1. A method for estimating teeth wear, comprising steps of: receiving a 3D digital model of teeth; segmenting the 3D digital model of teeth to identify individual tooth within the 3D digital model of teeth and generate a segmented 3D digital model of teeth; selecting a digital model of a tooth from the segmented 3D digital model of teeth; predicting an original shape of the selected tooth to obtain a digital model of a predicted original shape; and comparing the digital model of the tooth with the digital model of the predicted original shape to estimate wear areas in the selected tooth.