Patent ID: 7172424

Claim:
A method of mounting a removable restoration tooth on a natural tooth to be restored, said method comprising the following steps of: (a) making 32 plastic inner crowns corresponding to 32 permanent teeth of a human, 32 metal outer crowns corresponding to the 32 plastic inner crowns, and 32 abutment conformation device units corresponding to the 32 plastic inner crowns; (b) forming an abutment on the natural tooth such that the abutment fits into a hollow interior of one of the 32 abutment conformation device units corresponding to the natural tooth; (c) making a matrix of the abutment; (d) selecting a plastic inner crown from the 32 plastic inner crowns such that the plastic inner crown is corresponding to the natural tooth; (e) holding the plastic inner crown with the chuck of a holding device and locating the abutment matrix on a platform of the holding device; (f) fitting the plastic inner crown over the abutment matrix for dressing the plastic inner crown according to the gum line of the abutment matrix; (g) making a metal inner crown according to the dressed plastic inner crown obtained in the stop (f); (h) mounting fixedly the metal inner crown on the abutment of the natural tooth to be restored; (i) selecting a metal outer crown from the 32 metal outer crowns referred to in the step (a) such that the metal outer crown is corresponding to the plastic inner crown, and that the metal outer crown is fitted into the removable restoration tooth; and (j) mounting the restoration tooth on the natural tooth such that the metal outer crown is fitted over the metal inner crown which is fixedly mounted on the abutment of the natural tooth to be restored.