A comparative digital shade analysis on the color stability of two different acrylic shade tabs using various disinfectant methods – An In Vitro Study

Abstract

Aim: This study aim to compare and evaluate the color stability of different acrylic shade tabs using four disinfectant methods.

Settings and Design: An in-vitro, prospective

Methods and Material: In this in-vitro comparative study, Acryrock and Premadent specimens were subjected to four disinfectants i.e., immersion in 70% Isopropyl alcohol, 5.25% Sodium hypochlorite, Distilled water, and Autoclaving, and were subjected to spectrophotometric test at baseline (before immersion), 1, 7, 14 and 21 days interval. The color difference was evaluated using a digital spectrophotometer.

Statistical analysis used: Kolmogorov smirnov test was used to determine normality. ANOVA was used as data is normally distributed and Friedman was used as same solution was used at different time intervals.

Results: A significant difference was noted in the degree of shade tab colour change with Acryrock A1, A2 and Premadent shade 23, 24 in 70% Isopropyl alcohol compared to baseline.

Conclusions: This study concluded that immersion in 70% Isopropyl alcohol showed significantly higher values on color change of different acrylic shade tabs within the clinically acceptable range.