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Conference Paper: A micro-structural study of caries arrested with silver diamine fluoride

TitleA micro-structural study of caries arrested with silver diamine fluoride
Authors
KeywordsCollagen
Dentin
Fluoride
Remineralization and silver
Issue Date2014
PublisherSage Publications, Inc. The Journal's web site is located at http://www.sagepub.com/journalsProdDesc.nav?prodId=Journal201925
Citation
The 92nd General Session & Exhibition of the International Association for Dental Research (IADR), Cape Town, South Africa, 25-28 June 2014. In Journal of Dental Research, 2014, v. 93 n. Special issue B: abstract no. 612 How to Cite?
AbstractObjective: To compare the micro-structural differences between primary carious teeth in young children biannually treated with silver diamine fluoride (SDF) and carious teeth without such treatment. Method: Eight carious primary upper-central incisors were collected from 6-year-old children. Four teeth had arrested caries after 24-month biannual SDF applications and 4 had active caries when there was no topical fluoride treatment. The elemental contents and surface morphology of cavitated dentinal lesion were assessed by energy-dispersive X-ray spectrometry (EDX) and scanning electrode microscopy (SEM). Result: EDX examination detected a higher intensity of calcium and phosphate within approximately 150 µm from the surface (surface zone) than in the inner zone, but this zone was absent in the active cavitated dentinal lesion. The surface morphology of the arrested dentinal lesion under SEM showed a relatively smooth surface with few dentin collagen fibres exposed. Dense granular structures of spherical grains were found in the inter-tubular area at high magnification. The surface morphology of the active dentinal lesion was porous and rough. Collagens were found to be exposed, disorganized, and sparsely distributed at high magnification. Conclusion: A remineralised zone rich in calcium and phosphate was found on the arrested cavitated dentinal lesion of primary teeth which were treated with SDF applications. The collagens were protected from being exposed in the arrested cavitated dentinal lesion.
DescriptionPoster Presentation
Session 97: Fluoride and Ca-based Products
Persistent Identifierhttp://hdl.handle.net/10722/199327
ISSN
2015 Impact Factor: 4.602
2015 SCImago Journal Rankings: 1.714

 

DC FieldValueLanguage
dc.contributor.authorChu, CHen_US
dc.contributor.authorMei, Len_US
dc.contributor.authorLo, ECMen_US
dc.date.accessioned2014-07-22T01:13:39Z-
dc.date.available2014-07-22T01:13:39Z-
dc.date.issued2014en_US
dc.identifier.citationThe 92nd General Session & Exhibition of the International Association for Dental Research (IADR), Cape Town, South Africa, 25-28 June 2014. In Journal of Dental Research, 2014, v. 93 n. Special issue B: abstract no. 612en_US
dc.identifier.issn0022-0345-
dc.identifier.urihttp://hdl.handle.net/10722/199327-
dc.descriptionPoster Presentation-
dc.descriptionSession 97: Fluoride and Ca-based Products-
dc.description.abstractObjective: To compare the micro-structural differences between primary carious teeth in young children biannually treated with silver diamine fluoride (SDF) and carious teeth without such treatment. Method: Eight carious primary upper-central incisors were collected from 6-year-old children. Four teeth had arrested caries after 24-month biannual SDF applications and 4 had active caries when there was no topical fluoride treatment. The elemental contents and surface morphology of cavitated dentinal lesion were assessed by energy-dispersive X-ray spectrometry (EDX) and scanning electrode microscopy (SEM). Result: EDX examination detected a higher intensity of calcium and phosphate within approximately 150 µm from the surface (surface zone) than in the inner zone, but this zone was absent in the active cavitated dentinal lesion. The surface morphology of the arrested dentinal lesion under SEM showed a relatively smooth surface with few dentin collagen fibres exposed. Dense granular structures of spherical grains were found in the inter-tubular area at high magnification. The surface morphology of the active dentinal lesion was porous and rough. Collagens were found to be exposed, disorganized, and sparsely distributed at high magnification. Conclusion: A remineralised zone rich in calcium and phosphate was found on the arrested cavitated dentinal lesion of primary teeth which were treated with SDF applications. The collagens were protected from being exposed in the arrested cavitated dentinal lesion.-
dc.languageengen_US
dc.publisherSage Publications, Inc. The Journal's web site is located at http://www.sagepub.com/journalsProdDesc.nav?prodId=Journal201925-
dc.relation.ispartofJournal of Dental Researchen_US
dc.rightsJournal of Dental Research. Copyright © Sage Publications, Inc.-
dc.subjectCollagen-
dc.subjectDentin-
dc.subjectFluoride-
dc.subjectRemineralization and silver-
dc.titleA micro-structural study of caries arrested with silver diamine fluorideen_US
dc.typeConference_Paperen_US
dc.identifier.emailChu, CH: chchu@hku.hken_US
dc.identifier.emailMei, L: mei1123@hku.hken_US
dc.identifier.emailLo, ECM: edward-lo@hku.hken_US
dc.identifier.authorityChu, CH=rp00022en_US
dc.identifier.authorityMei, L=rp01840en_US
dc.identifier.authorityLo, ECM=rp00015en_US
dc.identifier.hkuros231063en_US
dc.identifier.volume93en_US
dc.identifier.issueSpecial issue B: abstract no. 612en_US
dc.publisher.placeUnited States-

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