The ornamental design for a dental plateextractor, as shown and described.
FIG. 1 is a left side, front, top perspective view of a dental plate
extractor embodying my design;
FIG. 2 is a rear elevational view of the design as seen in FIG. 1, the
front elevational view being a mirror image thereof;
FIG. 3 is a bottom plan view of the design as shown in FIG. 1;
FIG. 4 is a top plan view of the design as shown in FIG. 1 reduced size
with a handle seen in dotted line form, the handle not forming part of the
design; and,
FIG. 5 is a left side elevational view of the design as seen in FIG. 4 with
the handle shown in dotted line fashion and not forming part of the
design, the right side elevational view being a mirror image thereof.