The ornamental design for a stand for dentalinstrument, as shown and described.
FIG. 1 is a perspective view of a stand for dental instrument showing the claimed design;
FIG. 2 is a top view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a rear view thereof;
FIG. 7 is a front view thereof; and,
FIG. 8 is a perspective reference view of the stand for dental instrument of the present invention showing the claimed design in an environment in which it may be used.
The broken line in FIG. 8 depicts environmental structure and forms no part of the claimed design. All other broken lines depict portions of the stand for dental instrument and form no part of the claimed design.