Any person licensed to practice dentistry or dental hygiene in this State by the Department as hereinbefore provided, shall at all times display such license or duplicate original thereof in a conspicuous place, in his or her office wherein he or she shall practice such profession, and shall further, whenever requested, exhibit such license to any of the members of the Department or its authorized agent. Upon proof by affidavit, the Department shall provide a duplicate if such person establishes that his or her license is lost or stolen or that he or she practices at multiple locations.
225 ILCS 25/20