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01-09-2007 | Original Article

Non-destructive visualisation of protective proteins in the in situ pellicle

Authors: Daniela Deimling, Christian Hannig, Wiebke Hoth-Hannig, Philipp Schmitz, Jürgen Schulte-Mönting, Matthias Hannig

Published in: Clinical Oral Investigations | Issue 3/2007

Abstract

Several salivary anti-microbial and buffering components are part of the acquired in vivo pellicle. The purpose of the present in situ study was to visualise these proteins within the in situ formed pellicle and to investigate their distribution with respect to pellicle formation time and intra-oral localisation. Bovine enamel slabs were fixed on individual splints. They were carried by 6 subjects buccally and palatally in the region of the upper first molar teeth over 30 and 120 min, respectively, for in situ pellicle formation. After intra-oral exposure, enamel specimens were processed for transmission electron microscopy. Secretory immunoglobulin A (sIgA), lactoferrin, lysozyme, carbonic anhydrase (CA) I and II were visualised successfully in the in situ pellicle layer by gold immuno-labelling. All components were found to be distributed randomly within all layers of the pellicle. Significantly higher amounts of the proteins were detected after 120 min of formation time. Furthermore, significantly more labelled lactoferrin and lysozyme were found on buccal surfaces compared with palatal sites. For CA I, CA II and sIgA, no significant influence of the localisation was detected. All investigated anti-bacterial and buffering proteins are distributed randomly in the in situ formed pellicle layer and thus could contribute to its protective properties as an early defence barrier.

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Title: Non-destructive visualisation of protective proteins in the in situ pellicle
Authors: Daniela Deimling
Christian Hannig
Wiebke Hoth-Hannig
Philipp Schmitz
Jürgen Schulte-Mönting
Matthias Hannig
Publication date: 01-09-2007
Publisher: Springer-Verlag
Published in: Clinical Oral Investigations / Issue 3/2007
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI: https://doi.org/10.1007/s00784-007-0112-5

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Non-destructive visualisation of protective proteins in the in situ pellicle

Abstract

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