US D272561 S
FIG. 1 is a perspective view of an anterior subperiosteal implant embodying the present design;
FIG. 2 is a front elevational view of the anterior subperiosteal implant shown in FIG. 1;
FIG. 3 is an elevational view of the side of the _anterior subperiosteal implant opposite the side shown in FIG. 1;
FIG. 4 is a rear elevational view; and
FIG. 5 is a top plan view.