Incidence of adverse effects of dental materials.

Acute and long-standing adverse effects from dental materials used in the treatment of 13,325 patients in 15,820 appointments were recorded by 137 dentists. Twenty-four suspected side effects were reported by the patients and 22 by the clinicians; 7 were classified as "probable" or "possible" acute reactions and 15 as long-standing effects, 13 being "verified" and 2 "probable". In another survey, 31 dentists representing a total of 387 years of practice recollected 113 patients with side effects from dental materials.