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Christos Rahiotis

Associate Professor

Phone: (+30) 210-746-1094
Email: craxioti[at]dent.uoa[dot]gr

Mailing Address:
2 Thivon Str, 115 27, Goudi, Athens, Greece

Ελληνική Έκδοση English Version

Education / Qualifications

  • 1996: Bachelor in Dentistry, NKUA, Greece
  • 2002: Master of Science in Dental Biomaterials. NKUA, Greece
  • 2003: Clinical Cerificate in Operative Dentistry. NKUA, Greece
  • 2006: PhD in Oral Biology. NKUA, Greece

Academic and professional positions held

  • 2006-2008: Postdoctoral Fellow (407/80) in Department of Operative Dentistry, NKUA, Greece
  • 2009-2012: Lecturer in Dept. of Oral Biology with specialization in Pathobiology of Hard Tissues, NKUA, Greece.
  • 2012: Move to the Department of Operative Dentistry, NKUA, Greece in 2012.
  • 2014-2019: Assistant Professor of Operative Dentistry, NKUA
  • 2019-today: Associate Professor of Operative Dentistry, NKUA

Academic and professional responsibilities

  • Participation in Clinic of Total Comprehensive Care (clinical training on the subject of Operative Dentistry)
  • Contribution to the seminars of Operative Dentistry
  • Coordination and Clinical practice on the subject of Operative Dentistry in the course “Clinical Exercise of 6th semester”
  • Contribution to lectures and laboratory exercises as long as written notes
  • Co-Coordination and contribution to lectures and written notes (Topics: Dental caries) in the course of “Pathology of dental hard tissues"
  • Co-ordinator of lab exercises and contribution to lab exercises in the course of "Dental Morphology and Introduction to Occlusion”

Post-graduate Education

  • Co-ordinator and teacher of the course Dental Caries
  • Contribution to lectures of course “Molecular Biology”

PhD and Master Thesis Supervision

  • Member of the advisory committee of 2 PhD Theses
  • Member of the examination committee of 2 PhD Theses
  • Supervisor in five MSc Theses
  • Member of the examination committee in 7 MSc Theses

Research Grants and Contracts

  • 2007: Annual sponsorship named T. KOULOURIDIS of Procter & Gamble, with the work "Study of the effects of the released bisphenol-A derivatives from dental resins during development"
  • 2010: Prevelance of cervical dentin hypersensitivity on population of Attika. (Source: Colgate-Palmolive)
  • 2011: Clinical effectiveness of the Colgate ® Sensitive Pro-Relief TM on dentin hypersensitivity in periodontitis patients. (Source: Colgate-Palmolive)
  • 2011: Fluoride agents for caries prevention and management. (Source: Colgate-Palmolive)
  • 2014: Annual sponsorship named T. KOULOURIDIS of Procter & Gamble, with the work «Caries related to restorations. In vitro and in vivo study o diagnosis based on clinical της features and composition of microbial dental plaque.
  • 2015: Clinical efficiency of arginine-fluoride toothpaste on caries. (Source: Colgate-Palmolive)
  • 2018: Annual sponsorship named T. KOULOURIDIS of Procter & Gamble, with the work «Proteomic saliva analysiw in children with Molar-Incisor hypomineralization

Awards and Honours

  • 2003: 1st poster award in 23rd Panhellenic Dental Congress for work "Evaluation of marginal and internal adaptation in Class II combined amalgam-resin composite restorations."
  • 2007: Prize for best poster at the Congress Academy of Operative Dentistry European Section (AODES) in Geneva for work «Characterization of oral films formed in the presence of a CPP-ACP agent: an in situ study»
  • 2009: Prize for the best oral presentation at the Congress of Academy of Operative Dentistry European Section (AODES) in Sevilla for work «Evaluation of diagnostic methods in detection of initial proximal caries»
  • 2010: Prize for the best abstract at congress 2nd meeting of the Hellenic Association of Supportive Care of the Oral Cavity in Cancer for work «Caries treatment strategies in patients with head and neck cancer»


  • Organisation for Caries Research
  • International Association for Dental Research

Research Theses - Books

  • Study of the influence of visible light curing units on setting reaction of one visible light. Master Thesis, 2002
  • In vitro and in situ evaluation of the interaction mechanism of a remineralizing agent (CPP-ACP) on hard dental tissues. PhD Thesis, 2006
  • KAKABOURA A, RAHIOTIS C, VOUGIOUKLAKIS G. Laboratory atlas of tooth morphology and introduction to occlusion excersises Publisher P.C. Paschalides, Athens, 2010
  • Clinical Atlas: KAKABOURA A, VOUGIOUKLAKIS G. Conservative restorations. Clinical atlas. From diagnosis to management. Publisher P.C. Paschalides, Athens, 2010
  • 3 chapters in Book of Operative Dentistry: KAKABOURA A, VOUGIOUKLAKIS G. Basic principles of operative dentistry. Publisher P.C. Paschalides & Brooken Hill, Athens, 2012
  • Rahiotis C, Eliades T, Silikas N, Eliades G. Research on orthododntic polymers. Στο βιβλίο Research methods in orthodontics. A quide to understanding orthodontic research. ELIADES T (ed). Springer 2014
  • Rahiotis C, Schricker S. Bonding with glass ionomer cements and resin-modified glass ionomer cements. In Orthodontic Applications of Biomaterials. A clinical guide. ELIADES T, BRANTLEY W (ed). Woodhead Publishing 2016

Selected publications in scientific journals

  • Mitropoulos P, Rahiotis C, Kakaboura A, Vougiouklakis G. The impact of magnification on occlusal caries diagnosis with implementation of the ICDAS II criteria. Caries Res. 2012;46(1):82-6.
  • Achilleos EE, Rahiotis C, Kakaboura A, Vougiouklakis G. Evaluation of a new fluorescence-based device in the detection of incipient occlusal caries lesions. Lasers Med Sci. 2013;28(1):193-201
  • Rahiotis C, Polychronopoulou A, Tsiklakis K, Kakaboura A. Cervical dentin hypersensitivity: a cross-sectional investigation in Athens, Greece. J Oral Rehabil. 2013;40(12):948-57.
  • Pepelassi E, Rahiotis C, Peponi E, Kakaboura A, Vrotsos I. Effectiveness of an in-office arginine-calcium carbonate paste on dentine hypersensitivity in periodontitis patients: a double-blind, randomized controlled trial. J Clin Periodontol. 2015; 42(1):37-45
  • Rahiotis C, Zinelis S, Eliades G, Eliades T. Setting characteristics of a resin infiltration system for incipient caries treatment. J Dent. 2015;43(6): 715-9
  • Martinez-Mier EA, Tenuta LM, Carey CM, Cury JA, van Loveren C, Ekstrand K, Ganss C, Schulte A and the ORCA Fluoride in Toothpaste Analysis Work Group (Rahiotis et al). Summary of the ORCA-Sponsored Workshop on: Methodology for Determination of Potentially Available Fluoride in Toothpastes. Caries Res 2019:53:119-136
  • Poimenova A, Kitraki E, Kakaboura A, Rahiotis C. Early responses of human pulp to direct capping with resin adhesive systems and calcium hydroxide Dent Mater 2018;34(4):73-82
  • Achilleos EE Rahiotis C, Kavvadia K, Vougiouklakis G. Clinical evaluation of two different prevention programs in adults depending on their caries risk profile. One year results. Accepted for publication in Oper Dent (2018).
  • Ntovas P, Loubrinis N, Maniatakos P, Rahiotis C. Evaluation of dental explorer and visual inspection for the detection of residual caries among Greek dentists. J Conserv Dent 2018;21(3):311-318
  • Ntovas P, Rahiotis C. Caries infiltration of proximal enamel lesions with resins. A clinical guideline. Br Dent J 2019;55:

Areas of scientific interest

My main research activity is to evaluate the clinical classification criteria of caries, the assessment of different methods and systems of caries diagnosis, the treatment of cervical dentin hypersensitivity, the clinical evaluation of the factors determining the caries risk and the protocols of clinical management of caries lesions. Other research activity is the evaluation and characterization of mechanical properties and kinetics of dental polymeric materials. Also, I was involved in the study of the interaction of hard dental tissues with anticaries agents.

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