Abstract: A tooth and gum cleaning tool for cleaning teeth and gums. The tooth and gum cleaning tool includes an elongate handle portion having first and second ends. A sponge portion is coupled to said first end of said handle portion. The sponge portion has an engaging face and a back face opposite the engaging face. The engaging face has a plurality of uniformly spaced ridges extending from it. Also disclosed is a sterilization device for sterilizing the tooth cleaning tool. The sterilization device comprises a housing that has an open top, a closed bottom, and an interior. A sterilizing pad is disposed in the interior of the housing and is porous and has a sterilizing fluid absorbed therein. A lid portion closes the open top of the housing. The sponge portion of the tooth cleaning tool is positionable on the sterilizing pad to permit absorption of the sterilizing fluid by the sponge portion from the sterilizing pad.