The ornamental design for a dentalimpressiontray, as shown and described.
FIG. 1 is a perspective view of a dental impression tray, showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is an enlarged cross-sectional view thereof, taken along line 7-7 of FIG. 5.
In the drawings, the solid lines represent portions of the dental impression tray that form the claimed design. The right side view is omitted, because it is a mirror image of the left side view.
The broken line shown in the drawings is included for the purpose of illustrating environmental structure and forms no part of the claimed design.