Abstract: Cover for a toothbrush head having a spherical body simulating a small ball capable of receiving the brush head inside. The spherical body incorporates an orifice or opening of “T” configuration that is slightly larger than the cross section of the brush head with its bristles. The inside of the spherical body incorporates a sleeve, in a diametrical arrangement, whose outer mouth fits the orifice or window of the spherical body, while its rear mouth is closed either by a partition associated with the actual sleeve or by the corresponding wall of the spherical body. The sleeve and spherical body are secured together by adhesive, heat-welding or any other appropriate conventional manner.