Microbeam electron diffraction and lattice fringe studies of defect structures in enamel apatites
A microbeam diffraction method in transmission electron microscopy has been applied to lattice structural studies of human and shark enamel apatite crystals. The technique allows diffraction patterns to be obtained from very small regions of the specimen (40 nm in diameter) and transfers minimal ene...
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| Veröffentlicht in: | Calcified tissue international 1985-11, Vol.37 (6), p.651-658 |
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| container_title | Calcified tissue international |
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| creator | LEE, D. D LEGEROS, R. Z |
| description | A microbeam diffraction method in transmission electron microscopy has been applied to lattice structural studies of human and shark enamel apatite crystals. The technique allows diffraction patterns to be obtained from very small regions of the specimen (40 nm in diameter) and transfers minimal energy to the sample during analysis. The presence of crystal defects, nonisolated dislocations with the dislocation line positioned perpendicular to the 100-type planes, was observed in the central part of the crystals. Further experiments with acid-etching of crystals containing such defects showed an initial preferential dissolution at the site of these atomic imperfections. The relative abundance of the crystal defects was approximately the same in both human enamel and shark enameloid. |
| doi_str_mv | 10.1007/bf02554925 |
| format | Article |
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The relative abundance of the crystal defects was approximately the same in both human enamel and shark enameloid.</description><subject>Animals</subject><subject>Apatites</subject><subject>Applied sciences</subject><subject>Crystallization</subject><subject>Dental Enamel - ultrastructure</subject><subject>Exact sciences and technology</subject><subject>Humans</subject><subject>Incisor</subject><subject>Microscopy, Electron - methods</subject><subject>Other techniques and industries</subject><subject>Sharks</subject><subject>Solubility</subject><subject>Species Specificity</subject><subject>X-Ray Diffraction - methods</subject><issn>0171-967X</issn><issn>1432-0827</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1985</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo9kM1LAzEQxYMotVYv3oUcxIOwmu_sHrVYFSpeFLwt2exEIvtRk-zB_95Ia08zvPebB_MQOqfkhhKibxtHmJSiYvIAzangrCAl04doTqimRaX0xzE6ifGLECqUUjM04xXXsqJzZF68DWMDpsfQgU1hHHDrnQvGJp93M7S4Myl5C9gFP3wCjmlqPUQ8OtyCyzdZCZNNU8iiHzAMpocOm41JPkE8RUfOdBHOdnOB3lcPb8unYv36-Ly8WxeWa50Kya0qlRFCNlRZp3glWsEMdS0BxgQXoInmQIVgjdSkqVgplTKKSuckKR1foKtt7iaM3xPEVPc-Wug6M8A4xVorRRQVOoPXWzA_HmMAV2-C7034qSmp__qs71f_fWb4Ypc6NT20e3RXYPYvd76J1nS5t8H6uMdKwkrCBf8FquJ8oQ</recordid><startdate>198511</startdate><enddate>198511</enddate><creator>LEE, D. 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The presence of crystal defects, nonisolated dislocations with the dislocation line positioned perpendicular to the 100-type planes, was observed in the central part of the crystals. Further experiments with acid-etching of crystals containing such defects showed an initial preferential dissolution at the site of these atomic imperfections. The relative abundance of the crystal defects was approximately the same in both human enamel and shark enameloid.</abstract><cop>New York, NY</cop><pub>Springer-Verlag</pub><pmid>3937591</pmid><doi>10.1007/bf02554925</doi><tpages>8</tpages></addata></record> |
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| ispartof | Calcified tissue international, 1985-11, Vol.37 (6), p.651-658 |
| issn | 0171-967X 1432-0827 |
| language | eng |
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| source | MEDLINE; SpringerLink Journals - AutoHoldings |
| subjects | Animals Apatites Applied sciences Crystallization Dental Enamel - ultrastructure Exact sciences and technology Humans Incisor Microscopy, Electron - methods Other techniques and industries Sharks Solubility Species Specificity X-Ray Diffraction - methods |
| title | Microbeam electron diffraction and lattice fringe studies of defect structures in enamel apatites |
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