1. Department of Prosthetic Dentistry and Stomatognathic Physiology, Institute of Dentistry, University of Turku, Turku, Finland.
2. Department of Periodontology, Institute of Dentistry, University of Turku, Turku, Finland.
3. Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Turku, Finland.
4. Wellbeing Services County of Southwest Finland, Turku, Finland.