Abstract
The distribution of dendritic cells in the oral and crevicular parts of the gingival epithelium of man was studied using the DOPA reaction, and osmium iodide and gold chloride impregnation. Melanocytes were demonstrated throughout the basal layers of the oral part of the gingival epithelium, but were found only infrequently in the crevicular epithelium, where they were restricted to the gingival crest. Dendritic cells which were not DOPA-reactive were found in the more superficial layers of the oral part of the gingival epithelium, and were present more frequently and at a more apical level in the crevicular epithelium than were the melanocytes.
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