1. Biofilm Research Laboratories, Levy Center for Oral Health, Department of Orthodontics and Divisions of Pediatric Dentistry & Community Oral Health, School of Dental Medicine, University of Pennsylvania, 240 South 40th Street, Levy Building Room 417, Philadelphia, Pennsylvania 19104, United States
2. Dentsply Sirona, 38 West Clarke
Avenue, Milford, Delaware 19963, United States