FIG. 1 is a front, top and side perspective view of a dental control unit showing my new design;
FIG. 2 is a rear elevation thereof;
FIG. 3 is a front elevation thereof;
FIG. 4 is a side elevation thereof;
FIG. 5 is a side elevation of the side opposite that shown in FIG. 4;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a bottom perspective view thereof.
The broken lines shown in the figure drawings are included for purposes of illustration and form no part of the claimed design.