DOI: 10.11607/prd.6097Pages 1-14, Language: EnglishSağiroğlu Aksun, Serpil / Ekici, Mügem Aslı / Helvacioğlu Kivanç, Bağdagül
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 2 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.
