Zadeh Azadeh Khazaei, Haghi Sahebeh, Drikvand Mona
Department of Restorative Dentistry, School of Dentistry, Arak University of Medical Sciences, Tehran, Iran.
Department of Operative Dentistry, Dental School, Tehran University of Medical Sciences, Tehran, Iran.
Dent Res J (Isfahan). 2025 Jun 27;22:24. doi: 10.4103/drj.drj_416_24. eCollection 2025.
This study compared the color stability of resin-modified glass ionomer (RMGI) and Cention N bioactive restorative material following exposure to different coloring solutions.
In this 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 ( = 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).
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 ( < 0.05).
Within the limitations of this 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.
本研究比较了树脂改性玻璃离子水门汀（RMGI）和Cention N生物活性修复材料在暴露于不同染色溶液后的颜色稳定性。
在本实验研究中，用Cention N和富士II LC RMGI制作12个样本，并将其浸入土耳其咖啡、雀巢咖啡、可乐中，以及作为对照的蒸馏水中（每组n = 3）。在将样本分别浸入相应溶液1、7和28天后测量其颜色参数，并计算其颜色变化（ΔE）。使用重复测量方差分析、弗里德曼检验和双向方差分析（α = 0.05）对数据进行分析。
在第1天，浸入雀巢咖啡的Cention N样本的ΔE值最高，浸入可乐的Cention N样本的ΔE值最低。在第7天和第28天，浸入雀巢咖啡的RMGI样本的ΔE值最高，浸入可乐的Cention N样本的ΔE值最低。材料类型、染色溶液类型及其对不同时间点样本ΔE的交互作用在统计学上具有显著意义（P < 0.05）。
在本研究的局限性内，结果表明从长期来看，富士II LC RMGI的颜色稳定性低于Cention N。雀巢咖啡使富士II LC的变色最严重，而土耳其咖啡使Cention N样本的变色最严重。
