A novel model to predict tooth bleaching efficacy using autofluorescence of the tooth

•Conventional model for tooth bleaching prediction have used only tooth color.•A decrease in the fluorescence of teeth after bleaching was detected in QLF images.•Autofluorescence of tooth may present new viewpoint in tooth bleaching prediction.•Natural color−fluorescence combination model was helpful in bleaching prediction.•Future in vivo studies including fluorescence imaging data are needed.