Influence of the EndoActivator Irrigation System on Dentinal Tubule Penetration of a Novel Tricalcium Silicate-Based Sealer

• Published in: Dentistry journal Vol. 6; no. 3; p. 45
• Main Authors: El Hachem, Roula, Le Brun, Guy, Le Jeune, Bernard, Pellen, Fabrice, Khalil, Issam, Abboud, Marie
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 03.09.2018; MDPI
• Subjects: Antimicrobial agents; Biological activity; Cleaning; confocal laser scanning microscope; Dentin; dentinal tubules penetration; Dentistry; EndoActivator; Endodontics; gap; Hypodermic needles; Incisors; Instrumentation; interfacial adaptation; Irrigation systems; Lavage; Microscopy; Needles; Penetration; Physics; Root canals; Sealing compounds; Teeth; Tricalcium silicate; Tricalcium silicate sealer; Tubules; Lebanon; Beirut Lebanon; France; United States > US; Switzerland; confocal laser scanning microscope; dentinal tubules penetration; EndoActivator; gap; Tricalcium silicate sealer; interfacial adaptation
• ISSN: 2304-6767; 2304-6767
• DOI: 10.3390/dj6030045

This study compared the effects of a conventional endodontic needle with an agitation system on a novel tricalcium silicate-based sealer (NTS) in terms of dentinal tubule penetration and interfacial adaptation to a root canal. Fifty single-rooted, recently-extracted human maxillary central incisors were randomly distributed into two homogeneous groups characterized by two different final cleansing systems: Conventional endodontic needle, or EndoActivator . After instrumentation, all the teeth were filled with the gutta-percha single cone technique in conjunction with the novel tricalcium silicate-based sealer. Teeth were horizontally sectioned at 1 and 5 mm from the apex and were observed under a confocal laser scanning microscope (CLSM) at five magnifications. The maximum, mean, and the circumferential percentage of the sealer penetration inside the tubules were measured. Moreover, the gap width was evaluated using Image J software (National Institutes of Health, Bethesda, MD). EndoActivator did not result in a significantly higher circumferential percentage of sealer penetration than conventional irrigation ( > 0.05). However, the gap width was significantly lower with EndoActivator , compared to conventional needles at both 1 mm ( = 0.035) and 5 mm ( = 0.038). The EndoActivator irrigation system did not significantly improve the NTS penetration, as compared to the conventional endodontic needle irrigation. Activation of the irrigation reduced the gap width significantly.