NIOM researchers Head of Laboratory Hilde Kopperud and Senior Scientist Ellen Bruzell participated in a three-day workshop at Dalhousie University in Halifax, Canada, hosted by Prof. Richard Price 24–26 June 2015. The meeting topics dealt with dental polymer composite materials and light curing LEDs. NIOM presented results of the following diverse topics: in vivo investigations of physiological oral tissue changes after combined exposure to dental materials and optical radiation; properties of polymer composites after light curing with lamps of irradiances between 2 and 6 W/cm²; mechanical properties of bulk fill materials; preliminary results from a survey conducted among dentists about light curing and curing lamps.