Evaluation of reinforcement effect of capillary condensation technique in teeth with simulated internal resorption cavity: An in vitro study

Abstract

Aim: To evaluate the reinforcement effect of capillary condensation technique in teeth with simulated internal resorption cavity. Materials and Methods: G*Power software (effect size d = 0.59) was used to calculate the sample size. Thirty-six mandibular premolars with a single canal were decoronated at the cementoenamel junction to standardize 12 mm length of the root. Biomechanical preparation was done with ProTaper Universal rotary up to F4. #08 size round bur was used to prepare an internal resorption cavity of uniform diameter in the middle third of the root. Random sample allocation was done into experimental and control groups: Group I, positive control Group – noninstrumented teeth; Group II, negative control Group – teeth with biomechanical preparation but without obturation; Group III, teeth with a bioceramic sealer (EndoSequence BC Sealer, Brasseler, USA) application with conventional technique and hybrid technique of obturation; and Group IV, capillary condensation technique of bioceramic sealer along with master cone gutta-percha. The samples were subjected to evaluation of fracture resistance using a universal testing machine (Instron-3369). Statistical Analysis: Statistical analysis of the data was done using one-way ANOVA and Tukey’s HSD tests with P < 0.05. Results: The positive control group demonstrated the highest fracture resistance with a mean of 574.44 Newton (N), whereas the negative control group demonstrated fracture resistance with a mean of 162.22 N. The capillary condensation technique group demonstrated fracture resistance with a mean of 202.22 N, followed by the hybrid technique group with a mean of 172.22 N. Conclusion: The results were statistically similar between hybrid technique and capillary condensation technique. However, capillary condensation technique showed higher values compared to hybrid technique.