Browse

Effect of Laser-activated Irrigation of 1320-NanometerNd:YAG Laser on Sealer Penetration in Curved Root Canals

Cited 28 time in Web of Science Cited 31 time in Scopus
Authors
Moon, Young-Mi; Kim, Hyeon-Cheol; Bae, Kwang-Shik; Baek, Seung-Ho; Shon, Won-Jun; Lee, WooCheol
Issue Date
2012-04
Publisher
ELSEVIER
Citation
JOURNAL OF ENDODONTICS Vol.38 No.4, pp. 531-535
Keywords
복합학EDTAlaser-activated irrigationNaOClNd:YAG lasersealer penetration
Abstract
The purpose of this study was to investigate
the efficacy of laser-activated irrigation (LAI) of
1320-nm neodymium-doped:yttrium-aluminum-garnet
(Nd:YAG) laser on sealer penetration into dentinal
tubules in the presence of 5.25% sodium hypochlorite
(NaOCl) or 17% ethylenediaminetetraacetic acid
(EDTA). Methods: The curved root canals (>20 ) from
63 extracted human molars (negative control, n = 3)
were prepared to size #30.06 with NaOCl irrigation.
Teeth were divided into 4 groups (n = 15) as follows:
group N, NaOCl irrigation without LAI; group E, EDTA
irrigation without LAI; group NL, LAI with NaOCl; group
EL, LAI with EDTA. In all groups, the laser fiber was inserted
and withdrawn 4 times for 5 seconds each. Teeth
were obturated with gutta-percha and fluorescentlabeled
sealer. Transverse sections at 2 and 5 mm
from root apex were examined with confocal laser scanning
microscopy, and the percentage of sealer penetration
into dentinal tubules was measured. Results:
Groups E, NL, and EL showed higher percentage of
sealer penetration than group N (P < .05). With NaOCl
as irrigant, LAI (group NL) resulted in significantly higher
amount of sealer penetration than nonactivated group
(group N) in both levels (P < .05). However, with
EDTA, no significant differences in sealer penetration
were observed between the laser-activated group
(group EL) and its nonactivated counterpart (group E)
in both levels (P > .05). Conclusions: The 1320-nm
Nd:YAG laser activation with either NaOCl or EDTA
was much better than NaOCl irrigation alone and as
effective as EDTA final flush for sealer penetration into
dentinal tubules. Additional use of laser with EDTA did
not improve the quality of obturation in the curved
canals.
ISSN
0099-2399
Language
English
URI
http://hdl.handle.net/10371/81872
DOI
https://doi.org/10.1016/j.joen.2011.12.008
Files in This Item:
There are no files associated with this item.
Appears in Collections:
College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse