THE PENETRATION ABILITY OF CALCIUM SILICATE ROOT CANAL SEALERS INTO DENTINAL TUBULES COMPARED WITH RESIN-BASED SEALER: A CONFOCAL LASER SCANNING MICROSCOPY STUDY

Dr. Sahadev Chickmagaravalli Krishnegowda, Dr. Bharath Makonahalli Jaganath, Dr. Sandeep Rudranaik, Dr. Santhosh P. Sagar and *Dr. Meljo Joseph N. J.

ABSTRACT

Aim: The objective of this study was to compare the penetration ability of calcium silicate root canal sealers and conventional resin-based sealer using confocal laser scanning microscopy (CLSM). Materials and Methods: 30 extracted single rooted premolars were selected. Root canals were prepared using ProTaper Gold rotary instruments upto apical size F3. The canals were irrigated with 2ml of 5.25% NaOCl, 2ml of 17% EDTA and 5ml of saline. The specimens were divided into 3 groups of 10 samples each. Group 1 was obturated with Meta AdSeal RCS, group 2 with BioRoot RCS, group 3 with MTA Fillapex respectively using single cone technique. The cross- sectional cutting was carried out at 3mm and 5mm from the apex. The penetration abilities of all samples were evaluated using Confocal laser scanning microscopy. Data were subjected to statistical analysis using Kruskal–Wallis analysis and Mann–Whitney U post hoc tests. Results: The MTA FillApex group showed higher sealer penetration at the apical third compared with BioRoot RCS and Meta Adseal group, whereas BioRoot RCS showed higher sealer penetration in the middle third, similar to MTA FillApex. Conclusion: Within the limitations of the study, calcium silicate-based sealers showed better sealing ability when compared with the conventional resin-based sealer.

Keywords: Sealing ability, BioRoot RCS, MetaAdseal RCS, MTA FillApex, Confocal Microscopy.