The ornamental design for a 3 sided fingerbrush for oral hygiene, as shown and described.
FIG. 1 is a perspective view of a 3 sided finger brush for oral hygiene, showing my new design;
FIG. 2 is an enlarged perspective view of the invention;
FIG. 3 is an enlarged front elevational view of the invention;
FIG. 4 is an enlarged rear elevational view of the invention;
FIG. 5 is an enlarged left-side elevational view of the invention, the right-side elevational view being a mirror image thereof;
FIG. 6 is an enlarged top plan view of the invention; and,
FIG. 7 is an enlarged bottom plan view of the invention.
The broken lines showing a hand in FIG. 1 are included for the purpose of illustrating the invention in use, and form no part of the claimed design.
The broken lines showing a series of rounded projections in FIGS. 1–3, 6 and 7 illustrate portions of the brush that form no part of the claimed design.