Comparative evaluation of accuracy of shade selected using VITA Classical, VITA 3D Master shade guides, intraoral scanner with clinical spectrophotometer

Abstract

BACKGROUND: Tooth shade selection is a complicated task fundamentally affecting esthetic outcomes of restorative treatments. Since color matching is considered a subjective procedure, accurate shade choice is often the most challenging stage of recreating the natural appearance of teeth. Furthermore, accurate determination of tooth color is imperative for the final outcome of dental restorations. The purpose of this research is to evaluate and compare the accuracy of Shade selection using VITA Classical, VITA 3D Master shade guide, Intraoral scanner with Clinical Spectrophotometer.

METHODOLOGY: Shade of central incisors of 36 participants were obtained by Intraoral scanner, Visual method (VITA CLASSICAL and 3D Master guide) individually and compared to that of the Spectrophotometer. All the reading of shade selection were obtained under similar light conditions.

RESULTS: Results were subjected to Non-Parametric Spearman's Rank Correlation Coefficient Test. 3D master shade guide shows strong co-relation with intraoral scanner and spectrophotometer as compared to Vita classical which shows weak co-relation

CONCLUSION: Accuracy of clinical Spectrophotometer were closer to VITA 3D Master shade guide as compared to intraoral scanner and VITA Classical shade guide.