(v. t.) A variety of glass, used in ornament, to cover a surface, as of metal or pottery, and admitting of after decoration in color, or used itself for inlaying or application in varied colors.
(v. t.) A glassy, opaque bead obtained by the blowpipe.
(v. t.) That which is enameled; also, any smooth, glossy surface, resembling enamel, especially if variegated.
(v. t.) The intensely hard calcified tissue entering into the composition of teeth. It merely covers the exposed parts of the teeth of man, but in many animals is intermixed in various ways with the dentine and cement.
(v. t.) To lay enamel upon; to decorate with enamel whether inlaid or painted.
(v. t.) To variegate with colors as if with enamel.
(v. t.) To form a glossy surface like enamel upon; as, to enamel card paper; to enamel leather or cloth.
(v. t.) To disguise with cosmetics, as a woman's complexion.
(v. i.) To practice the art of enameling.
(a.) Relating to the art of enameling; as, enamel painting.
Example Sentences:
(1) A total of 555 caries lesions were registered on proximal surfaces, 49.1% being primary lesions in the enamel, 21.4% primary lesions into the dentin and 29.5% secondary lesions.
(2) These cells contained organelles characteristic of the maturation stage ameloblast and often extended to the enamel surface, suggesting a possible origin from the ameloblast layer.
(3) It was found that there is a significant difference in bond strengths between enamel and stainless steel with strength to enamel the greater.
(4) Enamel was exclusively present opposite well developed dentine.
(5) Data is available to support the early influences of enamel organ epithelium upon a responding mesenchyme in the determination of dental morphogenetic fields (Dryburg, 1967; Miller, 1969).
(6) To determine the influence of cetylpyridinium chloride (CPC) adsorption on the wettability and elemental surface composition of human enamel, with and without adsorbed salivary constituents, surface-free energies and elemental compositions were determined.
(7) The 12-fluted bur caused no clinically identifiable marks on the enamel surface.
(8) Unaltered surface enamel of extracted human teeth was subjected to tests of resistance to dissolution in 10 mM acetic acid at pH 4.0 and 10 mM EDTA at pH 7.4 in a miniature continuous flow system.
(9) Secondary structural features of bovine amelogenin, a hydrophobic protein of developing enamel implicated in ename mineralization, are derived using 2D NMR spectroscopy in solution and molecular mechanics-dynamics studies.
(10) Several functional properties of MG1, MG2, and PRG have been examined, including their presence in two-hour in vivo enamel pellicle, binding to synthetic hydroxyapatite, lubricating properties, and interactions with oral streptococci.
(11) A thorough dental prophylaxis before acid-etching of enamel is often recommended.
(12) Changes of mineral content in the approximal enamel of the teeth were determined in situ with quantitative bite-wing radiography.
(13) On the fourth day of culture, the pre-ameloblasts achieved terminal differentiation into secretory ameloblasts, and enamel and dentin had already been deposited.
(14) This resulted in greater uniformity of abrasion over the enamel surface within the biopsy window area and better operator handling characteristics.
(15) The 33,000 molecular weight protease was also active against enamel proteins.
(16) Significantly more remineralization was observed in enamel samples treated with the toothpaste containing 2,500 ppm F compared to that containing 1500 ppm F. This result is consistent with the outcome of a recent caries clinical trial testing the same toothpastes and finding enhanced anticaries efficacy from the higher fluoride level.
(17) This demineralization was similar to enamel acid etched with 50% phosphoric acid for 2 mn.
(18) The data show that the structure of inner and outer enamel layers differ between these two carnivore species and that the enamel structure of the cat was most similar to that described in humans.
(19) Maturing enamel overlaid by either ruffle-ended or smooth-ended maturation ameloblasts showed similar Ca and P concentrations.
(20) Although the crystallite widths were similar in both AI and normal enamel, the AI teeth showed areas where the crystallite order and continuity appeared disrupted.
Variegate
Definition:
(v. t.) To diversify in external appearance; to mark with different colors; to dapple; to streak; as, to variegate a floor with marble of different colors.
Example Sentences:
(1) For the second propositus, a woman presenting with abdominal and psychiatric manifestations, the age of onset was 38 years; the acute attack had no recognizable cause; she had mild skin lesions and initially was incorrectly diagnosed as intermittent acute porphyria; the diagnosis of variegate porphyria was only established at the age of 50 years.
(2) Such characteristics are reminiscent of the behavior of variegating position-effects in Drosophila and the application of this paradigm to human disease phenotypes provides both a mechanism by which differential genome imprinting may be accomplished as well as genetic models that may explain the clinical association of syntenic diseases, the association between tumor progression and specific chromosomal aneuploidy and the unusual inheritance characteristics of many diseases.
(3) The diagnosis depends on fecal excretion of porphyrins, which is greatly increased in variegate porphyria and consists predominantly of protoporphyrin.
(4) Although clinical improvements occurred in the case of variegate porphyria, the results were inconclusive for reasons given.
(5) Appropriate laboratory tests on urine and feces samples are necessary to distinguish between PCTS and variegate porphyria when a young woman presents with the skin lesions characteristic of cutaneous hepatic porphyrias.
(6) One patient with variegate prophyria and two with hereditary coproporphyria had an attack related to pregnancy.
(7) The theory of the unconscious that arises from the method of direct interpretation reflects a differentiated inner world with variegated landscapes of images and frameworks.
(8) The faecal porphyrin patterns of 24 patients with porphyria cutanea tarda symptomatica (PCTS), eight patients with variegate porphyria, three patients with other types of porphyria, and 20 non-porphyrics subjects have been compared using a two-demensional thin layer chromatographic technique that separates porphyrins of the isocoproporphyrin series from other faecal porphyrins.
(9) A 62-year-old man with variegate porphyria is reported.
(10) Four patients with variegate porphyria (VP) were treated with repeated haem arginate infusions daily for 4 days and then weekly for 4 weeks.
(11) Hence, the differences in binding of the w+ gene probe in the variegating and variegation-suppressed strains reflect differences in chromosomal packaging rather than alterations in gene number.
(12) The lesions appeared brownish black, and most were variegated from tan to black.
(13) Thus, mice with variegating transgenes can provide molecular access to gene control mechanisms and to their consequences in development and disease.
(14) The results provide some indication as to the mechanism and timing for the general suppression of position-effect variegation by supernumerary heterochromatin in the genome.
(15) Beautiful and ancient plants, such as spreading bellflower , could become extinct in some places through the escape of variegated yellow archangel from gardens.
(16) Variegated endocrine cells were documented within this lining, using immunohistochemical and ultrastructural techniques.
(18) In white-mottled (wm) position-effect variegation mutants, a significant correlation was found between the extent of variegation (percentage of yellow cells) and riboflavin content (growth effect) of the MT.
(19) Four patients suffering from variegate prophyria were investigated during acute attacks.
(20) These changes include variegated hyperplasia of the pulp with epithelioid cells, mature eosinophilic granulocytes and immunoblasts occasionally resembling Hodgkin cells.