Comparative Evaluation of Apical Sealing Ability of Gutta Percha Using Different Obturating Techniques: An Ex-Vivo Study under UV-Visible Spectrophotometer

Abstract

Aim: Aim of this study is to evaluate the apical sealing ability of different obturating techniques using warm vertical condensation, cold lateral condensation & single cone technique, using resin-based sealer using dye extraction method under UV visible spectrophotometer.

Material and Methods: Freshly extracted sixty single-rooted teeth were collected & stored in 3% sodium hypochlorite solution for 1 week. The canal orifice was located using DG-16 and the working length was determined by placing a #10 K-file Root canals were then prepared using crown-down technique with endomotor and rotary ProTaper Gold files. The samples were then randomly divided into 3 groups of 20 teeth each. The groups were named: Group A: Warm vertical condensation obturation technique, Group B: Cold lateral condensation technique, Group C: Single cone technique.

Results: Statistical analysis was carried out one way ANOVA test to determine whether there were significant differences among the groups. Post hoc and Student ‘t’ test were performed to know the effect of each variable and to reveal the statistical significance. The confidence level of study was proposed to be 95% hence p-value < 0.05 has been considered significant. Mean comparison of microleakage among Warm Vertical Compaction, Cold Lateral Compaction and Single Cone Technique are compared. The mean leakage scores were as follows; 0.548 ±0.016 in Group A, 0.745± 0.012 in Group B & 0.885 ±0.013 in Group C.

Conclusion: The present study indicated minimal apical leakage in warm vertical condensation technique, followed by cold lateral technique, and most in single cone technique with mean values of 0.548 ± 0.016, 0.075 ±0.012 & 0.0885 ±0.013 respectively.