Antibiofilm activity of three irrigation protocols activated by ultrasonic, diode laser or Er:YAG laser in vitro

Abstract

The use of NaOCl after or in combination with a chelator caused the greatest reduction of E. faecalis. Diode laser and Er:YAG laser activation were superior to ultrasonics in dentinal tubule disinfection.

Efficacy of laser and ultrasonic‐activated irrigation on eradicating a mixed‐species biofilm in human mesial roots

“…The majority of the remaining bacteria may have been located in regions of the root canal system which are impervious to physical or chemical disruption by NaOCl when delivered via a syringe (9,29). A significant difference was not shown between UAI and LAI 0.5 W or between UAI and LAI 0.75 W. These findings are in agreement with the previous studies conducted by Peters Bardsley et al (2011) and Neelakantan Cheng et al (2014) who did not find a significant bacterial reduction between LAI and UAI for 6% NaOCl (10,28). Compared to the UAI and LAI 0.5W groups, SEM qualitative analysis showed that there were co-aggregated bacteria and small areas of biofilm remaining in the LAI 0.75 W group (Fig.…”

“…Compared to the UAI and LAI 0.5W groups, SEM qualitative analysis showed that there were co-aggregated bacteria and small areas of biofilm remaining in the LAI 0.75 W group (Fig. A similar result was observed by Neelakantan et al (2014) who found that UAI and LAI to be equally effective at reducing bacteria number when 3% NaOCl and 17% EDTA were used in a NaOCl-EDTA-NaOCl combination with a total activation time of 4 min and a contact time of 6 min (28). This is a surprising result and may have occurred because LAI (0.75 W) fluid dynamics did not improve the flow of 4% NaOCl into the deeper recesses of the root canal system.…”

“…The results clearly showed bacterial numbers were significantly reduced (<99% reduction) when mechanical instrumentation was combined with 4% NaOCl and 15% EDTAC either with UAI or LAI protocols. The importance of NaOCl in reducing bacterial numbers when combined with LAI, sonic activated irrigation or UAI was demonstrated by Seet et al and Neelakantan et al (20,28). The importance of NaOCl in reducing bacterial numbers when combined with LAI, sonic activated irrigation or UAI was demonstrated by Seet et al and Neelakantan et al (20,28).…”

Short‐term storage stability of NaOCl solutions when combined with Dual Rinse HEDP

“…Furthermore, by virtue of its effect on the smear layer, HEDP can enhance the disinfection efficacy of NaOCl in experimentally infected root canals (Neelakantan et al . ) and dentinal tubules (Morago et al . ).…”

Use of Nickel-Titanium Rotary Instruments Among Dentists in Chennai.

“…The most important reason for not using NiTi instruments seems to be lack of adequate education. [4] [14] Conclusion:-Dentists are familiar with limitations of NiTi instruments and techniques. Moreover, they are increasing efficacy of their practice by using these appliances.…”