Results 211 to 220 of about 46,767 (261)
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Journal of Crystal Growth, 1981
Abstract In this paper a survey is given on tooth remineralization from remineralizing solutions and from saliva. The substrate, sound tooth enamel, is described from a chemical as well as from an ultrastructural point of view. Because saliva plays a crucial role in in vivo remineralizations, the most relevant properties of saliva, such as the ...
Arends, J., ten Cate, J.M.
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Abstract In this paper a survey is given on tooth remineralization from remineralizing solutions and from saliva. The substrate, sound tooth enamel, is described from a chemical as well as from an ultrastructural point of view. Because saliva plays a crucial role in in vivo remineralizations, the most relevant properties of saliva, such as the ...
Arends, J., ten Cate, J.M.
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Organic Matrix of Tooth Enamel
Nature, 1960LITTLE is known about the chemical nature of the organic matrix of enamel, although it presumably plays an essential part in the initiation and organization of the growth of hydroxyapatite crystals. The mature enamel finally resulting from these processes is the hardest and most highly mineralized of vertebrate tissues. Other mineralized tissues, bone1
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Protein conformation in rat tooth enamel
Archives of Oral Biology, 1986Orientated 0.47 nm reflections in X-ray diffraction patterns of developing rat tooth enamel were confirmed using a wide range of specimen preparations and experimental conditions. This indicates that some of the organic matrix proteins adopt a beta-sheet conformation.
A, Jodaikin, W, Traub, S, Weiner
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Microstructural features of dipnoan tooth enamel
Archives of Oral Biology, 1990Tooth plates of extant lungfishes were examined by contact microradiography, light microscopy and TEM, to elucidate the nature and origin of the hypermineralized surface layer. TEM indicated that the matrix of this layer consisted of organic filamentous material, and no collagen fibres were seen in the matrix. The matrix appeared to be secreted by oral
M, Ishiyama, Y, Teraki
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Enamel-bonded immediate tooth replacement
American Journal of Orthodontics, 1978A significant problem which faces the orthodontist from time to time is that of the patient who suffers the sudden loss of an anterior tooth. All too often, it seems, this occurs just as highly favorable orthodontic treatment is being concluded. Most often the course of such a situation is traumatic evulsion or injury requiring extraction of the tooth.
B, Rakow, E I, Light
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Enamel Regeneration in Making a Bioengineered Tooth
Current Stem Cell Research & Therapy, 2015Overall enamel is the hard tissue overlying teeth that is vulnerable to caries, congenital defects, and damage due to trauma. Not only is enamel incapable of self-repair in most species, but it is also subject to attrition. Besides the use of artificial materials to restore enamel, enamel regeneration is a promising approach to repair enamel damage. In
Ruoshi, Xu +8 more
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Mechanics of microwear traces in tooth enamel
Acta Biomaterialia, 2015It is hypothesized that microwear traces in natural tooth enamel can be simulated and quantified using microindentation mechanics. Microcontacts associated with particulates in the oral wear medium are modeled as sharp indenters with fixed semi-apical angle.
Oscar, Borrero-Lopez +3 more
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Thermal decomposition of human tooth enamel
Calcified Tissue International, 1980Further insight into human tooth enamel, dense fraction (TE), has been obtained by following the change and loss of CO3(2-), OH-, structurally incorporated H2O, Cl-, and, indirectly, HPO4(2-) after TE had been heated in N2 or vacuum in the range 25-1000 degrees C.
D W, Holcomb, R A, Young
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The British Journal of Radiology, 1936
X-ray examination of tooth enamel has shown that the apatite crystals, of which the enamel is composed, are preferentially oriented. The crystals are so arranged that their hexagonal axes tend to be parallel to the same direction—the fibre-axis. In dogs' teeth the fibre-axis is at right-angles to the tooth surface.
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X-ray examination of tooth enamel has shown that the apatite crystals, of which the enamel is composed, are preferentially oriented. The crystals are so arranged that their hexagonal axes tend to be parallel to the same direction—the fibre-axis. In dogs' teeth the fibre-axis is at right-angles to the tooth surface.
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Ectopic Tooth Enamel. An SEM Study of the Structure of Enamel in Enamel Pearls
Advances in Dental Research, 1989Eighteen human molars with enamel pearls ranging in diameter from 0.8 to 2.7 mm were sectioned, acid-etched, and processed for SEM observation. In addition to pearl enamel, the specimens contained crown enamel for comparison. All pearls were of the composite type.
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