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Article: Effect of silver and fluoride ions on enamel demineralization: a quantitative study using micro-computed tomography

TitleEffect of silver and fluoride ions on enamel demineralization: a quantitative study using micro-computed tomography
Authors
Issue Date2012
PublisherWiley-Blackwell Publishing Ltd.. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0045-0421
Citation
Australian Dental Journal, 2012, v. 57 n. 1, p. 65-70 How to Cite?
AbstractBACKGROUND: This study aimed to investigate the effect of silver and fluoride ions on demineralization of enamel. METHODS: The coronal parts of 40 extracted sound premolars were prepared into tooth blocks. An unvarnished occlusal surface window (OW) and a flat buccal/lingual surface window (FW) were created for each tooth by covering all other surfaces with an acid-resistant varnish. These blocks were randomly allocated into four groups of 10 blocks each and immersed in respective solutions for 5 minutes: Group 1--2.36 M silver fluoride; Group 2--2.36 M potassium fluoride; Group 3--2.36 M silver nitrate; and Group 4--deionized water. After 7-day immersion in a buffered demineralization solution at pH 4.4, micro-CT scans were taken. RESULTS: Mean lesion depth in the FW area for tooth blocks in AgF, KF, AgNO(3) and control groups were 0 mum, 3.3 +/- 10.3 mum, 156.3 +/- 30.8 mum, and 173.6 +/- 48.6 mum, respectively (p < 0.001). The difference in mean lesion depth between the AgNO(3) and control groups was not statistically significant (p > 0.05). Similar OW and FW lesions were observed in tooth blocks in the AgNO(3) and control groups. CONCLUSIONS: Topical application of a 2.36 M fluoride solution can inhibit demineralization of enamel while topical application of silver ions has little effect.
Persistent Identifierhttp://hdl.handle.net/10722/145859
ISSN
2015 Impact Factor: 1.272
2015 SCImago Journal Rankings: 0.482
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council of Hong KongHKU771207M
Funding Information:

This study was funded by the Research Grants Council of Hong Kong (Ref no. HKU771207M) and was based on a thesis submitted to the Faculty of Dentistry, University of Hong Kong, in partial fulfilment of the requirement for a PhD degree.

 

DC FieldValueLanguage
dc.contributor.authorLiu, BYen_US
dc.contributor.authorLo, ECMen_US
dc.contributor.authorLi, CMTen_US
dc.date.accessioned2012-03-27T07:59:52Z-
dc.date.available2012-03-27T07:59:52Z-
dc.date.issued2012en_US
dc.identifier.citationAustralian Dental Journal, 2012, v. 57 n. 1, p. 65-70en_US
dc.identifier.issn0045-0421-
dc.identifier.urihttp://hdl.handle.net/10722/145859-
dc.description.abstractBACKGROUND: This study aimed to investigate the effect of silver and fluoride ions on demineralization of enamel. METHODS: The coronal parts of 40 extracted sound premolars were prepared into tooth blocks. An unvarnished occlusal surface window (OW) and a flat buccal/lingual surface window (FW) were created for each tooth by covering all other surfaces with an acid-resistant varnish. These blocks were randomly allocated into four groups of 10 blocks each and immersed in respective solutions for 5 minutes: Group 1--2.36 M silver fluoride; Group 2--2.36 M potassium fluoride; Group 3--2.36 M silver nitrate; and Group 4--deionized water. After 7-day immersion in a buffered demineralization solution at pH 4.4, micro-CT scans were taken. RESULTS: Mean lesion depth in the FW area for tooth blocks in AgF, KF, AgNO(3) and control groups were 0 mum, 3.3 +/- 10.3 mum, 156.3 +/- 30.8 mum, and 173.6 +/- 48.6 mum, respectively (p < 0.001). The difference in mean lesion depth between the AgNO(3) and control groups was not statistically significant (p > 0.05). Similar OW and FW lesions were observed in tooth blocks in the AgNO(3) and control groups. CONCLUSIONS: Topical application of a 2.36 M fluoride solution can inhibit demineralization of enamel while topical application of silver ions has little effect.-
dc.languageengen_US
dc.publisherWiley-Blackwell Publishing Ltd.. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0045-0421-
dc.relation.ispartofAustralian Dental Journalen_US
dc.rightsThe definitive version is available at www3.interscience.wiley.com-
dc.subject.meshDental Enamel - pathology - radiography-
dc.subject.meshFluorides - pharmacology - therapeutic use-
dc.subject.meshPotassium Compounds - pharmacology - therapeutic use-
dc.subject.meshSilver Compounds - pharmacology - therapeutic use-
dc.subject.meshTooth Demineralization - prevention and control - radiography-
dc.titleEffect of silver and fluoride ions on enamel demineralization: a quantitative study using micro-computed tomographyen_US
dc.typeArticleen_US
dc.identifier.emailLo, ECM: hrdplcm@hkucc.hku.hken_US
dc.identifier.emailLi, CMT: carolmt@hku.hken_US
dc.identifier.authorityLo, ECM=rp00015en_US
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1834-7819.2011.01641.x-
dc.identifier.pmid22369560-
dc.identifier.scopuseid_2-s2.0-84863279988-
dc.identifier.hkuros198954en_US
dc.identifier.hkuros203776-
dc.identifier.volume57en_US
dc.identifier.issue1-
dc.identifier.spage65en_US
dc.identifier.epage70en_US
dc.identifier.isiWOS:000300830000011-
dc.publisher.placeUnited Kingdom-

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