P.O. Box 9739 Naperville, IL 60567-9739
Ph: 630-355-7912 or 800-942-IDLA
Heritage Dental Laboratory, Inc. Bill McCormick, CDT
605 E. Algonquin Road Suite 180 Arlington Heights, IL 60005-4300 Voice: 847-690-1810 Fax: 847-690-1820