Morphological studies using a scanning electron microscope (SEM) were carried out to clarify the relationship between the kind of the adhesive plasters and their desquamation. Eleven kinds of adhesive plasters and vinyl tape were placed on the human brachial skin for 3, 12 and 24 hr respectively, and then removed the plasters and the tape from the skin surface into observation under the SEM. The results obtained by SEM analysis were as follows.
1) SEM observation enabled us to identify clearly squamous cells from the epidermis peeled by the plasters and the tape.
2) The density and configuration of removed squamous epithelial cells, which were attached to the surface of the plasters, varied considerably by using different adhesive plasters as well as by the duration of pasting.
3) Paper van and elastpore had a powerful adhesion and resulted in removing a few layers of squamous epithelial cells, while vinyl tape had a weak adhesion and some areas of the skin were not exfoliated.
4) In all plasters used, a small amount of squamous cells were removed after 3 hrs of pasting, but removed cells increased with the longer duration of pasting.
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