To efficiently and favorably brush teeth to a cervical area 5 and an occlusal surface recessed groove 6.

The front face of an end part 12 of a handle of this toothbrush is formed into a projecting curved face 13 swelling frontward into a U shape, the projecting curved face 13 is filled with brush bristles 1 spreading in the direction of approximately 180°, and the bristle tips are cut into a triangular prism with a ridge line 2 so as to favorably brush parts such as a neck part 5 and the occlusal surface recessed groove 6 which are hard for a regular toothbrush to clean sufficiently, with the ridge line of the brush bristles 1.

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