Abstract: A toothbrush with a toothpaste feed system that includes a toothpaste cartridge feed handle, a hollow brush head, a resilient hinge openable neck structure connected between the toothpaste cartridge feed handle and the hollow brush head and providing a neck toothpaste passageway between a toothpaste feed end of a toothpaste cartridge cavity within toothpaste cartridge feed handle and a brush head toothpaste passageway formed within hollow brush head, and an accordion fold toothpaste filled cartridge with a rupturable perforated foil end that is sized to fit into the toothpaste cartridge cavity with the rupturable perforated foil end positioned within toothpaste feed end of toothpaste cartridge cavity. The back of the hollow brush head is provided with a flip open back cap that is in connection with the brush head toothpaste passageway and which is moveable into an open position to allow for cleaning of the brush head toothpaste passageway between uses.