Color Stability and Surface Roughness of Resin Based Direct and Indirect Restorative Materials

Authors : Bilge ERSÖZ, Serpil KARAOĞLANOĞLU, Elif Aybala OKTAY, Numan AYDIN

Pages : 1-6

Doi:10.52037/eads.2021.0004

View : 17 | Download : 11

Publication Date : 2021-04-30

Article Type : Research Paper

Abstract :This study investigated discoloration and surface roughness insert ignore into journalissuearticles values(Ra); in resin-based computer aided design insert ignore into journalissuearticles values(CAD);/computer aided manufacturing insert ignore into journalissuearticles values(CAM); blocks and direct and indirect composite resins. Using a Teflon mold, disc shaped specimens insert ignore into journalissuearticles values(8×2 mm2); were fabricated from direct insert ignore into journalissuearticles values(Estelite Asteria and GrandioSO); and indirect insert ignore into journalissuearticles values(Gradia Plus); composite resins, and specimens insert ignore into journalissuearticles values(12×14×2 mm3); were prepared from composite resin CAD/CAM blocks insert ignore into journalissuearticles values(Vita Enamic, Brilliant Crios, and Cerasmart); insert ignore into journalissuearticles values(n=10);. A profilometer was used to determine the Ra values of all 60 polished samples. These specimens were thermocycled between 5 and 55°C for 3,000 cycles, and they were immersed in coffee solution insert ignore into journalissuearticles values(37°C); for 1 and 7 days. A spectrophotometer was used to determine the color change insert ignore into journalissuearticles values(∆E00); with the CIEDE2000 formula after the specimens were polished. ANOVA TUKEY test was performed to analyze the data. The lowest degree of discoloration among the materials tested was found in Vita Enamic insert ignore into journalissuearticles values(<0.05);, whereas the highest degree of discoloration was found in the Gradia Plus indirect composite insert ignore into journalissuearticles values(<0.05);. Direct composite resins have a higher discoloration potential over resin-based CAD/CAM blocks, whereas they are less prone to discoloration than indirect composite resins.
Keywords : Resin based CAD CAM materials, Discoloration, Roughness, Esthetic dentistry