Abstract: Method for segmenting a digital model (4) of teeth comprising a three-dimensional triangular mesh (41), wherein automatic means (6) implement the following steps, which are referred to as initial steps: classifying, within the mesh (41), at least one triangle into a concave category and/or at least one triangle into a convex category, and identifying, within the mesh (41), at least one tooth region comprising triangles such that each triangle of the region has at least one neighbouring triangle in the region, all the triangles of the region belonging to neither the convex nor the concave category.

Abstract: Method for segmenting a digital model (4) of teeth comprising a three-dimensional triangular mesh (41), wherein automatic means (6) implement the following steps, which are referred to as initial steps: classifying, within the mesh (41), at least one triangle into a concave category and/or at least one triangle into a convex category, and identifying, within the mesh (41), at least one tooth region comprising triangles such that each triangle of the region has at least one neighbouring triangle in the region, all the triangles of the region belonging to neither the convex nor the concave category.

Abstract: Disclosed is an illumination device for an apparatus for establishing the color of a tooth, including in the mouth, the illumination device including a support with a lens system that includes at least one lens, an illumination unit, image capturing unit, and a front protection. The illumination unit is arranged at the periphery of the visual field of the lens system.