representing the appliance in a service position worn by the teeth, and, at a “dentition” instant, acquisition of at least one two-dimensional image (“dentition image”) of the teeth. A computer programmed to execute, for each of a plurality of teeth represented on the at least one dentition and appliance images, the following: determination of dental and appliance attributes relative to the shape of a tooth represented on the at least one dentition image and relative to the shape of the orthodontic appliance on the at least one appliance image, respectively, and comparison of the dental and appliance attributes, followed by determination of at least a decision or at least one score according to the comparison.

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