Bactericidal effect of Nd:YAG laser irradiation in endodontics

Carlos Eduardo Aun; Alexandre Fonseca Barberini; Selma Christina Cury Camargo; Luciana Silva Kfouri; Maria Regina Lorenzetti Simionato

doi:10.1117/12.348354

19 May 1999 Bactericidal effect of Nd:YAG laser irradiation in endodontics

Carlos Eduardo Aun, Alexandre Fonseca Barberini, Selma Christina Cury Camargo, Luciana Silva Kfouri, Maria Regina Lorenzetti Simionato

Author Affiliations +

Proceedings Volume 3593, Lasers in Dentistry V; (1999) https://doi.org/10.1117/12.348354
Event: BiOS '99 International Biomedical Optics Symposium, 1999, San Jose, CA, United States

Abstract

The success of endodontic therapy is based on the elimination of bacterial colonization from the endodontic system and periapical tissues. Recent studies have been showing the bactericidal effect of laser in root canal treatment. The propose of the study is to evaluate the effect of Nd:YAG laser irradiation in contaminated root canal treatment. The propose of the study is to evaluate the effect of Nd:YAG laser irradiation in contaminated root canals from upper central incisor. For the experiment 12 teeth were selected, respect at the apical third, sterilized, and 10 μm Streptococcus sanguis liquid culture were inoculated in the root canals. The laser test groups were irradiated with Nd:YAG laser at standard setting of 15Hz, 100mj and 1,5 W for 10, 20 and 30 seconds each in slow helicoidal movements from the apex to the top using a 300 micrometers fiber. After the procedure the specimens were placed in Tryptic Soy Agar, the number of colony forming units was evaluated. The experiment showed a significant reduction on viability of Streptococcus sanguis at the respective time of 20 and 30 seconds.

Citation Download Citation

Carlos Eduardo Aun, Alexandre Fonseca Barberini, Selma Christina Cury Camargo, Luciana Silva Kfouri, and Maria Regina Lorenzetti Simionato "Bactericidal effect of Nd:YAG laser irradiation in endodontics", Proc. SPIE 3593, Lasers in Dentistry V, (19 May 1999); https://doi.org/10.1117/12.348354

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