The ornamental design for a toothbrushhead, as shown and described.
FIG. 1 is a perspective view of a first embodiment of a portion of a toothbrush head, showing our new ornamental design, wherein tufts are formed by pluralities of bristles;
FIG. 2 is a front view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a side view thereof, the opposite side view being a mirror image thereof; and,
FIG. 5 is a top view thereof.
The features shown in broken lines are for environmental purposes only and form no part of the claimed design.
Pluralities of individual bristles shown, for convenience, only partially in each of the tufts continue throughout and fill respective tufts in accordance with the contours outlined by the endless straight / curved lines.