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VOLUME 14 , ISSUE 9 ( September, 2023 ) > List of Articles

ORIGINAL RESEARCH

Comparative Evaluation of VITA Shade Guide and Various Composite Shades Using Spectrophotometer, Digital Single-lens Reflex, and Cellphone: An In Vitro Study

Aman Verma, Sonali Taneja, Surabhi Ghosh

Keywords : Composite shade matching, Digital shade selection, Smartphone analysis, Spectrophotometric analysis, VITA shade guide

Citation Information : Verma A, Taneja S, Ghosh S. Comparative Evaluation of VITA Shade Guide and Various Composite Shades Using Spectrophotometer, Digital Single-lens Reflex, and Cellphone: An In Vitro Study. World J Dent 2023; 14 (9):803-808.

DOI: 10.5005/jp-journals-10015-2297

License: CC BY-NC 4.0

Published Online: 13-10-2023

Copyright Statement:  Copyright © 2023; The Author(s).


Abstract

Aim: This study aims to evaluate the L*, a*, and b* values of different composite shades and their corresponding VITA shade tabs using digital single-lens reflex (DSLR) and cellphone images and comparing their values with a spectrophotometer. Materials and methods: Three commercially available resin composites of shades A3B, B1B, and C2B were evaluated—Estelite Σ Quick (Tokuyama, Japan), Beautiful II (Shofu, Germany), and Filtek Z350 XT (3M ESPE) along with their corresponding VITA (Vita Zahnfabrik) shade tabs. Six samples of each shade from each manufacturer were made using molds of shade tabs from VITA shade guide, using polyvinyl siloxane impression material. These molds were then filled with composite (n = 6), polymerized, and stored in a lightproof environment for 24 hours. For spectrophotometric analysis, the Commission Internationale de l'Eclairage (CIE) XYZ data was obtained and converted to CIE 1976 (L*, a*, b*) (CIELAB). For DSLR and cellphone, the images were captured and analyzed using graphic software. After the data collection, ΔE* for all three parameters, that is, spectrophotometer, DSLR, and cellphone, was evaluated for each shade of all the manufacturers and compared with the VITA shade tabs. Result: When ΔE values for DSLR and cellphone were compared with spectrophotometer, ΔE for spectrophotometer vs cellphone was significantly more. When the L*, a*, and b* values of different shades of 3M captured using DSLR and cellphone were compared, for shade A3, L* value was not statistically significant (p < 0.05). Similarly, when different shades of Shofu were compared, for shade A3, there was no statistical difference in L* and a* value (p < 0.05), and for shade C2, there was a nonsignificant difference in b* values (p < 0.05). Conclusion: This study showed that the use of cellphones for composite shade matching could be a reliable and easy method. Clinical significance: The study signifies the utility of cellphones during composite shade matching to make the procedure more convenient and untroublesome.

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