Follow the manufacturer's instructions, especially when using a new product, and learn how to properly light-cure resin restorations.
The 2018 Northern Lights meeting was held in Oslo, Norway in July.
Check out the consensus statements here.
Check out the full article by Strassler, Alkhubaizi and Ganesh in Compendium
With Near and Mid Rapid Scan FT-IR Real Time Monitoring of Reactions for Days is Now Possible