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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 31 to 40 of 777 (0.385 seconds)| 31 |
Quantitative measurements of the demineralisation rates and mineral masses of deciduous and permanent enamelHassanali, Linda January 2018 (has links)
Human deciduous and permanent enamel samples were simultaneously exposed to 0.1 M acetic acid pH 4.0 solution with an increasing calcium and phosphate concentration. Demineralisation rates at each calcium and phosphate increment were measured by scanning microradiography (SMR) to monitor in real-time the demineralisation trend. No significant differences (p > 0.05) were observed between baseline demineralisation rates of each enamel type. Similarities in the demineralisation trend as a function of increasing calcium and phosphate concentration were also observed. SMR detected a halt in demineralisation rate at 30 mM and 32.5 mM calcium concentration for permanent and deciduous enamel equilibrium between the solution and enamel samples had been achieved. Comparisons of the SMR data with a speciation software program indicated the solubility product of deciduous and permanent enamel is 121 in pH 4.0 and 25 ⁰C conditions. X-ray Microtomography (XMT) results of the mineral concentrations of each enamel type showed no significant differences (p > 0.05) and Confocal laser scanning microscopy (CLSM) image analysis of rhodamine B dye infiltration showed no significant differences between the interprismatic regions of each enamel type (p >0.05), complementing the SMR data. Permanent enamel exhibited significantly larger prism head diameters near to the surface of enamel compared to near the EDJ, whereas prism head diameters in deciduous enamel remained relatively constant throughout enamel. Thus the high caries incidence rates amongst children may be due to a lower level of protection offered by saliva and the oral environment of a child compared to an adult rather than the structure and the physical chemistry of the tissue itself.
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Developmental defects of enamelWong, Hai Ming, January 2005 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2005. / Title proper from title frame. Also available in printed format.
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Ultra-structural aspects of human enamel surface pretreatmentsZhu, Jiajun, 朱嘉珺 January 2014 (has links)
abstract / Dentistry / Doctoral / Doctor of Philosophy
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Enamel microstructures of cricetid and heteromyid rodent incisors and their importance in rodent phylogenyFlynn, Lawrence J. January 1977 (has links)
No description available.
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An assessment of fluoride uptake by an in vivo human enamel biopsy following three different topical fluoride treatments / Fluoride uptake by human enamel.Bartos, Josef, 1942- January 1974 (has links)
No description available.
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Thermal analysis of dental enamelCorcia, John Trent 05 1900 (has links)
No description available.
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Metal enameling and its use in the mosaic techniqueAnderson, Rowenna Louise January 1957 (has links)
There is no abstract available for this thesis.
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A modern epidemiological study of enamel hypoplasia : a putative model for the study of physiological stress in past human populationsDobney, Keith Mark January 1991 (has links)
No description available.
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Incremental structures of enamel and their applications to archaeologyBullion, S. K. January 1987 (has links)
No description available.
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Remineralization of demineralized human tooth enamel a pilot clinical study /Abrahams, Lewis J. January 1979 (has links)
Thesis (M.S.)--University of Michigan, Ann Arbor, 1979. / Typescript (photocopy). Includes bibliographical references (leaves 51-57). Also issued in print.
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