The effects of EDTA and pulsed Nd:YAG laser on apical leakage of canal obturation.
10.5395/JKACD.2003.28.1.050
- Author:
Jin Soo KWON
1
;
Hee Joo LEE
;
Bock HUR
Author Information
1. Department of Conservative dentistry, Collage of Dentistry, Pusan National University, Korea. hjolee@pusan.ac.kr
- Publication Type:Original Article
- Keywords:
EDTA;
ND:YAG laser;
Smear layer;
Microleakage
- MeSH:
Dental Pulp Cavity;
Edetic Acid*;
Smear Layer;
Tooth
- From:Journal of Korean Academy of Conservative Dentistry
2003;28(1):50-56
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The purpose of this study was to evaluate the effects of EDTA and pulsed Nd:YAG laser on apical leakage 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 file 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).
