Lasers in Endodontics

Huh,  Sun-Yoon; Rhim,  Eun-Mi; Kim,  Sun-Young; Park,  Sang-Hyuk

doi:2011.49.11.660

J Korean Dent Assoc > Volume 49(11); 2011 > Article

The Journal of The Korean Dental Association 2011;49(11):660-669.
DOI: https://doi.org/10.22974/jkda.2011.49.11.001 Published online November 30, 2011.

임상가를 위한 특집1 - 근관치료에서의 레이저의 활용

허성윤¹, 임은미², 김선영³, 박상혁⁴

^¹신구대학교 치위생과
^²가톨릭대학교 성바오로병원 치과보존과
^³강동경희대병원 치과대학병원
^⁴강동경희대병원 치과대학병원

Lasers in Endodontics

Sun-Yoon Huh¹, Eun-Mi Rhim², Sun-Young Kim³, Sang-Hyuk Park⁴

¹Department of Dental Hygiene, Shingu College
²Department of Conservative Dentistry, St. Paul's Hospital
³The Catholic University of Korea, Kyung Hee University Hospital at Gangdong
⁴The Catholic University of Korea, Kyung Hee University Hospital at Gangdong

Abstract

Er: YAG laser irradiation utilizing the newly developed RCLase side-firing spiral tip was used for the cleansing of root canals following their bio-mechanical preparation with ProTaper Ni-Ti files. The distal and palatal roots of 20 freshly extracted molar teeth were instrumented to size F3 with ProTaper files. In the experimental group (10 teeth) the pulp chamber and the root canals were filled with EDTA 17% and the root canals were lased for 30 s using the Er: YAG laser irradiation at 600 mJ per pulse and a frequency of 12 Hz. In the control group (10 teeth) the root canals were not lased. Scanning electron microscope analysis showed clean wall surfaces of the lased root canals with open dentinal tubules, free of smear layer and debris. In the scanning electron microscope photographs of the walls of the non-lased root canals a considerable amount of debris could be detected. It appears that an efficient cleansing of the root canal system can be achieved by using the Er: YAG laser irradiation with the RCLase Side-firing Spiral Tip following bio-mechanical preparation of the root canal with Ni-Ti Taper files.

Key Words: Er:YAG laser;RCLase side-firing spiral tip;ProTaper;