The ornamental design for a rack for dental implant containers, as shown and described.
FIG. 1 is a front view of the rack for dental implant containers illustrating my new design. The rear view is identical to the front view shown.
FIG. 2 is a top view thereof.
FIG. 3 is a bottom cross-sectional view thereof; and,
FIG. 4 is a left side cross-sectional view thereof. The right side cross-sectional view is a mirror image of Figure 4. The broken line showing of the vial is for environmental purposes only.
The broken lines depict portions of the rack for dental implant containers that form no part of the claimed design.