Abstract: An object is to provide an artificial tooth that can be attached to a denture base designed by CAD/CAM to be formed easily and accurately when the artificial tooth is arranged on the denture base. In an artificial tooth (21) that has a shape corresponding to a denture base that is designed on CAD based on three-dimensional data and is cut out, a regulator (21a to 21h) that regulates the rotation on the axis of the tooth as the center is provided for a portion to touch the denture base, and the regulator has a shape so as not to engage with the denture base in the direction of the axis of the tooth.