In Vitro Assessment of Apical Leakage of Bioceramic Endodontic Sealer with Two Obturation Techniques

Hussein A.A. Elmasmari,Abdul R. Mohammed Saleh,Arwa S. Salem

doi:10.2174/1874210601812011162

Abstract

Purpose: The aim of this study was to evaluate the apical sealing ability of Total Fill BC sealer and AH Plus sealer with single cone and continuous wave condensation obturation techniques using dye extraction leakage method. Materials and Methods: Eighty-four extracted human single-rooted teeth with round canals were decoronated at 12 mm length and instrumented using crown down technique with the iRace rotary file system to apical file size 40 with 0.04 taper. The roots were randomly divided into four experimental groups (n=20). Group (A1) contained roots which were obturated with Total Fill BC sealer with a single cone. Group (A2) contained roots which were obturated using Total Fill BC sealer with continuous wave condensation. Group (B1) contained roots which were obturated using epoxy resin sealer (AH Plus) with a single cone. Group (B2) contained roots which were obturated using AH Plus sealer with continuous wave condensation. Apical microleakage was assessed with dye extraction method where the absorbance of leaked 1% methylene blue dye was measured using a spectrophotometer. The absorbance values were converted into concentrations, and the data was analyzed using One way ANOVA test. Results: The mean dye concentration values were 0.012, 0.016, 0.011 and 0.015 for Group A1, Group A2, Group B1 and Group B2, respectively. One-way ANOVA indicated no significant difference in dye leakage between the investigated groups (F = 0.938). Conclusion: With the limitation of the study, it was concluded that Total Fill BC was equivalent to AH Plus in apical sealing ability when using single cone or continuous wave condensation. The single cone can provide a similar apical seal of canal filling as can be achieved by using continuous wave condensation methods, in the round canal.

Highlights

The ultimate goal of root canal system obturation is to provide a hermetic seal to prevent the leakage of fluid and antigenic agents into or from the peri-radicular tissue [1]
The result of this study showed there was no significant difference found between the four groups using the One way analysis of variance (ANOVA) test (F = 0.938) (Table 1)
The bioceramic endodontic sealer consists of calcium silicate and calcium phosphate groups

Summary

Introduction

The ultimate goal of root canal system obturation is to provide a hermetic seal to prevent the leakage of fluid and antigenic agents into or from the peri-radicular tissue [1]. The essential components of a root filling are: a solid core material and a sealer. The widely used core material is gutta-percha, which occupies the bulk of the canal space while the root canal sealer fills the interface between the core material and dentine wall [2]. Some studies showed that the resin-based sealer provided a better seal than other sealers [5 - 8]. Bioceramic based sealers have been introduced in endodontics. They are compatible, antibacterial and bind to dentinal tubules, which improve the sealing ability and prevent the microleakage [9]. Total Fill BC sealer is a new calcium silicate based sealer that has not much investigated in terms of its capability to serve as the apical seal

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Discussion

Conclusion