Impact of Different Irrigant Agitation Methods on Bacterial Elimination from Infected Root Canals

Autor: Roeland De Moor, Carla Zogheib, Dolla Karam Sarkis, Désirée el Hajj, Germain Sfeir, Wajih Hage
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Dentistry Journal, Vol 7, Iss 3, p 64 (2019)
DENTISTRY JOURNAL
Dentistry Journal
Volume 7
Issue 3
ISSN: 2304-6767
Popis: Activation techniques are essential for root canal disinfection but may result in incomplete removal of bacteria. The aim of our study was to assess the antibacterial action of sonically, ultrasonically and laser-activated irrigation and 5.25% sodium hypochlorite (NaOCl) on Enterococcus faecalis in an infected tooth. Forty-four extracted mandibular premolars were mechanically prepared, sterilized, and inoculated with E. faecalis for 1 week. Bacterial counts after inoculation were evaluated in 4 randomly chosen teeth, remaining root canals were divided into 4 groups. Group A: laser-activated irrigation by photon-induced photoacoustic streaming, Group B: the sonic irrigation by EDDY, Group C: ultrasonic irrigation by EndoUltra, and Group D: 5.25% NaOCl. Colony forming unit (CFU) counts were measured and Kolmogorov&ndash
Smirnov, Wilcoxon, Kruskal&ndash
Wallis and Mann&ndash
Whitney tests were used to determine differences. The mean of CFU was found to significantly decrease in group D, 2110 ±
1015.93 (p <
0.001). Changes in measurement levels followed the same trend over time in groups A 27.40 ±
30.15, B 81.3 ±
85.68 and C 44.40 ±
67.12 (p = 0.141). The average CFU after irrigation in all groups was significantly greater than 0. Within the limitations of this study, all activation techniques were superior to NaOCl 5.25% in reducing E. faecalis from the infected tooth model.
Databáze: OpenAIRE