Which type of epithelium is found in the junctional epithelium (JE)?

The junctional epithelium (JE) is a specialized type of epithelium that plays a critical role in the attachment of the gingiva to the tooth surface. It is primarily composed of non-keratinized stratified squamous epithelium. This type of epithelium is suitable for the junctional epithelium because it provides a level of flexibility and resilience while maintaining a protective barrier in an area that is subject to mechanical stress and constant exposure to oral fluids and bacteria.

Non-keratinized stratified squamous epithelium is characterized by multiple layers of cells, which allows for greater capacity to withstand wear and tear. The absence of keratin in this type indicates that it remains moist, which is essential in the oral environment where it interfaces with saliva and other fluids.

Other types of epithelial tissues listed do not match the specific requirements or characteristics of the junctional epithelium. For instance, keratinized stratified squamous epithelium provides a robust outer layer found in areas requiring more protection, like the skin, but is not suited for the soft tissue of the gum lines where adaptability and moisture are necessary. Simple columnar epithelium and transitional epitheli