Intraradicular Smear Removal Efficacy of Triphala as a Final Rinse Solution in Curved Canals: A Scanning Electron Microscope Study.

AIM

This study aimed to compare smear layer removal ability of different solutions of Triphala (TA) when used in specific irrigant protocols in curved canals.

MATERIALS AND METHODS

Seventy-four mandibular first molars with 25-35 degrees of curvature of mesial roots were selected and standardized, and canals were prepared. As the initial rinse solution (8 mL), 5% sodium hypochlorite was used. Samples were divided into control (Group I-normal saline, Group II-17% ethylenediaminetetraacetic acid) and experimental (Group III, IV, V, VI, VII, VIII, and IX) groups based on the type of final rinse solution (5 mL) used, that is, TA-premixed (P), TA-(P)-sonic, TA-(P)-ultrasonic, 3% TA solution, 5% TA solution, 10% TA solution, and 10% citric acid. Samples were dehydrated, split buccolingually, splutter coated, and examined in field emission scanning electron microscope.

RESULTS

Among the experimental groups, Group V presented the least amounts of smear and debris in all thirds of the root canal with mean values of 1.6 ± 0.63 and 1.6 ± 0.62, respectively, and on comparison with Group II the results were comparable, and no significant difference was found statistically ( > 0.05). Group V presented with the highest amount of erosion with loss of peritubular and intertubular dentin at all levels with mean values of 1.60 ± 0.51.

CONCLUSION

The use of TA as a final rinse solution during biomechanical preparation seems promising.