1. Division of Restorative and Prosthetic Dentistry, The Ohio State University College of Dentistry, Columbus, OH, USA.
2. Division of Orthodontics, The Ohio State University College of Dentistry, Columbus, OH, USA.
3. The Ohio State University College of Dentistry, Columbus, OH, USA.
4. Division of Orthodontics and Division of Restorative and Prosthetic Dentistry, The Ohio State University College of Dentistry, Columbus, OH, USA.