Patent ID: 8366444

Claim:
An artificial tooth, comprising: a plurality of internal crown members, which are respectively adapted to be fitted to a plurality of abutments, the abutments being formed by cutting a single natural tooth; a plurality of connection bars, each of which connects to at least two of the internal crown members; at least one external crown member, which forms therein at least one recess, the recess being formed to correspond to the internal crown members; wherein the external crown member, when fit to the internal crown members, is tightly engaged with the internal crown members; and a retention structure, which comprises: a retention block, which is of a spherical form and is formed on one of the internal crown members, which are adapted to be correspondingly fitted to said plurality of abutments, and a resilient cap, which is formed in one of the at least one recess and including an opening and a fitting chamber formed in communication with each other in said resilient cap, the opening being formed to correspond to the retention block and being smaller than a maximum outside diameter of the retention block, and the fitting chamber being fit over and enclosing an outer circumference of the retention block.