AIM

The aim of this study is to compare the effect of different root canal sealers on the fracture resistance of endodontically treated teeth using AH Plus, GuttaFlow 2, MTA-Fillapex, and TotalFill® BC™ sealers.

MATERIALS AND METHODS

Sixty single-rooted mandibular premolar teeth were used in the study. After the decoronation of the crowns of the teeth, we got a 13 mm root length. All samples instrumented using ProTaper Next system reaching file size ×4 as the final master apical file. Gutta-percha (GP) with single cone as obturation technique was carried out to all experimental teeth. Then, the teeth were divided into five groups ( = 12) based on the type of sealer to be used. Group I: AH Plus sealer + GP, Group II: GuttaFlow 2 sealer + GP, Group III: MTA-Fillapex sealer + GP, Group IV: TotalFill BC sealer + GP, and Group V: control (instrumented but unobturated teeth). Embedding all teeth in acrylic resin blocks was carried out and fracture force was measured using a universal testing machine (Instron Corp., Canton, MA, USA) by using metal-like spreader tip on 0.5 mm/m speed. Then, the data were statistically evaluated using one-way analysis of variance (ANOVA) and test (Tukey's test).

RESULTS

Group IV showed higher resistance to fracture than other groups significantly. There was a nonsignificant difference in fracture force between Group I, Group II, and Group III. Group V showed the least fracture resistance than other groups.

CONCLUSION

Based on this study, TotalFill bioceramic-based sealer was more effective when compared with other sealers and the unobturated group showed the lowest mean fracture resistance.

CLINICAL SIGNIFICANCE

The use of bioceramic sealer with BC cones enhanced the fracture resistance of endodontically treated teeth.