Fluorescence of Layered Resin Composites

Abstract

Dentin showed a fluorescence peak around 440 to 450 nm. Three of the five resin composites showed fluorescence peaks, and the peak wavelength was 440 to 450 nm. Peak height and peak area varied by the composite. Changes in color (DeltaE*(ab)) caused by the UV component were 1.58 to 2.35, and Deltab* values were from -2.20 to -1.49 in composites that showed fluorescence peaks.