European Journal of Prosthodontics and Restorative Dentistry

Shade Determination Using Camouflaged Visual Shade Guides and an Electronic Spectrophotometer

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Cover Date

March 2014

Print ISSN

0965-7452

Vol

22

Issue

1

Abstract

Abstract - The aim of the present study was to compare a camouflaged visual shade guide to a spectrophotometer designed for restorative dentistry. Two operators performed analyses of 66 subjects. One central upper incisor was measured four times by each operator; twice with a camouflaged visual shade guide and twice with a spectrophotometer. Both methods had acceptable repeatability rates, but the electronic shade determination showed higher repeatability. In general, the electronically determined shades were darker than the visually determined shades. The use of a camouflaged visual shade guide seems to be an adequate method to reduce operator bias.

KEY WORDS: Electronic color measuring devise, light sources, tooth shade, repeatability.