1. Department of Cariology, Institute of Dentistry, University of Turku, Lemminkäisenkatu 2, SF-20520, Turku, Finland
2. Department of Oral Biology, Institute of Dentistry, University of Turku, Lemminkäisenkatu 2, SF-20520, Turku, Finland
3. Department of Oral Biology, Institute of Dentistry, University of Clermont-Ferrand, 63000, Clermont-Ferrand, France