Invention Grant
- Patent Title: Method for determining a mapping of the contacts and/or distances between the maxillary and mandibular arches of a patient
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Application No.: US15560707Application Date: 2016-03-25
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Publication No.: US10582992B2Publication Date: 2020-03-10
- Inventor: Maxime Jaisson
- Applicant: MODJAW
- Applicant Address: FR Ste Helene du Lac
- Assignee: MODJAW
- Current Assignee: MODJAW
- Current Assignee Address: FR Ste Helene du Lac
- Agency: Womble Bond Dickinson (US) LLP
- Priority: FR1552508 20150325
- International Application: PCT/FR2016/050676 WO 20160325
- International Announcement: WO2016/151263 WO 20160929
- Main IPC: A61C19/05
- IPC: A61C19/05 ; G06T17/20

Abstract:
The invention relates to a method for determining a mapping of the contacts and/or distances between the teeth of the maxillary arch and the mandibular arch of a patient, characterised in that it comprises the following steps: obtaining the mandibular kinematics recorded on the patient; obtaining surface meshes of the maxillary arch and the mandibular arch and registering said meshes relative to one another; creating a reduced mesh of at least one of said arches, comprising the selection, in the mesh of said arch, of the cells in which the nodes are located at a distance of less than 1 cm from the mesh of the opposite arch; creating, for each cell of said reduced mesh, a bounding box comprising a plurality of voxels surrounding said cell; using the mandibular kinematics, calculating a network of contacts comprising, for each voxel of the bounding box, information on the existence of a contact between said voxel and a node of the mesh of the opposite arch during a relative movement of the mandibular arch in relation to the maxillary arch.
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