PURPOSE: To let a dental froth easily reach a molar with a short dental froth by preventing the slack or deviation during use of the froth.

CONSTITUTION: This intertooth cleaning tool is equipped with a longitudinal long base substance 8, a hold 11 made at the base of the base substance 8, a roughly semicircular support 14 the top of the center of which is coupled with the front of the base substance 8 and both whose ends are positioned under, an annular support groove 15 made at the supports 15 at both ends of the support 14, holders 17 projected from the outer surfaces of both ends of the supports 14, annular retaining grooves 18 made at both holders 17, and a dental froth wound in order on one retaining groove 18, one supporting groove 15, the other supporting groove 15, and the other retaining groove 18.