1. Division of Orthodontics, Department of Oral Health Science, College of Dentistry, University of Kentucky, Lexington, Ken.
2. Biomaterials Graduate Program, Department of Oral Diagnostic Sciences, School of Dental Medicine, State University of New York at Buffalo, NY.
3. Department of Periodontics and Endodontics, School of Dental Medicine, State University of New York at Buffalo, NY.
4. Department of Oral and Maxillofacial Surgery, School of Dental Medicine, State University of New York at Buffalo, NY.