Dens in dente are a relatively rare tooth deformity. Canine dens are particularly rare. The dens or “tooth within a tooth” presents problems in that the canal systems are highly irregular, challenging to disinfect, and difficult to fill. Often times surgery is necessary. In this case we were patient with the patient, used calcium hydroxide for a while and got a good result. Glad they aren’t all like this. Complete resolution in 3D with my eyes.