Light-emitting Diode Beam Profile and Spectral Output Influence on the Degree of Conversion of Bulk Fill Composites

Clinical Relevance The nonuniform emission of light-emitting diodes (LEDs) may provide a similar degree of conversion (DC) of a bulk fill composite with camphorquinone (CQ). However, the bulk fill composite with CQ and alternative photoinitiators may have a lower DC in depth as a result of lower wavelength absorption of alternative photoinitiators.