Education / Qualifications

• 1981: DDS Dental School, National and Kapodistrian University of Athens, Greece
• 1983‐1985: Clinical and theoretical training in Oral Surgery (staff member), in the Oral Surgery Dept, John Radcliffe Hospital, University of Oxford, UK.
• September 1985: Master of Science degree in Medicine, Medical School, University of Oxford, UK.
• 1991‐1995: Following evaluation and recognition of the 2 years Hospital training in UK, by the Greek Ministry of Health, fulfilment of the remaining requirements for the newly recognized specialty of OMFS. One year general Surgery (Tzaneion General Hospital of Piraeus) and two years Oral and Maxillofacial Surgery (University Dept of OMFS, Evangelismos General Hospital, Athens).
• 1995: State examinations and graduation with the title of Oral and Maxillofacial Surgeon and inclusion in the specialty registry of the Ministry of Health.
• 1996‐ 1998: Postgraduate taught course (two‐years) in Oral Biology/Pathology, Dental Faculty, National and Kapodistrian University of Athens.
• 1998: Master of Science degree in Dentistry, (Oral Biology/Pathology), National and Kapodistrian University of Athens
• 2000‐ 2004: Postgraduate course (4 years) for PhD. Clinical attachment in the Dept of Oral and Maxillofacial Surgery, Research affiliation with the Depts of Biomaterials and Histopathology, Dental Faculty, University of Athens
• 2004: PhD, Dental Faculty, University of Athens.

Continuous Education:

• Participation in all Congresses of the Hellenic Association of Oral and Maxillofacial Surgery and of the European Association for Cranio‐Maxillofacial Surgery, since 1986.
• Postgraduate intensive CE courses of particular interest on: Traumatology, Osteosynthesis, Implantology, Oncology, Orthographic surgery, Cranio‐Maxillofacial anomalies, Paediatric surgery, Cardiopulmonary resuscitation, Bone Augmentation procedures etc.
• Advanced clinical training: Attendance of the activities of the Craniofacial Unit at the Oxford University Hospitals NHS Trust, UK, from 17.07.2017 to 01.09.2017, under an Honorary Clinical Contract

Academic and professional positions held

• 2023 - present: Associate Professor in Oral and Maxillofacial Surgery (OMFS), Dental Faculty, National and Kapodistrian University of Athens.
• 2014 – 2022: Assistant Professor in Oral and Maxillofacial Surgery (OMFS), Dental Faculty, National and Kapodistrian University of Athens.
• 2018 (January): assigned as director of the University Dept. of OMFS, at “P. and A. Kyriakou” Children’s Hospital, Athens, having both clinical and teaching responsibilities
• 2008– 2014: Lecturer in Oral and Maxillofacial Surgery, Dental Faculty, National and Kapodistrian University of Athens. Staff surgeon, University Dept. of OMFS, at “P. and A. Kyriakou” Children’s Hospital, Athens  
• 2006‐ 2008: Teaching Clinical Fellow, Dept of Oral and Maxillofacial Surgery, Dental Faculty, National and Kapodistrian University of Athens.
• 2001– 2007: Staff Member, University Dept of OMFS, ‘P. and A. Kyriakou’ Children’s Hospital, Athens
• 1983‐1985: Staff member and Registrar (Hon) in the Oral Surgery Dept, John Radcliffe Hospital, University of Oxford, UK.

 Academic and professional responsibilities

• Active member of the European Association for Cranio‐Maxillofacial Surgery, the Hellenic Association of Oral and Maxillofacial Surgery (HAOMS), the Hellenic Society of Biomaterials and the Hellenic Stomatological Society
• Assistant Editor since 2005, Associate Editor since 2007 and Editor-in-Chief (2012- 2016) of the 'Hellenic Archives of Oral and Maxillofacial Surgery’ official publication of the Hellenic Association for Oral and Maxillofacial Surgery
• Member of the Editorial Board (since 2013) and Reviewer (since 2008) of the Journal of Cranio‐Maxillofacial Surgery, official publication of the European Association for Oral and Maxillofacial Surgery
• Member, Secretary General or Coordinator of the Organizing Committee in several Annual Congresses of the Hellenic Association of Oral and Maxillofacial Surgery (1999, 2000, 2002, 2006, 2008, 2010)
• Member of the Organizing Committees of the 16^th Congress of the International Association for Oral and Maxillofacial Surgery (IAOMS), in Athens, 2003 and of the Strasbourg Osteosynthesis Research Group (SORG)  Seminar, in Athens, 2005.
• Member of the Scientific Committee of the 23rd Annual Congress of the HAOMS, Thessaloniki, November 2009.
• Member of the quadruple Scientific Committee of the 2nd Meeting of the HITAOMS (Hellenic, Israeli and Turkish Association of Oral and Maxillofacial Surgery), 1‐3 June, 2012, Kos Island, Greece.
• Member of the Scientific Committee of the 13th Peloponnesian Congress, Sparta, in June 2012.
• Member of the Group of Specialists of the “Center for the treatment of congenital deformities” at the ‘Agia Sofia’ Children’s Hospital in Athens following decision of the Central Council for Health of the Ministry of Health
• Member of the Committee for the evaluation of candidates for postgraduate training in dentoalveolar surgery (Dental School of Athens)

 Memberships

• Active member of the European Association for Cranio‐Maxillofacial Surgery
• Active member of the Hellenic Association of Oral and Maxillofacial Surgery (HAOMS),
• Active member of the Hellenic Society of Biomaterials
• Active member of the Hellenic Stomatological Society

Research Theses - Books

Selected publications in scientific journals

• Ewing’s sarcoma of the maxillofacial region in Greek children: Report of 6 cases and literature review, Iatrou Ι, N. Theologie-Lygidakis, O. Schoinohoriti, F. Tzerbos, A. Mylonas. J Cranio Maxillofac Surg 46: 213-221, 2018
• Rhabdomyosarcoma of the maxillofacial region in children and adolescents: report of 9 cases and literature review. Iatrou I., Theologie-Lygidakis N., Schoinohoriti O., Tzerbos F., Vessala A.M. J Cranio Maxillofac Surg 45; (6): 831-838, 2017
• Evaluation of dentoalveolar trauma in Greek children and adolescents - a modified classification system and surgical treatment strategies for its management. Theologie-Lygidakis N., Schoinohoriti OK., Leventis M., Iatrou I.J Craniofac Surg, June 28(4): e383- e387, 2017
• Nonsurgical management of condylar fractures in children: A 15-year clinical retrospective study. Theologie-Lygidakis N., Chatzidimitriou K., Tzerbos F., Gouzioti A., Iatrou I. J Cranio Maxillofac Surg 44, 85-93, 2016
• Management of intraosseous vascular malformations of the jaws in children and adolescents: report of 6 cases and literature review. Theologie-Lygidakis N., Schoinohoriti O., Tzermpos F., Christopoulos P., Iatrou I. J Oral Maxillofac Res. 6(2): e5, 2015
• Evaluation of a treatment protocol for unerupted maxillary central incisors: retrospective clinical study of 46 children. Lygidakis N.N., Chatzidimitriou K., Theologie-Lygidakis N., Lygidakis N.A. Eur Arch Paediatr Dent: 16 (2): 153–164, 2015
• Internal fixation of mandibular angle fractures using one miniplate in Greek children: a 5-year retrospective study. Iatrou I., Theologie-Lygidakis N., Tzerbos F., Kamperos G. J Cranio Maxillofac Surg 43; 53-56, 2015
• Development of surgical techniques of secondary osteoplasty in cleft patients following 12 years experience. Theologie-Lygidakis N., Chatzidimitriou K., Tzerbos F., Kolomvos N., Iatrou I. J Cranio Maxillofac Surg 42; 839- 845, 2014
• Surgical management of head and neck vascular anomalies in children: a retrospective analysis of 42 patients. Theologie‐Lygidakis N, Schoinohoriti O, Tzerbos F, Iatrou I. Oral Surg Oral Med Oral Pathol Oral Radiol, 117: e22-e31, 2014
• Treatment of central giant cell granulomas of the jaws in children: conservative or radical surgical approach? Theologie‐Lygidakis N, Telona P, Michail‐Strantzia C, Iatrou IA. J Cranio Maxillofac Surg 38(8): 639‐44, 2011
• Surgical management of primary chronic osteomyelitis of the jaws in children: a prospective analysis of 5 cases and review of the literature. Theologie‐Lygidakis N, Schoinohoriti O, Iatrou I. J Oral Maxillofacial Surgery 15: 41‐50, 2011

  Areas of scientific interest

• Pediatric Oral and Maxillofacial Surgery (the whole spectrum)
• Traumatology, Clefts and Syndromes

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