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Pericoronitis. Pericoronitis associated with the lower right third molar (wisdom tooth). Pericoronitis is inflammation of the soft tissues surrounding the crown of a partially erupted tooth, [1] including the gingiva (gums) and the dental follicle. [2] The soft tissue covering a partially erupted tooth is known as an operculum, an area which ...
Tooth eruption is a process in tooth development in which the teeth enter the mouth and become visible. It is currently believed that the periodontal ligament plays an important role in tooth eruption. The first human teeth to appear, the deciduous (primary) teeth (also known as baby or milk teeth), erupt into the mouth from around 6 months ...
70-75% of the population. Impacted wisdom teeth is a condition where the third molars (wisdom teeth) are prevented from erupting into the mouth. [1] This can be caused by a physical barrier, such as other teeth, or when the tooth is angled away from a vertical position. [2] Completely unerupted wisdom teeth usually result in no symptoms ...
The third molar, commonly called wisdom tooth, is the most posterior of the three molars in each quadrant of the human dentition. The age at which wisdom teeth come through (erupt) is variable, [1] but this generally occurs between late teens and early twenties. [2] Most adults have four wisdom teeth, one in each of the four quadrants, but it ...
Dentigerous cyst is labeled at top right. A dentigerous cyst, also known as a follicular cyst, is an epithelial-lined developmental cyst formed by accumulation of fluid between the reduced enamel epithelium and the crown of an unerupted tooth. [2][3][4] It is formed when there is an alteration in the reduced enamel epithelium and encloses the ...
Dentistry. A periodontal abscess (also termed lateral abscess, [1] or parietal abscess), [1] is a localized collection of pus (i.e. an abscess) within the tissues of the periodontium. It is a type of dental abscess. A periodontal abscess occurs alongside a tooth, and is different from the more common [2] periapical abscess, which represents the ...
Hypodontia is defined as the developmental absence of one or more teeth excluding the third molars. It is one of the most common dental anomalies, and can have a negative impact on function, and also appearance. It rarely occurs in primary teeth (also known as deciduous, milk, first and baby teeth) and the most commonly affected are the adult ...
This leaves the tooth partially erupted into the mouth, and there frequently is a flap of gum (an operculum), overlying the tooth. Bacteria and food debris accumulate beneath the operculum, which is an area that is difficult to keep clean because it is hidden and far back in the mouth. The opposing upper wisdom tooth also tends to have sharp ...