The ornamental design for a disposabletoothbrush, as shown and described.
FIG. 1 is a perspective view of the disposable tooth brush of this invention.
FIG. 2 is a side elevational view of the disposable tooth brush shown in FIG. 1.
FIG. 3 is a top view of the disposable tooth brush shown in FIG. 1.
FIG. 4 is a bottom view of the disposable tooth brush shown in FIG. 1.
FIG. 5 is a front end view of the disposable tooth brush shown in FIG. 1; and,
FIG. 6 is a rear end view of the disposable tooth brush shown in FIG. 1.
The broken line showing of a dentifrice in FIG. 1 illustrates environmental structure that forms no part of the claimed design. The floss feature in FIGS. 2-4 is shown in an alternate position relative to FIG. 1.