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These fractures are often characterised by irregular breaks on the biting surface of the tooth, in contrast to the smoother surfaces associated with typical tooth degradation. [1] Enamel fractures can vary in severity, ranging from minor cosmetic issues to more significant structural problems. [1] An enamel fracture typically doesn't cause any ...
Enamel-dentine fracture is a complete fracture of the tooth enamel and dentine without the exposure of the pulp. Pulp sensibility testing is recommended to confirm pulpal health. Treatment depends on how close the fracture is in relation to the pulp.
However, they have been noted to be an important potential source of enamel fractures that arise after extended use or overloading. [8] It appears that, although enamel easily starts to form the fracture defects of enamel tufts, they then enable enamel to resist the further progress of these fractures, ultimately preventing mechanical failure. [8]
In extreme cases (such as a vertical fracture), tooth may need to be extracted 6–8 weeks: clinical and radiographic examination 1 year: clinical and radiographic examination 6) Crown-root fracture with pulp Involvement Fracture involving enamel, dentine and cementum with pulp exposure Tender tooth with mobile crown fragment
They are occasionally called caveated enamel fractures. It is a micro-fracture or superficial break in a tooth's enamel layer that does not go into the dentin underneath. Usually, trauma—like a direct blow to the tooth—or stress from too much pressure—like bruxism—causes these infractions.
It is suggested that these lesions are caused by forces placed on the teeth during biting, eating, chewing and grinding; the enamel, especially at the cementoenamel junction (CEJ), undergoes large amounts of stress, causing micro fractures and tooth tissue loss. Abfraction appears to be a modern condition, with examples of non-carious cervical ...
Another consideration is unsupported tooth structure. When preparing the tooth to receive a restoration, unsupported enamel is removed to allow for a more predictable restoration. While enamel is the hardest substance in the human body, it is particularly brittle, and unsupported enamel fractures easily.
It has been proposed that the DEJ is crucial in preventing the progression of cracks from enamel to dentin and averting additional severe tooth fractures The dentino-enamel junction (DEJ) is an intricate biomechanical interface that forms the boundary between the highly mineralised enamel and the collagen-rich dentin.
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