Core-shell quantum dots tailor the fluorescence of dental resin composites.

摘要

OBJECTIVES: We characterized the optical properties, such as absorbance and fluorescence, of dental resins containing quantum dots (QD). We also determined the doping level needed to obtain a broad and nearly flat emission spectrum that provides the perception of white color. METHODS: The samples studied were resin composites from Charisma (Heraeus Kulzer) prepared with CdSe/ZnS core-shell QD (0.05-0.77 mass%). RESULTS: The results showed that the fluorescence of dental resin composites can be tailored by using CdSe/ZnS core-shell quantum dots. CONCLUSION: QD core incorporation into dental resins allows the fabrication of restorative materials with fluorescence properties that closely match those of natural human teeth.