Hyperdontia is an oral condition characterized by having an excess number of teeth. A person who develops more than 20 primary teeth or more than 32 permanent teeth has hyperdontia. The additional teeth are referred to as supernumerary teeth.
This reminds me of that scene in Batman Beyond where Bruce explains that he thinks of himself as Batman, not Bruce Wayne -- even on a subconscious level. Turns out all 3 Waynes DID die in the alley that night.