Aim: Mineral trioxide aggregate and calcium silicate cements have common usage in endodontics and restorative dentistry. However, MTA has some disadvantages such as long setting time, discoloration and cost. The treatment can not finish in a single visit because of long setting time. The aim of this study is to determine the discoloration of different materials on the coronal dentine. Material and Methods: In this study, fifty bovine teeth were prepared and filled with Proroot MTA, MM-MTA, Biodentine, MTA+ (Cerkamed) placed and then sealed with a translusent composite. Unfilled samples were determined as a control groub. The specimens were kept at 37 o C in a dark environment. The color assessment was performed a with a spectrophotometer at different intervals (1th day, 1 month, 3 months, 9 months). The statistical analysis was performed by using One way Anova and Post-hoc Tukey tests. Results: In the analysis of the tooth discoloration, the materials (Pro Root MTA, MM-MTA and MTA+ Cerkamed) were showed discoloration by the time. Biodentine showed tooth color stability because of zirconium oxide as a radiopacifier. The discoloration degree is very high between 1th month and 3th month. Conclusions: Different discoloration degrees of materials which are used in vital pulp treatments have been determined in this study. This criteria should also be taken into consideration if a dental vital pulp treatment isplanned in a tooth which may be anesthetically anxious.
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