What does the junctional epithelium attach to?

Generally, the epithelium, called the junctional epithelium (JE), is directly attached to the tooth surface (enamel) and has a defensive role against continuous bacterial infection.

Which type of cellular junction serves to attach the junctional epithelium to the tooth surface?

The junctional epithelium (JE) is attached to the tooth surface by hemidesmosomes, which constitutes the front-line defense against periodontal bacterial infection.

Where does the junctional epithelium attach to the tooth?

The junctional epithelium is attached to the tooth by the epithelial attachment and is about 1 mm in width. The junctional epithelium attaches to the tooth’s surface on either the enamel, the cementum, or the dentin and is derived from the epithelium of the tooth’s enamel during the development of the teeth.

What forms the epithelial attachment of tooth?

Epithelial attachment refers to the mechanism of attachment of the junctional epithelium to a tooth or dental implant, i.e., hemidesmosomes. The cells of the epithelium at this attachment point are non-keratinized and form a collar around the tooth around the cemento-enamel junction.

How does long junctional epithelium form?

Connective tissue is destroyed during periodontal disease, and the junctional epithelium therefore extends until it reaches intact connective tissue that provides the signal to stop its migration, forming a long junctional epithelium.

Is junctional epithelium attached to cementum?

Long junctional epithelium created experimentally attaches to the cementum surface by hemidesmosomes and basal lamina. The peri-implant epithelium differs in proliferation and in adhesive structure from the normal junctional epithelium.

What is a long junctional epithelium?

Junctional epithelium: This involves a single layer or multiple layers of non-keratinized cells that adhere to the tooth surface at the base of the gingival crevice.

How long does it take for the long junctional epithelium to form?

Coronal migration of the epithelium from that level accounted for most of the lengthening of the junctional epithelium observed in 3 weeks. During the balance of the experimental period the junctional epithelium did not change in length significantly.

What is long junctional epithelium?

Where is the junctional epithelium?

gingival sulcus
The junctional epithelium (JE) is the epithelium that is located at the base of the gingival sulcus. A calibrated periodontal probe is used to measure the probing depth of the gingival sulcus.

Why is junctional epithelium important?

The junctional epithelium is located at a strategically important interface between the gingival sulcus, populated with bacteria, and the periodontal soft and mineralized connective tissues that need protection from becoming exposed to bacteria and their products.

What is the length of junctional epithelium?

The length of the junctional epithelium ranges from 0.25 to 1.35 mm (Fig. 3.17). The junctional epithelium is formed by the confluence of the oral epithelium and the reduced enamel epithelium during tooth eruption.