DOI: 10.4103/endo.endo_67_25 ISSN: 0970-7212

Comparative evaluation of fracture resistance of endodontically treated teeth using three different bioceramic root canal sealers: An in vitro study

Ramamoorty Pratheeba, Sokkalingam Mothilal Venkatesan, Gopal Shankar Narayan, Shekar Shobana, Maria Anisha Sebatni, Venkat Vidya
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ABSTRACT

Aim:

The aim of the study was to evaluate the fracture resistance of root canals filled with three different bioceramic sealers following endodontic treatment.

Methods:

Forty mandibular premolars were sectioned to a length of 13 mm. Canal shaping was performed using ProTaper rotary files, finishing with an F4 size. The samples were randomly divided into three experimental groups ( n = 8) and two control groups ( n = 8) based on obturation and instrumentation methods: Group 1: BioActive RCS with gutta-percha, Group 2: CeraSeal with gutta-percha, Group 3: Cerafill RCS with gutta-percha, Group 4 (Positive Control): Uninstrumented and unfilled, and Group 5 (negative control): Instrumented but unfilled. After 7 days of incubation at 37°C and 100% humidity, the samples were coated with polyvinyl siloxane to simulate the periodontal ligament, then embedded in acrylic blocks. Fracture resistance was assessed using a universal testing machine at a rate of 1 mm/min. Data analysis was carried out using the Kruskal–Wallis test, followed by the Mann–Whitney U -test for pairwise comparisons, with a significance threshold of P ≤ 0.05.

Results:

Significant differences were found between the experimental and control groups ( P < 0.05). CeraSeal exhibited the highest fracture resistance (804.02 N), followed by Cerafill RCS (701.16 N) and BioActive RCS (643.39 N).

Conclusion:

CeraSeal demonstrated the greatest fracture resistance among the bioceramic sealers tested.

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