Use of a reflectance spectrophotometer in evaluating shade change resulting from tooth-whitening products.
Historically, shade change assessment associated with vital bleaching treatment regimens has been visually evaluated through the use of shade guide tabs. Innovations in the industry of dentistry have brought forth new technologies capable of measuring such changes via the capture and analysis of reflected wavelengths of light.


CONCLUSIONS
This article introduces the use of a 45/0 reflectance spectrophotometer and identifies the advantages and limitations associated with such a technology in the assessment of shade change owing to vital bleaching.
Chu
Stephen J
SJ
Advanced and International Programs in Esthetic Dentistry, Department of Implant Dentistry, Division of Prosthodontic and Restorative Sciences, New York University College of Dentistry, New York, NY 10021, USA. schudmd@aol.com
D002138:Calibration; D003116:Color; D003118:Color Perception; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008027:Light; D055095:Optics and Photonics / Q000295:instrumentation; D013053:Spectrophotometry / Q000295:instrumentation*; D014070:Tooth / Q000033:anatomy & histology*; D014073:Tooth Bleaching