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Article: Light and scanning electron microscopic observation of human dental occlusal enamel treated by pulsed Nd:YAG laser with fluoride

TitleLight and scanning electron microscopic observation of human dental occlusal enamel treated by pulsed Nd:YAG laser with fluoride
Authors
KeywordsDental enamel
Nd:YAG laser
Scanning electron microscope
Silver fluoride
Sodium fluoride
Tooth morphology
Issue Date1998
PublisherOld City Publishing, Inc. The Journal's web site is located at http://www.oldcitypublishing.com/LILS/LILS.html
Citation
Lasers In The Life Sciences, 1998, v. 8 n. 1, p. 13-26 How to Cite?
AbstractThe purpose of this study was to compare morphological changes of human occlusal enamel following pulsed Nd:YAG laser treatment with black ink, 38% Ag(NH 3) 2F or 2% NaF. Twenty-five extracted human teeth were randomly assigned to 5 groups: (1) non-treated group; (2) pulsed Nd:YAG laser treated only; (3) pulsed Nd:YAG laser irradiation after applying black ink; (4) pulsed Nd:YAG laser irradiation after applying 38% Ag(NH 3) 2F for 1 min; (5) pulsed Nd:YAG laser irradiation followed by applying 2% NaF for 4 min. The laser used in this study was pulsed Nd:YAG laser with pulse duration of 150 μs, pulse repetition of 20 pps, power of 2 W, and energy density was 48 J/cm 2. Specimens were observed by light and scanning electron microscope. Laser-induced enamel surface changes included melting and resolidification. Morphological changes of the specimens treated by laser after applying 38% Ag(NH 3) 2F for 1 min were similar to those of specimens lased after applying black ink except 1-2 μm diameter spheres on the former surface. The specimens of laser treatment followed by applying 2% NaF. for 4 min showed relatively smooth surfaces. By light microscope, the ground sections of each treatment group exhibited different depth of melted enamel. These results suggested that 38% Ag(NH 3) 2F could serve both as absorptive mediator and fluoride: applying 2% NaF for 4 min after laser irradiation could make the porous melted surface smoother.
Persistent Identifierhttp://hdl.handle.net/10722/90620
ISSN
2004 SCImago Journal Rankings: 0.246

 

DC FieldValueLanguage
dc.contributor.authorZhang, Cen_HK
dc.contributor.authorKimura, Yen_HK
dc.contributor.authorNakamura, Yen_HK
dc.contributor.authorMatsumoto, Ken_HK
dc.date.accessioned2010-09-17T10:05:48Z-
dc.date.available2010-09-17T10:05:48Z-
dc.date.issued1998en_HK
dc.identifier.citationLasers In The Life Sciences, 1998, v. 8 n. 1, p. 13-26en_HK
dc.identifier.issn0886-0467en_HK
dc.identifier.urihttp://hdl.handle.net/10722/90620-
dc.description.abstractThe purpose of this study was to compare morphological changes of human occlusal enamel following pulsed Nd:YAG laser treatment with black ink, 38% Ag(NH 3) 2F or 2% NaF. Twenty-five extracted human teeth were randomly assigned to 5 groups: (1) non-treated group; (2) pulsed Nd:YAG laser treated only; (3) pulsed Nd:YAG laser irradiation after applying black ink; (4) pulsed Nd:YAG laser irradiation after applying 38% Ag(NH 3) 2F for 1 min; (5) pulsed Nd:YAG laser irradiation followed by applying 2% NaF for 4 min. The laser used in this study was pulsed Nd:YAG laser with pulse duration of 150 μs, pulse repetition of 20 pps, power of 2 W, and energy density was 48 J/cm 2. Specimens were observed by light and scanning electron microscope. Laser-induced enamel surface changes included melting and resolidification. Morphological changes of the specimens treated by laser after applying 38% Ag(NH 3) 2F for 1 min were similar to those of specimens lased after applying black ink except 1-2 μm diameter spheres on the former surface. The specimens of laser treatment followed by applying 2% NaF. for 4 min showed relatively smooth surfaces. By light microscope, the ground sections of each treatment group exhibited different depth of melted enamel. These results suggested that 38% Ag(NH 3) 2F could serve both as absorptive mediator and fluoride: applying 2% NaF for 4 min after laser irradiation could make the porous melted surface smoother.en_HK
dc.languageengen_HK
dc.publisherOld City Publishing, Inc. The Journal's web site is located at http://www.oldcitypublishing.com/LILS/LILS.htmlen_HK
dc.relation.ispartofLasers in the Life Sciencesen_HK
dc.subjectDental enamelen_HK
dc.subjectNd:YAG laseren_HK
dc.subjectScanning electron microscopeen_HK
dc.subjectSilver fluorideen_HK
dc.subjectSodium fluorideen_HK
dc.subjectTooth morphologyen_HK
dc.titleLight and scanning electron microscopic observation of human dental occlusal enamel treated by pulsed Nd:YAG laser with fluorideen_HK
dc.typeArticleen_HK
dc.identifier.emailZhang, C:zhangcf@hku.hken_HK
dc.identifier.authorityZhang, C=rp01408en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0031973781en_HK
dc.identifier.volume8en_HK
dc.identifier.issue1en_HK
dc.identifier.spage13en_HK
dc.identifier.epage26en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridZhang, C=7405494609en_HK
dc.identifier.scopusauthoridKimura, Y=35336991000en_HK
dc.identifier.scopusauthoridNakamura, Y=7406387933en_HK
dc.identifier.scopusauthoridMatsumoto, K=7601608153en_HK

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