Abstract: In a toothbrush which comprises, as usual, a handle and a bristle-carrying portion at one end of said handle, there are provided water dispensing jets or bores in correspondence of said bristle-carrying portion, between the bristle tufts. Said jets or bores communicate with a water inlet connection member provided at the other end of the handle of the toothbrush, said water inlet connection member being connectable, by means of a flexible pipe and of an adaptable elastic joint, to a water tap or faucet.