Abstract: The present disclosure provides method for generating a three-dimensional (3D) model of a dental structure of a subject. The method comprises: capturing image data about the dental structure of the subject using a camera of a mobile device; constructing a first 3D model of the dental structure from the image data; registering the first 3D model with an initial 3D surface model to determine a transformation for at least one element of the dental structure; and updating the initial 3D surface model by (i) applying the transformation to update a position of the at least one element and/or (ii) deforming a surface of a local area of the at least one element using a deformation algorithm.