What is the histological structure of the gingiva?
The gingiva consists of an outer epithelial layer and an underlying connective tissue called the lamina propria. The epithelial layer can be either keratinized or non-keratinized stratified squamous epithelium. Keratinized parts include the attached gingiva and the marginal gingiva, while the non-keratinized part is the sulcular epithelium. The lamina propria contains collagen fibers, fibroblasts, blood vessels, and immune cells.