What does a Cementocyte do?
What does a Cementocyte do?
Once these cells become trapped within the matrix of the cementum, they live on as cementocytes. Like osteocytes in bone, cementocytes are reactive cells and can secrete cementum to help keep the tooth stable within the socket (Junqueira and Carneiro, 2003).
How are Cementocytes formed?
During formation of cellular cementum, cementoblasts secrete a layer of unmineralized extracellular matrix (ECM), the cementoid. As cementoid deposition progresses, some cementoblasts are embedded in the ECM and become cementocytes.
What is the origin of Cementocytes?
Cementum is a mineralized tissue covering the tooth root that functions in tooth attachment and posteruptive adjustment of tooth position. During formation of the apically located cellular cementum, some cementoblasts become embedded in the cementoid matrix and become cementocytes.
What gives some teeth a yellow tone?
Dentin darkens with age, but yellow teeth typically means that your enamel has been stained by what you eat and drink. Coffee, tea and red wine have powerful pigments that attach to your enamel and alter the color of your teeth. Plaque buildup can also accumulate, leaving teeth dirty and yellow.
What is the function of circumferential fibers?
The circular or circumferential fibers are continuous around the neck of the tooth and resist gingival displacement….Gingival fiber group.
| Fiber group | Location of attachment | Function |
|---|---|---|
| Free gingival | Cervical tooth to free gingival | Resist gingival displacement |
Why do canaliculi face the PDL?
Since the cementum abuts the dentin on one surface, its only access to tissue fluid and the blood supply is toward the periodontal ligament. Therefore, most of the canaliculi are directed toward the cementum surface facing the periodontal ligament.
How is hypercementosis diagnosed?
Hypercementosis is a non-neoplastic condition characterised by excessive deposition of cementum on the roots of teeth. It may affect a single tooth or multiple teeth. The condition is asymptomatic and is detected on radiographic examination.
Why do old people’s teeth turn brown?
Aging: As you age, the outer layer of enamel on your teeth gets worn away exposing the yellow dentin. Your tooth dentin also grows as you age, which decreases the size of the pulp. The translucency of the tooth reduces, making it look darker. Genetics: Thicker and whiter enamel runs in some families.