Disclosed herein are an apparatus and method for generating an image of corrected teeth. The apparatus includes: a control unit configured to generate dental curves representative of dental arches after the completion of correction from an image of teeth, and to generate an image of corrected virtual teeth by aligning the locations of the teeth with the dental curves; and an input/output unit configured to provide the image of corrected virtual teeth via a screen. The control unit is further configured to model the dental curves with functions corresponding to sets of teeth.