1. Department of Orthodontics, Faculty of Dentistry, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
2. Hamdan Bin Mohammed College of Dental Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates
3. Practice Limited to Orthodontics, Athens, Greece
4. Department of Orthodontics, Faculty of Medicine and Pharmacy, CHIR – Unit Dentistry – ORHE, Vrije University, Brussels, Belgium
5. Department of Preventive Dentistry, Periodontology and Implant Biology, Faculty of Dentistry, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
6. School of Mathematics, Aristotle University of Thessaloniki, Thessaloniki, Greece