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Article: Effects of pulsed Nd:YAG laser irradiation on root canal wall dentin with different laser initiators

TitleEffects of pulsed Nd:YAG laser irradiation on root canal wall dentin with different laser initiators
Authors
Issue Date1998
PublisherElsevier Inc. The Journal's web site is located at http://www.jendodon.com
Citation
Journal Of Endodontics, 1998, v. 24 n. 5, p. 352-355 How to Cite?
AbstractThe effects of pulsed Nd:YAG laser irradiation with different laser initiators on the permeability and ultrastructure of the root canal wall dentin were investigated in vitro. Forty extracted human singlerooted teeth were randomly assigned to four groups. Group 1 teeth were not lased as a control. Group 2 specimens received four 10-s duration laser exposures for a total exposure of 40 s/canal. In group 3 specimens, the root canals were painted with black ink and then lased by the same method as group 2 teeth. In group 4 specimens, root canals were treated with 38% Ag(NH 3) 2F and then lased by the same method as group 2 teeth. Laser parameters were set at 2 W, 20 pps. After being placed in 0.6% rhodamine B solution for 48 h, the teeth were sectioned for study by stereoscope and scanning electron microscopy. Statistical analysis showed there were significant differences (p < 0.05) in dentin permeability in the apical areas between groups 3 and 1, 4 and 1, and 4 and 2. Scanning electron microscopic examination showed that laser treatment alone had no obvious effects on the root canal wall. The root canal surfaces prepared for by laser irradiation with black ink or 38% Ag(NH 3) 2F revealed melting, smear layer evaporation, and open dentinal tubules. Black ink was more effective than 38% Ag(NH 3) 2F as a Nd:YAG laser initiator. Copyright © 1998 by The American Association of Endodontists.
Persistent Identifierhttp://hdl.handle.net/10722/154022
ISSN
2015 Impact Factor: 2.904
2015 SCImago Journal Rankings: 1.681
References

 

DC FieldValueLanguage
dc.contributor.authorZhang, Cen_US
dc.contributor.authorKimura, Yen_US
dc.contributor.authorMatsumoto, Ken_US
dc.contributor.authorHarashima, Ten_US
dc.contributor.authorZhou, Hen_US
dc.date.accessioned2012-08-08T08:22:51Z-
dc.date.available2012-08-08T08:22:51Z-
dc.date.issued1998en_US
dc.identifier.citationJournal Of Endodontics, 1998, v. 24 n. 5, p. 352-355en_US
dc.identifier.issn0099-2399en_US
dc.identifier.urihttp://hdl.handle.net/10722/154022-
dc.description.abstractThe effects of pulsed Nd:YAG laser irradiation with different laser initiators on the permeability and ultrastructure of the root canal wall dentin were investigated in vitro. Forty extracted human singlerooted teeth were randomly assigned to four groups. Group 1 teeth were not lased as a control. Group 2 specimens received four 10-s duration laser exposures for a total exposure of 40 s/canal. In group 3 specimens, the root canals were painted with black ink and then lased by the same method as group 2 teeth. In group 4 specimens, root canals were treated with 38% Ag(NH 3) 2F and then lased by the same method as group 2 teeth. Laser parameters were set at 2 W, 20 pps. After being placed in 0.6% rhodamine B solution for 48 h, the teeth were sectioned for study by stereoscope and scanning electron microscopy. Statistical analysis showed there were significant differences (p < 0.05) in dentin permeability in the apical areas between groups 3 and 1, 4 and 1, and 4 and 2. Scanning electron microscopic examination showed that laser treatment alone had no obvious effects on the root canal wall. The root canal surfaces prepared for by laser irradiation with black ink or 38% Ag(NH 3) 2F revealed melting, smear layer evaporation, and open dentinal tubules. Black ink was more effective than 38% Ag(NH 3) 2F as a Nd:YAG laser initiator. Copyright © 1998 by The American Association of Endodontists.en_US
dc.languageengen_US
dc.publisherElsevier Inc. The Journal's web site is located at http://www.jendodon.comen_US
dc.relation.ispartofJournal of Endodonticsen_US
dc.titleEffects of pulsed Nd:YAG laser irradiation on root canal wall dentin with different laser initiatorsen_US
dc.typeArticleen_US
dc.identifier.emailZhang, C:zhangcf@hku.hken_US
dc.identifier.authorityZhang, C=rp01408en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0032059266en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032059266&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume24en_US
dc.identifier.issue5en_US
dc.identifier.spage352en_US
dc.identifier.epage355en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridZhang, C=7405494609en_US
dc.identifier.scopusauthoridKimura, Y=35336991000en_US
dc.identifier.scopusauthoridMatsumoto, K=7601608153en_US
dc.identifier.scopusauthoridHarashima, T=14832528900en_US
dc.identifier.scopusauthoridZhou, H=15731971800en_US

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