PURPOSE: To simultaneously polish upper teeth and lower teeth by forming the part of the toothbrush abutting against the teeth to U shape.

CONSTITUTION: A W toothbrush is an improved form in which two toothbrushes are formed into one. The U-shaped toothbrush enables upward and downward movements to be simultaneously performed, upper and lower teeth to be polished and teeth to be polished while gums are massaged at the same time. The object of the toothbrush is to simultaneously perform two things and to shorten time in case of doing something in a hurry.