Comparison of the sealing ability of the CC sealer and Endoseal MTA sealer by the dye penetration method: A lab-based experimental study

Background and Aim : In addition to gutta-percha, different bioceramic materials, such as cold ceramics and MTA, are also used as root-filling materials. Owing to the good sealing properties of bioceramics, in this study, we compared the sealing ability of the CC sealer and Endoseal MTA sealer by the dye penetration method. Materials and Methods: In this laboratory study, 32 human single-root teeth were used. After canal preparation, the teeth were randomly divided into two equal groups of 13 teeth according to the root canal fillings, which were filled with CC Sealer and Endoseal MTA Sealer via the lateral condensation method. After that, the teeth were stored at 100% humidity and a temperature of 37°C for 10 days. The samples were then stored in normal saline for one month. All the teeth were subsequently dried, and the dental surfaces, with the exception of the apical foramen, were covered with two layers of nail polish. All the samples were immersed in a 2% methylene blue solution for 72 hours. After the teeth were cut longitudinally, the pieces were examined via 20x magnification microscopy. Results: According to the results of the Mann‒Whitney U test, although the average amount of dye penetration in the CC sealer group, with a value of 1/40 ± 0/64 mm, was less than the average amount of dye penetration in the Endoseal MTA group, with a value of 2/12 ± 1/74 mm, this difference was not statistically significant (P value = 0.418). Conclusion: Considering the results of the present study and the limitations of laboratory studies, CC sealer and Endoseal MTA sealer seem to have similar sealing abilities. However, the distribution of dye penetration in the Endoseal MTA group was greater than that in the cc sealer group. This can mean that the results are more uniform when the canals are filled with a CC sealer. Additionally, during the study, CC Sealer presented a longer setting time, which allows it to work better with.