[Standardization of the keratinization-index by filter imprints]

Exfoliative-cytological procedures can demonstrate pathologic changes of the oral gingival epithelium. Filter-imprints of the gingiva of 31 male test persons were taken 6 times at intervals of 8 days under standardized conditions. The statistical evaluation of the "keratinization index" showed, that the extent of cornification of the healthy gingiva represents an individually different value for every test person. Variations in the course of 5 weeks were without statistical significance.