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The ornamental design for an orthodontic face mask, as shown and described. |
FIG. 1 is a perspective view of an orthodontic face mask showing my new design, with the strap shown in broken lines for illustrative purposes only and forming no part of the claimed design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a front elevational view thereof; and
FIG. 4 is a left side elevational view thereof, the right side being a mirror image.
FIG. 5 is a top plan view thereof; and
FIG. 6 is a bottom plan view thereof.
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