1. Division of Comprehensive Care University of Kentucky College of Dentistry Lexington Kentucky USA
2. Division of Prosthodontics University of Kentucky College of Dentistry Lexington Kentucky USA
3. Operative Dentistry and Fixed Prosthodontics, Department of Restorative Sciences Dental College of Georgia Augusta Georgia USA
4. Director of Graduate Studies University of Kentucky College of Dentistry Lexington Kentucky USA
5. Comprehensive Dentistry Uniformed Services University of the Health Sciences Postgraduate Dental School Bethesda Maryland USA