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


CONCLUSIONS
QD core incorporation into dental resins allows the fabrication of restorative materials with fluorescence properties that closely match those of natural human teeth.
Universidade Camilo Castelo Branco - UNICASTELO, Rodovia Presidente Dutra, Km 138, 12247-004 São José dos Campos, SP, Brazil.
Leandro P
LP
Alves
Viviane
V
Pilla
Dírian O A
DO
Murgo
Egberto
E
Munin
D000042:Absorption; D019187:Cadmium Compounds / Q000737:chemistry; D003116:Color; D003188:Composite Resins / Q000737:chemistry*; D003764:Dental Materials / Q000737:chemistry*; D005453:Fluorescence; D006801:Humans; D054020:Lasers, Gas; D008422:Materials Testing; D055668:Photochemical Processes; D019904:Polymethyl Methacrylate / Q000737:chemistry; D045663:Quantum Dots; D018036:Selenium Compounds / Q000737:chemistry; D012997:Solvents / Q000737:chemistry; D013053:Spectrophotometry / Q000379:methods; D013440:Sulfides / Q000737:chemistry; D017967:Zinc Compounds / Q000737:chemistry
D019187:Cadmium Compounds; C084111:Charisma composite resin; D003188:Composite Resins; D003764:Dental Materials; D018036:Selenium Compounds; D012997:Solvents; D013440:Sulfides; D017967:Zinc Compounds; D019904:Polymethyl Methacrylate; C058667:cadmium selenide; C031238:zinc sulfide