The ornamental design for a dentalfixtureoperatingconnector, as shown and described.
FIG. 1 is a front perspective view showing our new design for a dental fixture operating connector;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom view thereof illustrating the dental fixture operating connector.
The portions shown in broken lines are solely for the purpose of illustrating context and environmental structures only and form no part of the claimed design.