FIG. 1 is a front perspective view of an opposing dental model base quadrant showing my new design;
FIG. 2 is a rear top perspective view of thereof;
FIG. 3 is a front bottom perspective view thereof;
FIG. 4 is a rear bottom perspective view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a front view thereof;
FiG. 8 is a rear view thereof;
FIG. 9 is a left side view thereof; and,
FIG. 10 is a right side view thereof.
The broken line showing of environmental in the figure drawings if for illustrative purposes only and forms no part of the claimed design.