Tooth cementum

The cells of cementum are the entrapped cementoblasts, the cementocytes. Each cementocyte lies in its lacuna, similar to the pattern noted in bone. These lacunae also have canaliculi or canals. Unlike those in bone, however, these canals in cementum do not contain nerves, nor do they radiate outward. Instead, the canals are oriented toward the periodontal ligament and contain cementocytic processes that exist to diffuse nutrients from the ligament because it is vascularized.

After the apposition of cementum in layers, the cementoblasts that do not become entrapped in cementum line up along the cemental surface along the length of the outer covering of the periodontal ligament. These cementoblasts can form subsequent layers of cementum if the tooth is injured.

Sharpey fibers are part of the principal collagenous fibers of the periodontal ligament embedded in the cementum and alveolar bone to attach the tooth to the alveolus.

If cementum can be observed on teeth, it can imply that the roots are exposed, showing that the clinical crown (the exposed part of the tooth) is bigger than the anatomical crown (the surface of the tooth covered by enamel). This is often due to gingival recession and may be an indication of Periodontal disease .

Considering this phenomenon Journal of odontology is accepting research articles from the esteemed researchers on the relevant areas of research in the coming 2020 upcoming issue.

https://www.longdom.org/submissions/odontology.html

Best Regards

Ruth T Casey

Senior Journal coordinator

Journal of Odontology

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