Original Research Article
Year: 2021 | Month: March | Volume: 11 | Issue: 3 | Pages: 44-50
Color Stability of Heat-Cured Versus Self-Cured Provisional Restorative Materials
Manar Abu-Nawarega, Ahmed Zidanb
a King Abdulaziz University, Faculty of Dentistry, Jeddah, Saudi Arabia and Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt.
b Faculty of Dentistry, Umm Al-Qura University, Mekkah, Saudi Arabia and Faculty of Dentistry, October University for Modern Sciences and Arts (MSA), Cairo, Egypt.
Corresponding Author: Ahmed Zidan
ABSTRACT
Objective: The aim of this study was to compare the color stability of two different types of provisional restorative materials.
Materials and Methods: Two types of commercially available provisional restorative materials, one was self-cured resin composite utilizing the direct technique and the other was heat-processed acrylic resin utilizing the indirect technique. Discs prepared from the two tested materials were immersed in distilled water for six months. Color change “∆E” was detected after one month and six months of storage to evaluate the color stability of the two tested materials using Easyshade spectrophotometer.
Results: For both tested materials, there was a significant difference in the color change between the two storage periods. However, there was no significant difference between the two tested materials at each storage period. Both tested materials showed imperceptible color change.
Conclusions: The method of polymerization as well as the compositional pattern of the tested provisional restorative materials plays a principal role in the improvement of the color stability of the investigated provisional materials.
Key words: Provisional Restoration, Color Stability, Spectrophotometer.