A promising approach utilising photothermal energy to disinfect the root canal system: An in vitro investigation

Author:

Auerbach Daniela1,Alaugaily Ibrahim12,Davis Scott1,Azim Adham A.1

Affiliation:

1. Department of Endodontics Arthur A. Dugoni School of Dentistry, University of the Pacific San Francisco California USA

2. Department of Restorative Dental Sciences, College of Dentistry King Saud University Riyadh Saudi Arabia

Abstract

AbstractThis study aimed to assess root canal disinfection through various irrigation protocols, including a novel photothermal system called ‘LEAP’. Mandibular premolars were infected with Enterococcus faecalis and divided into five groups for different treatments: Group 1: standard needle irrigation; Group 2: passive ultrasonic irrigation; Group 3: GentleWave; Group 4: LEAP; and Group 5: Group 1 + Group 4. Microbial counts were measured before (S1) and after disinfection (S2) using colony‐forming units (CFU) and confocal laser scanning microscopy (CLSM). Results revealed a significant reduction in bacterial counts for all groups (p < 0.05). While the percentage of dead bacteria near the canal wall (0–50 μm) did not differ significantly, at 50–150 μm, LEAP and SNI + LEAP exhibited significantly higher bacterial reduction than other groups (p < 0.05). The findings indicate that LEAP is comparable to existing irrigation devices in the main root canal and notably superior in tubular disinfection.

Funder

University of the Pacific

Publisher

Wiley

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