MEDICAL AND DENTAL LABORATORIES (SIC 807) Establishments primarily engaged in providing professional analytic or diagnostic services to the medical profession or to the patient as prescribed by a physician. Laboratories engaged in the manufacture of medical or pharmaceutical products are classified in Manufacturing. Laboratories engaged in commercial medical research are classified in Industry 8731, and those engaged in noncommercial medical research are classified in Industry 8733. Establishments primarily engaged in making dentures, artificial teeth, and orthodontic appliances to order for the dental profession. The manufacture of teeth other than to order is classified in Manufacturing. Establishments providing dental x- ray laboratory services are classified in Industry 8071.