225 ILCS 25/50.1

A dental office that is closing and will not continue to offer dentistry services must provide notice to its patients at least 30 days prior to the closure. The notice to patients shall include an explanation of how copies of the patient's records may be accessed or obtained by the patient. The notice may be given by publication in a newspaper of general circulation in the area in which the dental office is located or in an electronic format accessible by patients.