Laser Activated Irrigation with SWEEPS Modality Reduces Concentration of Sodium Hypochlorite in Root Canal Irrigation

17 Pages Posted: 1 Mar 2022

See all articles by Lishan Lei

Lishan Lei

Fujian Medical University

Fang Wang

Fujian Medical University

Yanhuang Wang

Fujian Medical University

Yijun Li

Fujian Medical University

Xiaojing Huang

Fujian Medical University - Fujian Key Laboratory of Oral Diseases

Abstract

Introductions: The effect of sodium hypochlorite (NaOCl) was positively correlated with concentration and negatively correlated with biocompatibility. The purpose of this in vitro study was to compare the effects of different concentrations of NaOCl combined with shock wave enhanced emission photoacoustic streaming (SWEEPS) root canal irrigation on the removal of Enterococcus faecalis (E.faecalis)  in infected bovine root canals.

Materials and Methods: Forty bovine root canals infected with E.faecalis  were randomly divided into five groups. The root canals were irrigated by normal saline (NS) and different concentrations of NaOCl (0.5%, 1.0%, 2.0%, and 5.25%) in combination with SWEEPS. Then, the remaining live microbes from all specimens before and after root canal irrigation were collected and recovered via plate counting of the colony-forming unit (CFU). The CFU data were statistically analyzed by the Kruskal-Wallis H test.

Results: After root canal irrigation, the viable count in each group was significantly reduced (P < 0.05). The bacterial reduction in NS+SWEEPS was significantly different from that in other groups (P < 0.05), and there was no significant difference among the other groups (P > 0.05).

Conclusions: This study showed that SWEEPS used for root canal irrigation can enhance the effect of low-concentration NaOCl while ensuring the antimicrobial effect.

Keywords: Root canal irrigation; Enterococcus faecalis; Shock wave enhanced emission photoacoustic streaming; Sodium hypochlorite

Suggested Citation

Lei, Lishan and Wang, Fang and Wang, Yanhuang and Li, Yijun and Huang, Xiaojing, Laser Activated Irrigation with SWEEPS Modality Reduces Concentration of Sodium Hypochlorite in Root Canal Irrigation. Available at SSRN: https://ssrn.com/abstract=4047158 or http://dx.doi.org/10.2139/ssrn.4047158

Lishan Lei

Fujian Medical University ( email )

Fuzhou
China

Fang Wang

Fujian Medical University ( email )

Fuzhou
China

Yanhuang Wang

Fujian Medical University ( email )

Fuzhou
China

Yijun Li

Fujian Medical University ( email )

Fuzhou
China

Xiaojing Huang (Contact Author)

Fujian Medical University - Fujian Key Laboratory of Oral Diseases ( email )

China

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