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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.
Commonly known as a dental cyst, the periapical cyst is the most common odontogenic cyst. ... the cyst is caused by pulpal necrosis secondary to dental caries or trauma.
The diagnosis of pulp necrosis can be based on the following observations: negative vitality, a periapical radiolucency, a grey tooth discoloration and even peri-apical lesions. [17] This altered translucency in the tooth is due to disruption and cutting off of the apical neurovascular blood supply.
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 ...
Dental abscess; Other names: Dentoalveolar abscess, periapical abscess, tooth abscess, root abscess: A decayed, broken down tooth, which has undergone pulpal necrosis.A periapical abscess (i.e. around the apex of the tooth root) has then formed and pus is draining into the mouth via an intraoral sinus ().
An abscess is a localized collection of pus which forms during an acute infection. The important difference between a periapical abscess and abscesses of the periodontium are that the latter do not arise from pulp necrosis. [12] Abscesses of the periodontium are categorized as gingival abscess, periodontal abscess and pericoronal abscess.
Condensing osteitis may resemble idiopathic osteosclerosis, however, associated teeth will have pulpitis or pulpal necrosis with condensing osteitis. [3] These features help differentiate idiopathic osteosclerosis from similar entities such as condensing osteitis, cemento-osseous dysplasia, hypercementosis, and cementoblastoma.
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 ...