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.
Where does junctional epithelium attach?
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.
What attaches gingival epithelium to tooth?
The gingival epithelium consists of the oral gingival epithelium (OGE), oral sulcular epithelium (OSE), and junctional epithelium (JE) (Fig. 1A, B). Among them, the JE attaches to the tooth surface via hemidesmosomes , which forms the front-line of defense against periodontal bacterial infection [4], [5].
What is epithelial tissue?
Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs , and are the major tissue in glands. They perform a variety of functions that include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.
Where is the junctional epithelium attached in a healthy sulcus?
The junctional epithelium is the epithelium located at the base of the gingival sulcus . The gingival sulcus’ probing depth is measured with a calibrated periodontal probe. In a healthy situation, the probe is gently inserted, slides past the sulcular epithelium (SE), and stops at the epithelial attachment.
What are the two types of gingiva?
- Alveolar mucosa – The area of tissue beyond the mucogingival junction. ...
- Attached gingiva – This tissue is adjacent to the free gingiva and is keratinized and firmly attached to the bone structure.
What is the difference between free and attached gingiva?
The attached gingiva is firmly bound to the periosteum and to the dentition. The free gingiva is that portion of the unattached gingiva around the cervical region of each tooth; the interdental gingiva (papilla) fills the space between them.
What is the length of junctional epithelium?
The junctional epithelium (JE) adjacent to the tooth is that part of the gingiva which attaches the connective tissue to the tooth surface (Fig. 2.14). It forms a band 2—3 mm wide around the tooth, and is approximately 15—30 cells thick coronally and tapers to a single cell apically.
What tooth structure is an example of epithelial tissue?
The gingiva is the highly keratinized epithelium and underlying connective tissue lamina propria that surrounds the teeth. The extensive interdigitation with the lamina propria increases the surface area for epithelial attachment to the connective tissue.
What is the Crevicular epithelium?
The stratified squamous epithelium lining the inner aspect of the soft tissue wall of the gingival sulcus. Synonym: sulcular epithelium.
What are the 4 types of epithelial tissue?
The four major classes of simple epithelium are: 1) simple squamous; 2) simple cuboidal; 3) simple columnar; and 4) pseudostratified.
What is the mean of epithelial?
1 : a membranous cellular tissue that covers a free surface or lines a tube or cavity of an animal body and serves especially to enclose and protect the other parts of the body, to produce secretions and excretions, and to function in assimilation.
How do you classify epithelial cells?
Classification of Epithelial Tissues. Epithelial tissues are classified according to the shape of the cells and number of the cell layers formed ((Figure)). Cell shapes can be squamous (flattened and thin), cuboidal (boxy, as wide as it is tall), or columnar (rectangular, taller than it is wide).
What is clinical attachment loss?
Clinical attachment loss which is also known as CAL, is the presence of periodontal disease . Periodontal disease, or gum disease, is a set of inflammatory conditions which affect the tissues that surround the teeth. In the early stage, the condition is called gingivitis.
What is oral epithelium?
The oral mucosal epithelium is a barrier that separates the underlying tissues from their environment . It consists of two layers, the surface stratified squamous epithelium and the deeper lamina propria.
Where is epithelial attachment located?
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.
