Original scientific paper

Antibacterial Effect of Er:YAG Laser in the Root Canal

Silvana Jukić
Darija Vidučić
Ivana Miletić
Želimir Božić
Smiljana Kalenić
Ivica Anić

Abstract

The aim of this study was to evaluate the antibacterial effect of Er:YAG laser in the root canal using bacteria of Enterococcus and Staphylococcus species.
Eleven single-rooted teeth were instrumented, sterilized and ten of them inoculated with bacterial suspension of concentration 106 CFU/ml in brain heart broth. Nine samples were irradiated with Er:YAG laser (220 mJ/40 Hz/10 s) in two cycles with a pause of 15 s for cooling. One sample with bacterial suspension without irradiation was a positive control, and one sterile sample a negative control. After irradiation the samples were placed in vials with broth and the number of CFU/ml was determined by bacterial analysis after one and two weeks. Er:YAG laser did not completely sterilize any canal, but in three cases elimination of Staphylococcus aureus occurred. This indicates the possible better antibacterial effects of erbium laser in the root canal if appropriate energy delivery system could be applied.

Keywords

Er:YAG laser; Staphylococcus aureus; Enterococcus faecalis; antibacterial effect

Hrčak ID:

11155

URI

https://hrcak.srce.hr/11155

Publication date:

15.6.2001.

Article data in other languages: croatian

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