Effective root canal disinfection is a fundamental component of successful root canal treatment

Session

Dental Science

Description

The complex anatomy of the root canal system makes it impossible to completely remove microorganisms from the root canal even when using conventional contemporary methods of mechanical treatment of the canal. In this study we tested the photodynamic disinfection of root canal infected with Enterococcus faecalis (ATCC 29212) at different time intervals in comparison to sodium hypochlorite (NaOCl) irrigation and passive ultrasonic irrigation (PUI).

Methods: Seventy eight extracted single-rooted teeth were collected, sterilized, and incubated with Enterococcus faecalis (ATCC 29212). The group was divided into 6 groups depending on the treatment mode; HELBO®Endo Blue photosensitizer dye application followed by HELBO laser irradiation, with the output power 100 mW and emission of 660 nm, for a 1, 3 and 5 minutes, irrigation with 2.5% NaOCl, 10 second PUI with 2.5% NaOCl and control group. Flow cytometry and scanning electron microscopic (SEM) analysis were used to determine the effectiveness of the different disinfecting methods. Results: The ANOVA test showed a significant statistical difference between disinfecting methods (p

Conclusions: PUI + NaOCl 2.5% is the most effective method for disinfection of infected root canals with E. faecalis, compared to other applied disinfection methods. SEM analysis only confirmed the results. Photodynamic therapy lasting 5 minutes has been more effective in destroying cells of Enterococcus faecalis, therefore longer times of photodynamic therapy were recommended.

Keywords:

Photodynamic therapy, Enterococcus faecalisroot, canal disinfection

Proceedings Editor

Edmond Hajrizi

ISBN

978-9951-550-19-2

Location

Pristina, Kosovo

Start Date

27-10-2019 10:00 AM

End Date

27-10-2019 12:00 PM

DOI

10.33107/ubt-ic.2019.173

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Oct 27th, 10:00 AM Oct 27th, 12:00 PM

Effective root canal disinfection is a fundamental component of successful root canal treatment

Pristina, Kosovo

The complex anatomy of the root canal system makes it impossible to completely remove microorganisms from the root canal even when using conventional contemporary methods of mechanical treatment of the canal. In this study we tested the photodynamic disinfection of root canal infected with Enterococcus faecalis (ATCC 29212) at different time intervals in comparison to sodium hypochlorite (NaOCl) irrigation and passive ultrasonic irrigation (PUI).

Methods: Seventy eight extracted single-rooted teeth were collected, sterilized, and incubated with Enterococcus faecalis (ATCC 29212). The group was divided into 6 groups depending on the treatment mode; HELBO®Endo Blue photosensitizer dye application followed by HELBO laser irradiation, with the output power 100 mW and emission of 660 nm, for a 1, 3 and 5 minutes, irrigation with 2.5% NaOCl, 10 second PUI with 2.5% NaOCl and control group. Flow cytometry and scanning electron microscopic (SEM) analysis were used to determine the effectiveness of the different disinfecting methods. Results: The ANOVA test showed a significant statistical difference between disinfecting methods (p

Conclusions: PUI + NaOCl 2.5% is the most effective method for disinfection of infected root canals with E. faecalis, compared to other applied disinfection methods. SEM analysis only confirmed the results. Photodynamic therapy lasting 5 minutes has been more effective in destroying cells of Enterococcus faecalis, therefore longer times of photodynamic therapy were recommended.