In vitro comparison of color stability of resin‑modified glass ionomer and Cention N bioactive restorative material

Abstract

Background: This study compared the color stability of resin‑modified glass ionomer (RMGI)
and Cention N bioactive restorative material following exposure to different coloring solutions.
Materials and Methods: In this in vitro experimental study, 12 specimens were fabricated from
Cention N and Fuji II LC RMGI and immersed in Turkish coffee, Nescafe, cola, and distilled water
as control (n = 3). The color parameters of the specimens were measured after 1, 7, and 28 days
of immersion in the respective solutions, and their color change (ΔE) was calculated. Data were
analyzed using repeated measures ANOVA Friedman test and two‑way ANOVA (alpha = 0.05).
Results: On day 1, the highest and lowest ΔE values were noted in Cention N specimens immersed
in Nescafe and Cention N specimens immersed in cola, respectively. On days 7 and 28, the highest
and lowest ΔE values were found in RMGI specimens immersed in Nescafe and Cention N
specimens immersed in cola, respectively. The effects of the type of material and type of coloring
solution and their interaction effect on ΔE of specimens at different time points were statistically
significant (P < 0.05).
Conclusion: Within the limitations of this in vitro study, the results showed that Fuji II LC RMGI
had lower color stability than Cention N in the long term. Nescafe caused the greatest discoloration
in Fuji II LC, while Turkish coffee caused the greatest discoloration in Cention N specimens.
Key Words: Bioactive, Cention N, glass ionomer, restorative material

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 Sahebeh Haghi: Pubmed,Google Scholar