ǂan ǂin vitro study
Agron Bytyqi (Author), Aliu Xhevdet (Author), Merita Barani (Author), David Štubljar (Author), Tomislav Jukić (Author), Andrej Starc (Author), Sokol Krasniqi (Author)

Abstract

Background: Periapical lesions are primarily caused by infections in the root canals. The objective of this study was to assess the antibacterial effectiveness of diode laser during root canal treatment in artificial models of infected periapical lesions. Material and methods: One hundred twenty-two extracted premolar single-rooted teeth were inserted into methyl methacrylate artificial models of periapical lesions, and bacterial solutions of Enterococcus faecalis (ATCC 29212) and Streptococcus mitis (ATCC 49456) were then applied to the models. The respective diameters of lesions in the artificial models represented 3 different subgroups based on lesion size. The laser protocol used for endodontic disinfection had a power output of 1.5 W and a wavelength of 810 nm. The impact on cell viability was evaluated by flow cytometry. Results: Disinfection with laser did not differ between microorganisms (P=0.137), and laser irradiation with a longer duration had better disinfecting action for both microorganisms (P<0.001). Compared with larger lesions, smaller lesions had a higher percentage of dead cells for both microorganisms (P<0.001). The percentage of dead cells in the treatment groups was significantly higher than in the control group (P<0.001). Conclusions: Laser treatment had a poor, almost negligible effect on elimination of bacterial cells in large periapical lesions. Application of a laser might serve as an adjuvant method to standard irrigation with sodium hypochlorite.

Keywords

Enterococcus faecalis;lasers;periapical diseases;streptococcus mitis;root canal therapy;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL ZF - University College of Health Studies
UDC: 616.31:614.48
COBISS: 71706115 Link will open in a new window
ISSN: 2325-4416
Views: 348
Downloads: 38
Average score: 0 (0 votes)
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Other data

Secondary keywords: Enterococcus Faecalis;laserji;periapikalne bolezni;streptococcus mitis;koreninsko zdravljenje;
Pages: str. e932492-1 - e932492-7
Issue: ǂVol. ǂ27
Chronology: Jul. 2021
ID: 13184873