Polarized light and scanning electron microscopic investigation of enamel hypoplasia in primary teeth

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Polarized light and scanning electron microscopic investigation of enamel hypoplasia in primary teeth

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Publication Article, peer reviewed scientific
Title Polarized light and scanning electron microscopic investigation of enamel hypoplasia in primary teeth
Author(s) Sabel, Nina ; Klingberg, Gunilla ; Dietz, Wolfram ; Nietzsche, Sandor ; Norén, Jörgen G
Date 2010
English abstract
BACKGROUND: Enamel hypoplasia is a developmental disturbance during enamel formation, defined as a macroscopic defect in the enamel, with a reduction of the enamel thickness with rounded, smooth borders. Information on the microstructural level is still limited, therefore further studies are of importance to better understand the mechanisms behind enamel hypoplasia. AIM: To study enamel hypoplasia in primary teeth by means of polarized light microscopy and scanning electron microscopy. METHODS: Nineteen primary teeth with enamel hypoplasia were examined in a polarized light microscope and in a scanning electron microscope. RESULTS: The cervical and incisal borders of the enamel hypoplasia had a rounded appearance, as the prisms in the rounded cervical area of the hypoplasia were bent. The rounded borders had a normal surface structure whereas the base of the defects appeared rough and porous. CONCLUSIONS: Morphological findings in this study indicate that the aetiological factor has a short duration and affects only certain ameloblasts. The bottom of the enamel hypoplasia is porous and constitutes possible pathways for bacteria into the dentin.
DOI http://dx.doi.org/10.1111/j.1365-263X.2009.01006.x (link to publisher's fulltext)
Host/Issue International Journal of Paediatric Dentitry;1
Volume 20
ISSN 0960-7439
Pages 31-6
Language eng (iso)
Subject(s) Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/9813 (link to this page)

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