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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.
3) Enamel-dentine fracture Fracture involving both enamel and dentine without pulp exposure Tooth not tender with normal mobility and pulpal response Loss of enamel and dentine May need lip or cheek x-ray to locate tooth fragments or other materials If available, tooth fragment can be bonded back onto the tooth
An enamel fracture occurs when the outer layer of the tooth, known as enamel, is fractured without directly impacting the underlying tooth tissues of the dentine or pulp. [1] This phenomenon typically arises from hard, external forces impacting the tooth to induce enamel breakage. [ 1 ]
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.
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.
Sedative material placed over exposed or nearly exposed pulp 1) crown 2) root 3) restoration 4) pulp cap 5) pulp chamber Pulpal dentin junction. 1) outside tooth/enamel 2) dentin tubule 3) dentin 4) odontoblastic process 5) predentin 6) odontoblast 7) capillaries 8) fibroblasts 9) nerve 10) artery/vein 11) cell-rich zone 12) cell-poor zone 13) pulp chamber
Resorption of the root of the tooth, or root resorption, is the progressive loss of dentin and cementum by the action of odontoclasts. [4] Root resorption is a normal physiological process that occurs in the exfoliation of the primary dentition.
Tooth ankylosis refers to a fusion between a tooth and underlying bony support tissues. In some species, this is a normal process that occurs during the formation or maintenance of the dentition. [1] By contrast, in humans tooth ankylosis is pathological, whereby a fusion between alveolar bone and the cementum of a tooth occurs.
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