Systems and methods for constructing a three-dimensional model from two-dimensional images

A method comprising:

• receiving, by a processing circuit, from a portable computing device of a user, one or more two-dimensional (2D) images of a dental arch of the user corresponding to an intermediate stage of a treatment plan, wherein the one or more 2D images comprise color photographs captured by the portable computing device of the user;
• generating, by the processing circuit, using a machine-learning model trained using pairs of color intraoral photographs and corresponding 3D surface meshes of dental arches to generate three-dimensional (3D) dental arch models from 2D input images, a 3D model of the dental arch of the user based on the one or more 2D images;
• comparing, by the processing circuit, the 3D model of the dental arch of the user to a target 3D model of the dental arch corresponding to the user and the intermediate stage of the treatment plan;
• and
• providing, by the processing circuit and to the user by the portable computing device of the user, an indication that the treatment plan requires modification based on the comparison.

A non-transitory computer-readable medium storing instructions that, when executed by one or more computer processors of one or more computing devices, cause the one or more computing devices to perform operations comprising:

• receive, from a portable computing device of a user, one or more two-dimensional (2D) images of a dental arch of the user corresponding to an intermediate stage of a treatment plan, wherein the one or more 2D images comprise color photographs captured by the portable computing device of the user;
• generate, using a machine-learning model trained using pairs of color intraoral photographs and corresponding 3D surface meshes of dental arches to generate three-dimensional (3D) dental arch models from 2D input images, a 3D model of the dental arch of the user based on the one or more 2D images;
• compare the 3D model of the dental arch of the user to a target 3D model of the dental arch corresponding to the user and the intermediate stage of the treatment plan;
• and
• provide, to the user by the portable computing device of the user, an indication that the treatment plan requires modification based on the comparison.