1. Boston University, Department of Endodontics, Henry M. Goldman School of Dental Medicine, Boston, Massachusetts.
2. Arizona Center for Laser Dentistry, Private Practice, Scottsdale, Arizona.
3. Arizona School of Dentistry and Oral Health, Mesa, Arizona.
4. Boston University, Department of Pediatric Dentistry, Henry M. Goldman School of Dental Medicine, Boston, Massachusetts.
5. Department of Pediatric Dentistry, Rutgers School of Dental Medicine, Rutgers, The State University of New Jersey, Newark, New Jersey.
6. Boston University, Department of Biomaterials and Prosthodontics, Henry M. Goldman School of Dental Medicine, Boston, Massachusetts.
7. University of Tennessee Health Science Center, Department of Bioscience Research, College of Dentistry, Memphis, Tennessee.