Tooth-whitening device

FIG. 1 is a perspective view of a tooth-whitening device, embodying our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a perspective view of a second embodiment of a tooth-whitening device, embodying our new design containing a transparent surface or contrasting color;

FIG. 9 is a front view thereof;

FIG. 10 is a back view thereof;

FIG. 11 is a left-side view thereof;

FIG. 12 is a right-side view thereof;

FIG. 13 is a bottom view thereof;

FIG. 14 is a top view thereof;

FIG. 15 is a perspective view of a third embodiment of a tooth-whitening device, embodying our new design containing a reflective line or contrasting color;

FIG. 16 is a front view thereof;

FIG. 17 is a back view thereof;

FIG. 18 is a left-side view thereof;

FIG. 19 is a right-side view thereof;

FIG. 20 is a bottom view thereof; and,

FIG. 21 is a top view thereof.