Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
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THE EFFECTS OF EDTA AND PULSED ND:YAG LASER ON APICAL LEAKAGE OF CANAL OBTURATION

EDTA와 Nd:YAG laser가 근관충전 후 치근단 미세누출에 미치는 영향

  • Kwon, Jin-Soo (Department of Conservative dentistry, College of Dentistry, Pusan National University) ;
  • Lee, Hee-Joo (Department of Conservative dentistry, College of Dentistry, Pusan National University) ;
  • Hur, Bock (Department of Conservative dentistry, College of Dentistry, Pusan National University)
  • 권진수 (부산대학교 치과대학 보존학교실) ;
  • 이희주 (부산대학교 치과대학 보존학교실) ;
  • 허복 (부산대학교 치과대학 보존학교실)
  • Published : 2003.01.01
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Abstract

The purpose of this study was to evaluate the effects of EDTA and pulsed Nd :YAG laser on apical leak-age of canal obturation. Forty-eight single-rooted teeth were used in this study. The teeth were instrumented up to a size 40 K-file and irrigated with 2.5% NaOCl between each fie size. And the teeth were divided into 4 groups. In group A, the root canals were irrigated with a final flush of 5ml 2.5% NaOCl as a control group. The teeth in group B were irrigated with a final flush of 5ml 17% EDTA. The teeth in group C and D were irradiated by pulsed Nd：YAG laser(laser parameters were set at 1W, 100mJ, 10Hz, and 2W, 100mJ, 20Hz respectively). The results were as follows : 1. Apical leakage was observed in 50% of samples in group A, 30% of samples in group B, 20% of samples in group C, and 10% of samples in group D. 2. The teeth in group B had less leakage than group A, but there was no statistically significant differences(p＞0.05). 3. The teeth in group C, D had less leakage than group A, and there was statistically significant differences(p＜0.05). 4. The teeth in group C, D had less leakage than group B, but there was no statistically significant differences(p＞0.05). 5. There was no significant differences in apical leakage between group C and group D(p＞0.05).

Keywords

References

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