FIG. 1 is a front elevation view of a toothbrush of my new design;

FIG. 2 is a left side elevation view thereof, the right side being a mirror image thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is front, left side perspective view thereof, as seen from the bottom end thereof; and

FIG. 7 is a front elevation view of an alternate embodiment of my new toothbrush design;

FIG. 8 is a left side elevation view thereof, the right side being a mirror image thereof;

FIG. 9 is a back elevation view thereof;

FIG. 10 is a top view thereof;

FIG. 11 is a bottom view thereof; and,

FIG. 12 is front, left side perspective view thereof, as seen from the bottom thereof.

In FIGS. 7 through 12, the bristles of the toothbrush are shown in broken lines for illustrative purposes only and form no part of the claimed design.