<p>A circular tubular toothbrush having bristles implanted with an appropriate implant density distribution in the direction of the axis of a handle. The structure allows a user to comfortably use the toothbrush and provides the toothbrush with excellent massage performance in addition to excellent brushing performance. A circular tubular brush head (20) provided to the front end of a handle (10) has a hybrid structure in which hard round brush elements (20A) and soft round brush elements (20B) are arranged in the axial direction in a mixed state. The hard round brush elements (20A) each consist of a large number of nylon threads used for the bristles of toothbrushes and are each formed as a thin radial blade in which the nylon threads project radially outward. The soft round brush elements (20B) are each formed as an integral part consisting of an SEBS resin used for toothpicks etc. and each have a petaline shape in which tongue-shaped planar projections project radially outward.</p>