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Article: Effect of aging and caries on dentin permeability.

TitleEffect of aging and caries on dentin permeability.
Authors
KeywordsTagami, J.
Department Of Operative Dentistry, Tokyo Medical And Dental University, Japan., © Medline Is The Source For The Citation And Abstract Of This Record.
Issue Date1992
PublisherFinnish Dental Society
Citation
Proceedings Of The Finnish Dental Society. Suomen Hammaslaakariseuran Toimituksia, 1992, v. 88 Suppl 1, p. 149-154 How to Cite?
AbstractExtracted human teeth were collected from young (20-28 yrs) versus old (45-69 yrs) patients. The teeth were divided into carious and noncarious groups. Slabs were created from the mid-coronal occlusal dentin. Carious lesions were excavated and the smear layers on both normal and excavated carious dentin were removed with 37% phosphoric acid (1 min). The permeability (hydraulic conductance) of old normal dentin was only 20% of that obtained in young normal dentin but all of the specimens were permeable. Young carious dentin was only 14% as permeable as young normal dentin and only 1 out of 7 specimens was not permeable. All 7 specimens of old carious dentin were impermeable. Scanning electron microscopy of old and carious dentin exhibited far more intratubular crystals than normal dentin, providing a structural basis for the functional observation.
Persistent Identifierhttp://hdl.handle.net/10722/90718
ISSN

 

DC FieldValueLanguage
dc.contributor.authorTagami, Jen_HK
dc.contributor.authorHosoda, Hen_HK
dc.contributor.authorBurrow, MFen_HK
dc.contributor.authorNakajima, Men_HK
dc.date.accessioned2010-09-17T10:07:15Z-
dc.date.available2010-09-17T10:07:15Z-
dc.date.issued1992en_HK
dc.identifier.citationProceedings Of The Finnish Dental Society. Suomen Hammaslaakariseuran Toimituksia, 1992, v. 88 Suppl 1, p. 149-154en_HK
dc.identifier.issn0355-4651en_HK
dc.identifier.urihttp://hdl.handle.net/10722/90718-
dc.description.abstractExtracted human teeth were collected from young (20-28 yrs) versus old (45-69 yrs) patients. The teeth were divided into carious and noncarious groups. Slabs were created from the mid-coronal occlusal dentin. Carious lesions were excavated and the smear layers on both normal and excavated carious dentin were removed with 37% phosphoric acid (1 min). The permeability (hydraulic conductance) of old normal dentin was only 20% of that obtained in young normal dentin but all of the specimens were permeable. Young carious dentin was only 14% as permeable as young normal dentin and only 1 out of 7 specimens was not permeable. All 7 specimens of old carious dentin were impermeable. Scanning electron microscopy of old and carious dentin exhibited far more intratubular crystals than normal dentin, providing a structural basis for the functional observation.en_HK
dc.languageengen_HK
dc.publisherFinnish Dental Societyen_HK
dc.relation.ispartofProceedings of the Finnish Dental Society. Suomen Hammaslaakariseuran toimituksiaen_HK
dc.subjectTagami, J.en_HK
dc.subjectDepartment Of Operative Dentistry, Tokyo Medical And Dental University, Japan., © Medline Is The Source For The Citation And Abstract Of This Record.en_HK
dc.subject.meshAdulten_HK
dc.subject.meshAgeden_HK
dc.subject.meshAging - metabolism - pathologyen_HK
dc.subject.meshCrystallographyen_HK
dc.subject.meshDental Caries - metabolism - pathologyen_HK
dc.subject.meshDentin - metabolism - ultrastructureen_HK
dc.subject.meshDentin Permeabilityen_HK
dc.subject.meshHumansen_HK
dc.subject.meshMicroscopy, Electron, Scanningen_HK
dc.subject.meshMiddle Ageden_HK
dc.titleEffect of aging and caries on dentin permeability.en_HK
dc.typeArticleen_HK
dc.identifier.emailBurrow, MF:mfburr58@hku.hken_HK
dc.identifier.authorityBurrow, MF=rp01306en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.pmid1508869-
dc.identifier.scopuseid_2-s2.0-0026481648en_HK
dc.identifier.volume88 Suppl 1en_HK
dc.identifier.spage149en_HK
dc.identifier.epage154en_HK
dc.publisher.placeFinlanden_HK
dc.identifier.scopusauthoridTagami, J=7005967527en_HK
dc.identifier.scopusauthoridHosoda, H=7102404396en_HK
dc.identifier.scopusauthoridBurrow, MF=7005876730en_HK
dc.identifier.scopusauthoridNakajima, M=7402942991en_HK

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