WATER TOOTHBRUSH

摘要

PURPOSE: A water toothbrush is provided to clearly remove impurities attached to the surface of teeth without unnaturally brushing the teeth and smoothly massage the teeth ridge by injecting water of a certain water pressure. CONSTITUTION: The water toothbrush is constructed to receive and inject water containing a certain additive and having a certain water pressure. For this, the water toothbrush is formed with an input port(3) at the distal end thereof, to be connected to a hose or sprayer, and an injection port(1) at the head portion thereof. A water passage defined in the toothbrush has a cucullate form that its diameter becomes wider toward the input port, while becomes narrower toward the injection port. Around the injection port smooth brush(2) is attached.