Christos Rahiotis received his Bachelor’s degree in Dentistry from NKUA, Greece, in 1996, his Master’s degree in Dental Biomaterials from NKUA, Greece, in 2002, and his Ph.D. in Oral Biology from NKUA, Greece, in 2006. He obtained a Clinical Certificate in Operative Dentistry from NKUA, Greece, in 2003. Currently, he is an Associate Professor of Operative Dentistry at NKUA. He is also a member of the Organisation for Caries Research and the International Association for Dental Research. His 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. Another research activity is the evaluation and characterization of mechanical properties and kinetics of dental polymeric materials. Also, he was involved in the study of the interaction of hard dental tissues with anticaries agents.