Comparative Evaluation Of The Effect Of Different Chelating Agents On The Push-Out Bond Strength Of A Bioceramic Sealer: An In-Vitro Study

Aim: This study aimed to assess how the push out bond strength of a bioceramic sealer (Meta CeraSeal) is affected by three different chelating agents: 17% EDTA, 7% Maleic acid, and 5% Pentetic acid. Methodology: 60 mandibular premolars were shaped using Pro Taper Gold rotary file upto size F2. The canals were irrigated with 2ml of 5.25% sodium hypochlorite (NaOCl) between instrumentation and then the NaOCl was removed by rinsing with five milliliters of distilled water.. The 60 specimens were divided into 4 groups of 15 each, in a random manner, depending on the final irrigating solution: Group 1 (n=15): 17% EDTA,Group 2 (n=15): 7% Maleic acid,Group 3 (n=15): 5% Pentetic acid and Group 4 (n=15): 0.9% Saline. The canals were obturated with Meta CeraSeal coated gutta percha using single cone technique. Access to cavities were sealed and the specimens were sectioned to obtain three horizontal sections at distances of 12, 6, and 2 mm from the apex (coronal, middle, and apical root sections, respectively). A universal testing machine was used to apply the push-out test. Results: The push out bond strength was significantly higher for 5% Pentetic acid as compared to 17% EDTA and 7% Maleic acid (p<0.05). Also, the apical third exhibited the lowest push out bond strength value in all the groups. Conclusion: Within the limitations of the study, it can be concluded that, in comparison to the other tested groups, 5% pentetic acid has higher potential to facilitate the bonding of the bioceramic sealer Meta CeraSeal to root dentin