# Effect of various beverages on colour stability with CAD-CAM and light cure provisional restoration - An in vitro study

## TL;DR

This study compares how different materials used in dental restorations change color when exposed to common beverages.

## Contribution

The study evaluates the color stability of CAD-CAM and light-cure provisional materials in various beverages.

## Key findings

- CAD-CAM PMMA showed better color stability than composite resins in tea and turmeric.
- Color changes were measured at 15, 30, and 90 days using a spectrophotometer.
- Beverages like tea and turmeric had a significant impact on color stability.

## Abstract

The color stability of two provisional restorative materials, Computer-Aided Design-Computer-Aided Manufacturing (CAD-CAM) and Poly
Methyl Methacrylate (PMMA) and light-cure composite resins, when exposed to various beverages is od interest. Samples were immersed in
tea, coffee, turmeric solution, soft drink and artificial saliva, with color changes measured using a spectrophotometer at 15, 30 and 90
days. The results revealed that CAD-CAM PMMA demonstrated superior color stability, particularly in tea and turmeric, compared to
composite material. Thus, the importance of material selection based on aesthetic longevity for provisional restorations is shown.