1. Doctor, Dental clinic "Payl dent", Yerevan, Armenia
2. Lectuar, Department of Therapeutic stomatology Yerevan State Medical University after M. Heratsi, Armenia
3. Lectuar, Department of Oral and Maxillofacial Surgery, State Medical University after M. Heratsi, Armenia
4. Lectuar, Department of Pediatric Stomatology and Orthodontics
5. Professor, Department of Therapeutic stomatology, Yerevan State Medical University after M. Heratsi, Armenia