Publication: Regional differences in cell surface patterns in normal human sulcular epithelium
Authors
Sánchez-Quevedo, M. C. ; Moreu, G. ; Campos, Antonio ; García, J. M. ; González-Jaranay, M.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
Studies with scanning electron microscopy in
the normal human sulcular epithelium are scarce, and no
precise information exists about cell surface patterns
along the epithelium, the frequencies of these patterns,
or possible regional differences within the mouth. In five
periodontal biopsy specimens each from the anterior and
posterior region of the mouth, we observed three cell
patterns on the basis of the overall appearance of
morphological surface markers in the coronal and apical
zones of sulcular epithelium: microvilli; microplicae;
and pits. The percentage of keratinocytes showing the
microvillous pattern in the surface of apical sulcular
epithelium of the posterior region of the mouth was
significantly higher than in the anterior region. We posit
that the presente, in the bottom of the normal sulcular
epithelium in the posterior region of the mouth, of
mainly microvillous keratinocytes (the most undifferentiated
and least desquamative type of
keratinocyte, and thus the most vulnerable to bacterial
colonization) can be associated with observations of
longitudinal clinical studies of periodontal disease,
which suggest that more severe clinical findings are
found in the region of the molars.
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