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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.
Lateral periodontal cysts radiographically present as a rounded, teardrop shape that are usually less than 10mm in size, presenting with a uni-cystic well-delineated radiolucency. Lesions are situated usually between the tooth lateral surface between the root apex and alveolar crest. [10] A prominent cortical boundary [11] is also usually observed.
The bacteria gains access to the periapical region of the tooth through deeper infection of the pulp, traveling through the roots. The resulting pulpal necrosis causes proliferation of epithelial rests of Malassez which release toxins at the apex of the tooth. The body's inflammatory response will attack the source of the toxins, leading to ...
Dental radiographs, commonly known as X-rays, are radiographs used to diagnose hidden dental structures, malignant or benign masses, bone loss, and cavities. A radiographic image is formed by a controlled burst of X-ray radiation which penetrates oral structures at different levels, depending on varying anatomical densities, before striking the ...
It exhibits as an "inverted pear-shaped radiolucency" on radiographs, or X-ray films. The globulomaxillary cyst often causes the roots of adjacent teeth to diverge. This cyst should not be confused with a nasopalatine cyst. The developmental origin has been disputed.
On radiographs, the adenomatoid odontogenic tumor presents as a radiolucency (dark area) around an unerupted tooth extending past the cementoenamel junction. It should be differentially diagnosed from a dentigerous cyst and the main difference is that the radiolucency in case of AOT extends apically beyond the cementoenamel junction.
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. Specialty: Endodontics [1] Complications
Dentigerous cysts may also involve odontomas, which by their nature also have tooth crowns. The radiolucency is generally well defined and well corticated. The radiolucency often have a sclerotic border indicating bony reaction, but a secondarily infected cyst may display ill-defined borders.