Plasma cells and lymphocytes in the healthy human gingiva

1.The seemingly healthy gingival tissues from 10 human cases of sudden accidental death were studied in tissue sections. 2. In the subepithelial connective tissue of the gingiva whidh otherwise has tode considered normal, plasma cell sggregations, though highly variable in size, number and density, were found to be constantly present. 3. In addition to plasma cells, lymphocytes were also found scattered singly in variable unmbers in both the connective tissue and the epithelium. 4. There was a tendency that the greater the degree of plasmocyte infiltration was, the more numerous were the lymphocytes which were found in the connective tissue and epithelium.