gingival epithelium In humans: 15% orthokeratinized, 75% parakeratinized, 10% non-keratinized; diurnal; decreased keratinization with age. Note that in FMA this is classified as keratinized squamous - this perhaps refers to the epithelium of the attached or free gingiva NCIT:C49239 epithelial tissue of gingiva gingiva epithelial tissue MA:0001576 UMLS:C1179154 uberon epithelium of gingiva A stratified squamous epithelium consisting of a basal layer; it is keratinized or parakeratinized[BTO]. BTO:0004998 FMA:62423 gingiva epithelium UBERON:0001949 oral epithelium digestive tract epithelium stratified squamous epithelium