Please use this identifier to cite or link to this item: https://doi.org/10.1117/1.2360257
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dc.titleInvestigations on the dynamics of water in the macrostructural dentine
dc.contributor.authorKishen, A.
dc.contributor.authorRafique, A.
dc.date.accessioned2013-10-16T05:52:54Z
dc.date.available2013-10-16T05:52:54Z
dc.date.issued2006
dc.identifier.citationKishen, A., Rafique, A. (2006). Investigations on the dynamics of water in the macrostructural dentine. Journal of Biomedical Optics 11 (5) : -. ScholarBank@NUS Repository. https://doi.org/10.1117/1.2360257
dc.identifier.issn10833668
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/46907
dc.description.abstractThe purpose of this study was twofold: (1) to investigate the nature and degree of water loss at 21°C, 60% relative humidity (dehydration) and at 105°C (desiccation), and to relate these findings with (2) the strains produced in the dentine structure during dehydration and rehydration processes. In stage 1, digital moiré interferometry (DMI) was used to study the strain distribution pattern during dehydration and rehydration at 21°C. In stage 2, the nature and degree of water loss was determined using gravimetric analysis and nuclear magnetic resonance spectroscopy. DMI showed that dehydration produced strains in the dentine structure after an initial latent period. Gravimetric analysis showed that dentine exhibited an initial rapid water-loss phase followed by a slow and steady water-loss phase. Though the major portion of water loss occurred in the initial 2 h of dehydration (rapid water-loss phase), no obvious strains were produced during this period. Rehydration lead to the major reversal of dehydration-induced water loss and strains in dentine. Heating at 105°C resulted in further substantial loss of water from dentine. These experiments highlighted that the free water in the dentine surface, porosities and tubules are lost rapidly and constitute the major water lost when dehydrated at 21°C. © 2006 Society of Photo-Optical Instrumentation Engineers.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1117/1.2360257
dc.sourceScopus
dc.subjectDentine
dc.subjectMoiré interferometry
dc.subjectStrains
dc.subjectwater
dc.typeArticle
dc.contributor.departmentRESTORATIVE DENTISTRY
dc.description.doi10.1117/1.2360257
dc.description.sourcetitleJournal of Biomedical Optics
dc.description.volume11
dc.description.issue5
dc.description.page-
dc.description.codenJBOPF
dc.identifier.isiut000242576900022
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