Method for determining a mapping of contacts 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 kinetics recorded on the patient, said mandibular kinetics being recorded by locating and by recording, by means of a camera, the displacements of markers attached on the one hand to the forehead of the patient and on the other hand to the mandibular arch, during mandibular movements of 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 kinetics, 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, - for each node of said reduced mesh, determining, using the network of contacts, the existence or not of a contact between said node and a node of the mesh of the opposite arch, - applying a colour representative of the existence of a contact to each cell comprising a node for which a contact has been detected, and - displaying said colour on each respective cell of the mesh of the arch, so as to form a map of the contacts between the teeth of the two arches. - applying the mandibular kinetics to animate the meshes of the arches and updating the display of colour during this animation. - obtaining the mandibular kinetics recorded on the patient, said mandibular kinetics being recorded by locating and by recording, by means of a camera, the displacements of markers attached on the one hand to the forehead of the patient and on the other hand to the mandibular arch, during mandibular movements of 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 kinetics, 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, - for each node of said reduced mesh, determining, using the network of contacts, the existence or not of a contact between said node and a node of the mesh of the opposite arch, - applying a colour representative of the existence of a contact to each cell comprising a node for which a contact has been detected, and - displaying said colour on each respective cell of the mesh of the arch, so as to form a map of the contacts between the teeth of the two arches. - applying the mandibular kinetics to animate the meshes of the arches and updating the display of colour during this animation.