1 Department of Orthodontics, University of Puthisastra, Phnom Penh, Cambodia; Department of Orthodontics, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamilnadu, India. Electronic address: avenugopal@puthisastra.edu.kh.
2 Department of Orthodontics, European University College, Dubai Healthcare City, Dubai, United Arab Emirates.
3 Orthodontic Program, Center for Advanced Dental Education, Saint Louis University, St Louis, Mo; Department of Orthodontics, Case Western Reserve University, Cleveland, Ohio; Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Mich.