APPARATUS FOR CONCENTRATING ULTRAVIOLET RADIATION, FOR CURING POLYMERIZABLE COMPOSITIONS AND METHOD FOR HARDENING FILLING COMPOSITIONS IN DENTAL CAVITIES

摘要

Method for curing polymerizable compositions employing ultraviolet radiation exposure. The concentrated ultraviolet radiation may be employed to cure certain polymerizable resinous compositions which can be initiated by exposure to ultraviolet radiation. The method is particularly useful for curing dental cavity filling compositions quickly and with nearly insignificant polymerization exotherm.