Results 241 to 250 of about 668,429 (289)
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Proteomics and Genetics of Dental Enamel
Cells Tissues Organs, 2005The initiation of enamel crystals at the dentino-enamel junction is associated with the expression of dentin sialophosphoprotein (<i>DSPP,</i> a gene normally linked with dentin formation), three ‘structural’ enamel proteins – amelogenin <i>(AMELX),</i> enamelin <i>(ENAM),</i> and ameloblastin <i>(AMBN)</i ...
Jan C-C, Hu +4 more
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Strontium Incorporation into Dental Enamel
Science, 1966Rats were raised on diets either rich or poor in strontium. Powder x-ray diffraction patterns suggest that isomorphous substitution of strontium for calcium occurs in the apatite of tooth enamel, and that strontium may form Sr 6 H 3 (PO 4 ) ⋅ 2H 2
A R, Johnson, W D, Armstrong, L, Singer
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Enamel Opacities and Dental Esthetics
Journal of Public Health Dentistry, 1995Abstract Objectives: The purpose of this study was to determine the esthetic importance of different types of developmental enamel defect. Methods: In the first method used, individual subjects from three different populations with less than 0.1, 0.7, and 0.9 ppm fluoride in their drinking water, were asked about the appearance of their teeth and ...
R P, Ellwood, D, O'Mullane
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Trapped Water of Dental Enamel
Nature, 1965RECENT investigations with polarizing microscopy have indicated that some of the water of dental enamel is not easily removed by dehydrating methods. Somewhat more severe treatment of enamel is necessary to remove the last portion of water and these more drastic conditions bring about irreversible changes in enamel1.
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The prevalence of dental caries, enamel opacities and enamel hypoplasia in Ugandans
Archives of Oral Biology, 1972Abstract An epidemiological survey on the prevalence of dental caries, enamel opacities and enamel hypoplasia was conducted on 1399 persons in four districts in Uganda with fluoride in the drinking water varying from 0.11 to 3.00 ppm. The dental caries experience was found to be very low (0.0–0.9 DMF-T per person in the 5–9 yr age group and 0.4–2.8 ...
I J, Moller +2 more
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Morphology of dental enamel and dentine–enamel junction in osteogenesis imperfecta
International Journal of Paediatric Dentistry, 1999Objectives. The aim of this study was to examine the morphology of primary and permanent human enamel, and the dentine–enamel junction, in individuals with osteogenesis imperfecta (OI) type I, III and IV in undecalcified sections using polarized light microscopy, microradiography and scanning electron microscopy (SEM), and to relate the findings to ...
B M, Lindau +5 more
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The Effect of Copper on Demineralization of Dental Enamel
Journal of Dental Research, 2006Previous studies have concluded that copper might inhibit enamel demineralization in vitro. Our aim was to assess the effect of copper (Cu 2+ ), with and without amine fluoride, on human dental enamel under cariogenic challenge in situ.
A Z, Abdullah +3 more
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2014
Enamel formation Enamel is the outermost covering of vertebrate teeth and the hardest tissue in the vertebrate body. During tooth development, ectoderm-derived ameloblast cells create enamel by synthesizing a complex protein mixture into the extracellular space where the proteins self-assemble to form a matrix that patterns the woven hydroxyapatite ...
Xanthippi Chatzistavrou +1 more
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Enamel formation Enamel is the outermost covering of vertebrate teeth and the hardest tissue in the vertebrate body. During tooth development, ectoderm-derived ameloblast cells create enamel by synthesizing a complex protein mixture into the extracellular space where the proteins self-assemble to form a matrix that patterns the woven hydroxyapatite ...
Xanthippi Chatzistavrou +1 more
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Clinical Orthopaedics and Related Research, 1966
G, Nikiforuk, R F, Sognnaes
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G, Nikiforuk, R F, Sognnaes
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THE VITALITY OF THE DENTAL ENAMEL
Journal of the American Medical Association, 1909My interest in this subject has been renewed recently by being shown some very beautiful sections and photographs of enamel prepared by Dr. C. Francis Bodecker, of Berlin. The sections were decalcified by the celloidin decalcifying method which stains the tissue at the same time. The photographs were made by the ultraviolet light. These enamel sections
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