Abstract
Objective: Proper apical seal plays an important role in the success of root canal treatment. The most common cause of failure of root canal therapy is known as the lack of adequate apical seal. The aim of this in vitro study was to compare the apical microleakage of MTA Fillapex, , and Endofill sealers using dye penetration method. Material and Methods: In this in vitro study, 72 single-rooted extracted human teeth were selected. The teeth were randomly divided into three experimental groups of 20 and two positive and negative control groups of 6. The canals were prepared by step-back technique and then filled with gutta-percha and one of the sealers mentioned. In the positive control group, the canals were filled with gutta-percha without sealer, and in the negative control group, the canals were prepared but not filled. The teeth were immersed in 2% methylene blue dye for 72 hours. The teeth were then cut longitudinally and the level of dye penetration was measured under a stereomicroscope. Data were analyzed by SPSS ver. 19 software, ANOVA and Bonferroni post-hoc tests. Results: The mean level of dye penetration in the Endofill test group was significantly higher than that in the and MTA Fillapex test groups. While, the observed difference between and MTA Fillapex groups was not statistically significant (p<0.05). Conclusion: The results of this study showed that and MTA Fillapex sealers did not show any significant difference in apical seal properties. However, their sealing strength was significantly greater than Endofill sealer.KeywordsAH26 sealer; Endofill; MTA Fillapex; Microleakag
Highlights
The root canal treatment involves cleaning and shaping the canal and filling its threedimensional space [1]
The highest categorical frequency in the test groups of AH26 and MTA Fillapex was in the range of 0-3 mm, and in the Endofill group was in the range of 9-12 mm (Table I)
ANOVA statistical test showed that there is a significant difference between the three test groups in terms of dye penetration (Table II)
Summary
The root canal treatment involves cleaning and shaping the canal and filling its threedimensional space [1]. An ideal sealer should be compatible with tissue, have antimicrobial properties, be non-toxic and radiopaque, and should fully fill the root canal system and be dimensionally stable and have a proper adherent to the wall of the canal [5]. Eugenol Zinc Oxide Sealers have long been used successfully. Zinc oxide eugenol sealers, such as Endofill, have long been used successfully. If these sealers expand into periradicular tissue, they will absorb. These materials have a slow setting time, shrinkage during setting and solubility and can change the color of the tooth structure. An advantage of these sealers is their antimicrobial activity [8]
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