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Volume 20 , Issue 4
July/August 2007

Pages 414416

Evaluation of Visual and Spectrophotometric Shade Analyses: A Clinical Comparison of 3,758 Teeth

Foteini V. Derdilopoulou / Catharina Zantner, Dr Med Dent / Konrad Neumann, Dr Rer Nat / Andrej M. Kielbassa, Prof Dr Med Dent

PMID: 17695875

This study aimed to evaluate the performance of visual and spectrophotometric tooth shade analysis. Two operators independently selected the best match of 3,758 anterior teeth of 106 patients at 3 different dates, using the Chromascop-Complete shade guide. Additionally, tooth color was analyzed 3 consecutive times using a reflectance spectrophotometer. Spectrophotometry showed high agreement values (89.6%); both examiners agreed in 49.7% of the measurements. Visual assessment resulted in significantly darker ratings than spectrophotometry (P < .0005). However, a positive association was observed for both procedures (P = .548). Spectrophotometric shade determination seems to be significantly more reproducible than the visual procedure. Int J Prosthodont 2007;20:414416.

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