Insurers and dental service plan corporations in this State which provide group insurance or prepaid health care that includes dental care only upon the condition that the insured or the person entitled to make a claim under the plan obtain services only from a list of dentists or groups of dentists approved by the insurer or dental service plan corporation shall advise the employer, group or organization of the requirements of Section 1 during the course of marketing or renewal of such health care policies.
215 ILCS 115/3