(1) A hydroxyapatite, crystal-based paste containing synthetic tooth enamel capable of sealing small cavities without drilling being developed in Japan in 2005.
(2) A hypothetical calcium and phosphorus-based dentifrice to be used to manage cavities by rebuilding the tooth surface
This term got 10 hits on 19/08/2013. It is reasonable to assume that it is not available commercially.
References Wired 6/97, p78