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  2. Periapical cyst - Wikipedia

    en.wikipedia.org/wiki/Periapical_cyst

    Secondary [clarification needed] symptoms of periapical cysts include inflammation and infection of the pulp causing dental caries. This infection is what causes necrosis of the pulp. [4] Larger cysts may cause bone expansion or displace roots. Discoloration of the affected tooth may also occur.

  3. Pulp necrosis - Wikipedia

    en.wikipedia.org/wiki/Pulp_necrosis

    This causes necrosis. [8] Necrosis is a histological term that means death of the pulp. [9] It does not occur suddenly unless there has been trauma. The pulp may be partially necrotic for some time. The area of cell death enlarges until the entire pulp is necrotic. Bacteria invade the pulp which causes the root canal system to become infected. [10]

  4. Periapical granuloma - Wikipedia

    en.wikipedia.org/wiki/Periapical_granuloma

    Periapical granuloma, [1] also sometimes referred to as a radicular granuloma or apical granuloma, is an inflammation at the tip of a dead (nonvital) tooth. It is a lesion or mass that typically starts out as an epithelial lined cyst, and undergoes an inward curvature that results in inflammation of granulation tissue at the root tips of a dead tooth.

  5. Periapical periodontitis - Wikipedia

    en.wikipedia.org/wiki/Periapical_periodontitis

    Periapical periodontitis; Other names: Apical periodontitis, periradicular periodontitis: Periapical dental radiograph showing chronic periapical periodontitis on the root of the left maxillary second premolar. Note large restoration present in the tooth, which will have undergone pulpal necrosis at some point before the development of this lesion.

  6. Cemento-osseous dysplasia - Wikipedia

    en.wikipedia.org/wiki/Cemento-osseous_dysplasia

    Other symptoms may include hypoesthesia, paresthesia, and discomfort. [3] In rare instances, patients may experience associated facial swelling with the presence or absence of pain due to concurrent infection. [4] Patients experiencing symptoms also tend to be older and have the periapical form of cemento-osseous dysplasia. [3]

  7. Healing of periapical lesions - Wikipedia

    en.wikipedia.org/wiki/Healing_of_periapical_lesions

    In 1890, W.D. Miller, considered the father of oral microbiology, was the first to associate pulpal disease with the presence of bacteria. [11] This was confirmed by Kakehashi, who, in 1965, proved that bacteria were the cause of pulpal and periradicular disease in studies using animal models; pulpal exposures were initiated in both normal and germ-free rats, and while no pathologic changes ...

  8. Phoenix abscess - Wikipedia

    en.wikipedia.org/wiki/Phoenix_abscess

    A phoenix abscess is an acute exacerbation of a chronic periapical lesion. It is a dental abscess that can occur immediately following root canal treatment. Another cause is due to untreated necrotic pulp (chronic apical periodontitis). [1] It is also the result of inadequate debridement during the endodontic procedure.

  9. Idiopathic osteosclerosis - Wikipedia

    en.wikipedia.org/wiki/Idiopathic_osteosclerosis

    Idiopathic osteosclerosis, also known as enostosis or dense bone island, is a condition which may be found around the roots of a tooth, usually a premolar or molar. [2] It is usually painless and found during routine radiographs as an amorphous radiopaque (light) area around a tooth.