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Acquired Organic Integuments of Human Enamel: A Comparison of Analytical Studies with Optical, Phase-Contrast and Electron Microscope Examinations

Acquired Organic Integuments of Human Enamel: A Comparison of Analytical Studies with Optical,... Caries Res. 2 ; 294— 305 (1968) Royal D ental H ospital o f London School o f D ental S urgery, Leicester Square, London Acquired Organic Integuments of Human Enamel : A Comparison of Analytical Studies with Optical, Phase-Contrast and Electron Microscope Examinations W .G . A rmstrong a nd A .F. H ayward INTRODUCTION Previous communications [Armstrong, 1966, 1967] have reported the re­ sults o f quantitative analyses on the organic films which arc acquired post- eruptivcly on human tooth enamel surfaces. These intcgumcntal structures were shown by M eckel [1965] to consist o f a continuum o f a sub-surface cuticle zone, overlaid by an ultrathin surface cuticle on the enamel surface, in turn covered by a thicker pellicle layer. Techniques for the collection o f ‘pellicles’ remove all the attached underlying structures and any analyses o f ‘pellicle’ will therefore include them. Hydrolysates o f the acquired organic integuments (pellicle) invariably contained muramic acid - an amino sugar derivative specific to bacterial cell walls, but not found in animal proteins [Armstrong, 1967]. Its appear­ ance in the hydrolysates indicated the presence o f bacterial components in the structures analysed. This was confirmed by an examination http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Caries Research Karger

Acquired Organic Integuments of Human Enamel: A Comparison of Analytical Studies with Optical, Phase-Contrast and Electron Microscope Examinations

Armstrong, W.G.; Hayward, A.F.
Caries Research , Volume 2 (4): 12 – Jan 1, 1968
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Publisher
Karger
Copyright
© 1968 S. Karger AG, Basel
ISSN
0008-6568
eISSN
1421-976X
DOI
10.1159/000259568
Publisher site
See Article on Publisher Site

Abstract

Caries Res. 2 ; 294— 305 (1968) Royal D ental H ospital o f London School o f D ental S urgery, Leicester Square, London Acquired Organic Integuments of Human Enamel : A Comparison of Analytical Studies with Optical, Phase-Contrast and Electron Microscope Examinations W .G . A rmstrong a nd A .F. H ayward INTRODUCTION Previous communications [Armstrong, 1966, 1967] have reported the re­ sults o f quantitative analyses on the organic films which arc acquired post- eruptivcly on human tooth enamel surfaces. These intcgumcntal structures were shown by M eckel [1965] to consist o f a continuum o f a sub-surface cuticle zone, overlaid by an ultrathin surface cuticle on the enamel surface, in turn covered by a thicker pellicle layer. Techniques for the collection o f ‘pellicles’ remove all the attached underlying structures and any analyses o f ‘pellicle’ will therefore include them. Hydrolysates o f the acquired organic integuments (pellicle) invariably contained muramic acid - an amino sugar derivative specific to bacterial cell walls, but not found in animal proteins [Armstrong, 1967]. Its appear­ ance in the hydrolysates indicated the presence o f bacterial components in the structures analysed. This was confirmed by an examination

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Caries Research – Karger

Published: Jan 1, 1968

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