Scanning electron microscopic observation of the ciliated epithelia in the odontogenic maxillary sinusitis.

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It has been said that chronicity of odontogenic maxillary sinusitis induces changes in the maxillary sinus mucosa due to causative organism and develops attributively to retention caused by decreased excretion of inflammatory products. It has been considered that not only the pathogenicity of the microorganism but also disturbed ciliary function of the sinus mucosa are largely responsible for the above fact. The authors investigated micro-structures in the surface of the sinus mucosa by centering on the morphological changes of the ciliated structure in the samples obtained by a radical operation for odontogenic maxillary sinusitis, and obtained some findings. Observation methods: The samples for observation were first washed enough with a phsiological saline solution as soon as possible after collection and divided into two, scanning electron microscopic samples and light microcopic ones. The formers were fixed in 2.5% glutaraldehyde for 6 hours followed by fixation with O8O4 for further 3 hours, while the latters were fixed in a 10% neutral formalin solution. Subsequently, for the scanning electron microscope using evaporated with platinum according to the usual method. On the other hand, the light microscopic samples were embedded in paraffin, prepared to thin section, stained with H-E and examined light microscopically. Results of observation: A pathological change, such as so called infiltrative type, fibrous type or mixed type, were noted in the mucosa of the chronic maxillary sinusitis. Even though the surface appears to be macroscopically smooth, the microstructural surface had lot of unevenness, and lesions differed depending on areas of the same region. Of the areas, those with relatively slight lesion exhibited images similar to the normal structural surface of sinus mucosa, and the ciliated cells were clearly seen. Non-ciliated cells were noted dispersedly among the ciliated cells. However, in the areas severe lesion inflammatory by-products appeared frequently; the ciliated cells decreased in number; short cilia, disturbance of directinity and erectness of cilia, and some mutual ciliary fusion was noted. In addition to increase of non-ciliated cells and atypical cells were seen. An interpretation was that such morpathological abnormalities in ciliated structure suggest a disturbed ciliary function for the chronic maxillary sinusitis.
社団法人日本口腔外科学会の論文

Scanning electron microscopic observation of the ciliated epithelia in the odontogenic maxillary sinusitis.

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