1. Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, 1011 N. University, Rm. 2309, Ann Arbor, MI 48109-1078, USA
2. School of Dentistry, Federal University of Alfenas, Brazil
3. Department of Morphological Sciences, School of Dentistry, Federal University of Santa Catarina, Brazil
4. Department of Biomedical Sciences, University of the Pacific School of Dentistry, San Francisco, CA, USA
5. Department of Biomedical Engineering, University of Michigan College of Engineering, Ann Arbor, MI, USA
6. Department of Otolaryngology, University of Michigan School of Medicine, Ann Arbor, MI, USA