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The Effect of Calcium Silicate Based Materials on Tooth Discoloration and Evaluation of Color Change After Bleaching Treatment: A Spectrophotometric Study

Serpil Sagiroglu Akunsi/Mügem Asli Ekici/Bagdagül Helvacıoğlu Kivanç

DOI: 10.11607/prd.6097

Purpose: The aim of this study was to evaluate tooth discoloration after the use of calcium silicatebased materials and to examine the effect of internal bleaching on discoloration. Materials & Methods: The specimens were randomly divided into two experimental groups (n=45) and a control group (n=6). Cavities were filled with ProRoot MTA in Group 1 and Biodentine in Group 2. Color measurements were taken with a spectrophotometer before and after the application of materials at 1 week, 1, 3 and 6 months. After 6 months, Group 1 and Group 2 were divided into three subgroups according to internal bleaching techniques. All color change ratios and lightness differences were calculated by using CIE L*a*b* system. Data were analyzed using repeated-ANOVA and Kruskal Wallis (p=0.05). Results: There were statistically significant differences between Group 1 and Group 2 at all time intervals (p<0.05). Group 1 showed statistically significant more discoloration than Group 2 (p<0.05). There were no significant differences between the bleaching agents (p>0.05). Additionally both Group 1 and Group 2 became lighter than their initial color (p<0.05). Conclusion: Teeth treated with ProRoot MTA exhibited darkening at 1 week and increased over time, whereas those treated with Biodentine maintained lightness for six months. Int J Periodontics Restorative Dent. 10.11607/prd.6097

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