Color Stability of Self-Adhering Composite Resins in Different Solutions; [Trwalosc Barwy Samoadhezyjnych Zywic Kompozytowych W Roznych Roztworach] Publisher Pubmed



Valizadeh S^{1, 2} ; Asiaie Z² ; Kiomarsi N² ; Kharazifard MJ³
Source: Dental and Medical Problems Published:2020

Abstract

Background. The success of composite resin restorations depends to a great extent on their color stability. However, discoloration is still a problem in composite resin restorations. Objectives. The aim of the study was to evaluate the effect of different staining solutions on the color stability of composite resins. Material and methods. A total of 96 composite disks, 2 mm in height and 8 mm in diameter, were fabricated of 3 commercially available composite resins. The samples were divided into 4 groups of 8 and were immersed in 4 staining solutions: coffee, tea, soda, and artificial saliva. The color parameters of the samples were measured and recorded before as well as 2, 4 and 8 weeks after immersion by spectrophotometry, using the CIELAB color space. A color change (ΔE) ≤3.3 was considered the acceptable threshold for visual perception. The results were analyzed using the one-way analysis of variance (ANOVA) and Tukey’s post hoc test (p < 0.05). Results. All the composite resins in the study showed discoloration in all the staining solutions. The ΔE of Vertise™ Flow was the highest in the tea solution. The lowest ΔE occurred in the Filtek™ Z250 composite in artificial saliva. Conclusions. This in vitro study showed that the color stability of tooth-colored restorations can be influenced by dietary habits. © 2020 by Wroclaw Medical University.