Comparing color stability of 3 different resin composites after immersion in staining media: An in vitro study

The aim of this study was to evaluate colour stability of three different composite resins.Thirty disc-shaped specimens of three different light‑cured resin composites Filtek 3M ESPE, Beautifill Injectable (Shofu) and Beautifill 2 (Shofu) were prepared. For evaluation of colour stability, samples were evaluated for baseline color value using a spectrophotometer. Later, color measurements were taken after 1 week immersion in Green Tea by spectrophotometer and color change values were calculated. Statistical analyses were executed by one-way ANOVA and Scheffe’s post hoc procedure.All materials showed significant color change after 1 week (P < 0.05) of immersion in Green Tea, with the lowest color alteration observed at the 1st day and the highest observed after the 7th day. Among the materials tested, the lowest color alteration was detected in Beautifil 2 and the highest color alteration was detected in Filtek Z250XT.All the materials tested for evaluating colour stability showed apparent colour changes after 1 week.