Very little light transmits through tooth structure. This is important because some dentists have been advised, when placing veneers on anterior teeth, to cure from the palatal or lingual aspect.

3M ESPE is now offering the checkMARC Service to Canadian dentists at no cost. Dentists value the checkMARC Service because it helps them to confidently manage the increasingly confusing and often conflicting array of curing light equipment and material protocols.

An examination of 915 curing lights in 422 dental clinics in 18 cities indicated that 30% of curing lights were not capable of delivering even half of the energy dose required by the brand and shade of resin composite used.

ADA has published clinical guidelines for light curing, which provide clinicians with clear direction on how to manage the growing complexities associated with the process of light curing dental restorative materials.