Impact of Blinding Shade Guides on the Precision of Colour Selection and Hue Preference in Dental Practice.

Authors

Larissa Fernandes Vieira da Silva, Alencar Rodrigues Rosa, Clara Lemos Leal Barata de Mattos, Márcia Luciana Carregosa Santana, Tauan Rosa Santana, Paula Fernanda Damasceno Silva, André Luis Faria-E-Silva

Published in

Journal (Canadian Dental Association). Volume 91. Pages p5.

Abstract

This study evaluated the impact of blinding shade guide tabs on the accuracy of colour selection and the preference for shades in the A hue category.
Disc-shaped specimens were created in 8 shades: 4 in the A hue (A1, A2, A3, A4) and 4 in different hues (B1, B2, C2, D3). Using both blinded and unblinded guides, 15 dental students and 15 experienced dentists evaluated the specimens' shades. Colour accuracy was assessed using the overall colour difference (ΔE00) and individual colour coordinates (CIELCH system) between the selected shade tab and the actual specimen. The percentage of selections favouring the A hue was also calculated.
Blinding the shade guide tabs did not significantly impact the accuracy of colour selection. However, unblinded evaluations resulted in a higher percentage of selections favouring the A hue (44%) compared with blinded evaluations (34%). No significant difference was found between the evaluations of dental students and experienced dentists.
Blinding shade guide tabs did not affect the precision of colour selection but reduced the tendency to choose shades in the A hue category.

PMID:
40554708
Bibliographic data and abstract were imported from PubMed on 25 Jun 2025.

Stats

1-terrible, 9-excellent. How would you rate this publication? Sign in in to submit your rating.

Post a comment

You need to be signed in to post comments. You can sign in here.

Comments

There are no comments yet.