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公开(公告)号：US12048607B2
公开(公告)日：2024-07-30
申请号：US18086623
申请日：2022-12-21
申请人： Oxilio Ltd
CPC分类号： A61C7/002 , G06T17/20 , G06T19/20 , G16H30/40 , A61C2007/004
摘要： A method and a system for determining an orthodontic treatment plan including a tooth stripping step are provided. The method comprises: acquiring a 3D digital model of a first tooth and a second tooth of the subject, the second tooth being adjacent the first tooth; receiving a stripping request for stripping tooth material, from at least one of the first tooth along a first stripping plane and the second tooth along a second stripping plane; determining, along a surface of the first tooth, a first area of interest; determining, along the surface of the second tooth, a second area of interest; determining a distance between a first set of vertices associated with the first area of interest and a second set of vertices associated with the second area of interest; in response to the distance being greater than a predetermined distance threshold, denying, by the processor, the stripping request.
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公开(公告)号：US11850112B2
公开(公告)日：2023-12-26
申请号：US17366605
申请日：2021-07-02
申请人： Oxilio Ltd
CPC分类号： A61C7/002 , A61C7/08 , G06F30/00 , A61C2007/004
摘要： A method and system for determining a cut line of an aligner are provided. The method comprises: obtaining 3D model data of a plurality of teeth and a gingiva of a subject; obtaining, using the 3D model data, for each one of the plurality of teeth, a respective one of a plurality of intersection loops; translating each one of the plurality of segmentation loops at a predetermined distance from the gingiva to generate a plurality of offset segmentation loops; identifying, within each one of the plurality of offset segmentation loops, a respective buccal portion and a respective lingual portion; sequentially joining respective buccal portions and respective lingual portions associated with each one of the plurality of offset intersection loops, thereby generating a single arch form loop; and applying the single arch form loop to an unfinished aligner to indicate the cut line on the unfinished aligner for producing the aligner.
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公开(公告)号：US11386634B2
公开(公告)日：2022-07-12
申请号：US17151953
申请日：2021-01-19
申请人： Oxilio Ltd
摘要： A method and a system for determining an orthodontic treatment for a subject are provided. The method comprises: acquiring a raw 3D representation of a subject's arch form comprising a 3D mesh having a plurality of mesh elements further comprising: constrained mesh elements associated with a defined portion; unconstrained mesh elements initially associated with an undefined portion; generating a set of confirmed constrained mesh elements for providing the augmented 3D representation of the given tooth by: iteratively, for a given constrained mesh elements, identifying at least one associated unconstrained mesh element adjacent to the given constrained vertex in the 3D mesh, and based on an associated smoothness parameter, identifying the at least one associated unconstrained mesh element either to be a constrained mesh element or an unconstrained mesh element; causing display of the augmented 3D representation of the given tooth based on the set of confirmed constrained mesh elements.
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公开(公告)号：US11253338B2
公开(公告)日：2022-02-22
申请号：US16998356
申请日：2020-08-20
申请人： Oxilio Ltd
摘要： Methods, systems, and apparatuses are described for determining deformation of gingiva. A three-dimensional (3D) digital model of an archform comprising a representation of gingiva and a tooth may be received. The 3D model may comprise a 3D mesh describing a surface of the gingiva, the tooth, and a contour between the gingiva and the tooth. A tooth-movement displacement may be applied to the vertices corresponding to the tooth in the 3D mesh and the vertices corresponding to the contour. A vertex-specific displacement may be determined for each of the vertices corresponding to the gingiva by solving a harmonic equation. The 3D digital model may be updated.
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公开(公告)号：US11213373B1
公开(公告)日：2022-01-04
申请号：US17320666
申请日：2021-05-14
申请人： Oxilio Ltd
摘要： A method for modeling mandibular motion, executable by an electronic device and including: acquiring a point cloud representing a mandible; determining an initial condyle pose; determining natural movement parameters for the condyles including maximum protrusion displacement, a Bennett angle, and a Sagittal inclination path angle; receiving an indication of a translation and/or a rotation of the mandible; determining a first natural movement of translation including a protrusion followed by a first sagittal inclination; determining a second natural movement of rotation including a Bennet movement followed by a second sagittal inclination; applying the natural movement s to the point cloud to form a transformed point cloud; creating a model of the mandible having undergone the at least one of the translation and the rotation using the transformed point cloud; and displaying the model of the mandible having undergone the translation and/or rotation.
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公开(公告)号：US11191618B1
公开(公告)日：2021-12-07
申请号：US17143074
申请日：2021-01-06
申请人： Oxilio Ltd
摘要： A method and a system for manufacturing an orthodontic appliance are provided. The method comprises: receiving a 3D mesh including a plurality of inner vertices representative of an inner surface of the appliance; generating a reference plane positioned relative to the arch form 3D mesh according to a predetermined position; determining, based on the 3D mesh, for each one of the plurality of inner vertices, a respective distance to the reference plane, the respective distance being indicative of a thickness of the appliance after forming; generating, based on the respective distance, a plurality of outer vertices representative of an outer surface of the appliance; generating, based on the plurality of inner vertices and the plurality of outer vertices, an appliance 3D representation of the appliance including data indicative of the thickness of the appliance; causing the manufacturing of the appliance based on the appliance 3D representation.
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公开(公告)号：US11058515B1
公开(公告)日：2021-07-13
申请号：US17143085
申请日：2021-01-06
申请人： Oxilio Ltd
摘要： A method and a system for determining a cut line of an aligner are provided. The method comprises: obtaining 3D model data of a plurality of teeth and a gingiva of a subject; obtaining, using the 3D model data, for each one of the plurality of teeth, a respective one of a plurality of individual intersection loops; segmenting, based on a predetermined rule, each one of the plurality of individual intersection loops into at least a buccal portion and a lingual portion; sequentially joining respective buccal portions and respective lingual portions associated with each one of the plurality of individual intersection loops, thereby generating a single arch form loop; smoothing the single arch form loop, thereby generating a smoothed single arch form loop; and applying the smoothed single arch form loop to an unfinished aligner to indicate the cut line on the unfinished aligner for producing the aligner.
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公开(公告)号：US20210169610A1
公开(公告)日：2021-06-10
申请号：US16703375
申请日：2019-12-04
申请人： Oxilio Ltd
摘要： A methods and processors for generating a 3D-representation of a tooth-specific dental appliance are disclosed. The appliance has a grooved body and a pair of holding arms. The method includes acquiring a 3D-platform representation, acquiring a 3D-grooved body representation, and positioning the 3D-grooved body representation relative to the 3D-platform representation. The method also includes acquiring a first and second 3D-arm representations, each having a respective pair of platform anchor points and a respective adjustment anchor point. The method also includes individually positioning the first and second 3D-arm representations relative to the 3D-platform representation using the respective pairs of platform anchor points, thereby defining preliminary positions of the first and second 3D-arm representations. The method includes individually adjusting the respective preliminary positions relative to the 3D-grooved body representation using the respective adjustment anchor points, thereby defining adjusted positions of the first and second 3D-arm representations.
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公开(公告)号：US11026767B1
公开(公告)日：2021-06-08
申请号：US16936937
申请日：2020-07-23
申请人： Oxilio Ltd
摘要： A method and a system for determining an orthodontic treatment for a subject are provided. The method comprises: acquiring a 3D representation of the crown portion of the given tooth, generating a 3D representation of the root portion of the given tooth by executing the steps of: generating, in a reference plane dissecting the predetermined longitudinal tooth axis and based on the 3D representation of the crown portion, a closed curve on the 3D representation of the crown portion, segmenting the closed curve into a plurality of sub-curves; for each one of the plurality of sub-curves, generating a respective segment of the 3D representation of the root portion; merging the 3D representation of the crown portion with the 3D representation of the root portion, thereby generating the 3D representation of the given tooth; and determining, based on the 3D representation of the given tooth, the orthodontic treatment for the subject.
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公开(公告)号：US10751149B1
公开(公告)日：2020-08-25
申请号：US16793468
申请日：2020-02-18
申请人： Oxilio Ltd
摘要： Methods, systems, and apparatuses are described for determining deformation of gingiva. A three-dimensional (3D) digital model of an archform comprising a representation of gingiva and at least one tooth may be received. The 3D model may comprise a 3D mesh describing a surface of the gingiva and the at least one tooth. The 3D mesh may be separated into a gingiva mesh and a tooth mesh. A set of shared vertices in the gingiva mesh and the tooth mesh may be identified. A tooth-movement displacement may be applied to the vertices in the tooth mesh and the vertices in the set of shared vertices. A vertex-specific displacement may be determined for the remaining vertices in the gingiva mesh by solving a harmonic equation. The 3D model may be updated.
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