Items tagged “dental”

115 results found
Article

Ameloblastoma

Ameloblastomas are locally aggressive benign tumors that arise from the mandible, or, less commonly, from the maxilla. They usually present as a slowly but continuously growing hard painless lesion near the angle of the mandible in the 3rd to 5th decades of life, which can be severely disfigurin...
Article

Calcifying epithelial odontogenic tumor

Calcifying epithelial odontogenic tumor (CEOT), also known as a Pindborg tumor, (previously has been called adenoid adamintoblastoma, unusual ameloblastoma and cystic odontoma) is typically located in the premolar and molar region of the mandible, although up to a third are found in the maxilla....
Article

Cementoblastoma

Cementoblastomas are one of many mandibular lesions. It is a rare tumor of the cementum, with only approximately 100 cases reported. The key to diagnosis, both radiologically and histologically, is an attachment to the tooth root.  Terminology Cementoblastomas have been previously described in...
Article

Cherubism

Cherubism has historically been considered a variant of fibrous dysplasia, but is likely a distinct entity.  Epidemiology Cherubism is a rare disorder and the precise incidence is unknown. It is inherited in an autosomal dominant pattern 2 and has variable penetrance, with onset in early child...
Article

Dentigerous cyst

Dentigerous cysts, also called follicular cysts, are slow-growing benign and non-inflammatory odontogenic cysts that are thought to be developmental in origin. On imaging, they usually present as a well-defined and unilocular radiolucency surrounding the crown of an unerupted or impacted tooth ...
Article

Radiolucent lesions of the mandible (differential)

Lucent lesions of the mandible are not uncommon and may be the result of odontogenic or non-odontogenic processes. Lucency may be conferred by a cystic process (e.g. periapical cyst) or a lytic process (e.g. mandibular metastases). Pathology Etiology Odontogenic periapical (radicular) cyst (...
Article

Mandibular lesions

Mandibular lesions are myriad and common. The presence of teeth results in lesions that are specific to the mandible (and maxilla) and a useful classification that defines them as odontogenic or non-odontogenic. While it may often not be possible to make a diagnosis on imaging alone, this classi...
Article

Odontogenic keratocyst

Odontogenic keratocysts (OKC), previously known as keratocystic odontogenic tumors (KCOT or KOT), are rare benign cystic lesions involving the mandible or maxilla and are believed to arise from dental lamina. Whether these lesions are developmental or neoplastic is controversial, with the 4th ed...
Article

Odontogenic myxoma

Odontogenic myxomas are rare tumors that involve the mandible or maxilla and account for 3-6% of odontogenic tumors 2. Epidemiology Typically seen in the 2nd to 3rd decades of life (slightly earlier than ameloblastomas). They are usually not painful. Pathology Arises from mesenchymal odontog...
Article

Odontoma

Odontomas are one of the most common mandibular lesions encountered and the most common odontogenic tumors of the mandible. They account for up to two-thirds of all such tumors; the next most common are ameloblastomas, making up the majority of the remaining one-third. Epidemiology They can oc...
Article

Periapical cyst

Periapical cysts, also known as radicular cysts, are the most frequent cystic lesion related to teeth (see mandibular lesions) and result from infection of the tooth. On imaging, they generally appear as a round- or pear-shaped, unilocular, lucent lesion in the periapical region, usually measuri...
Article

Residual cyst

Residual cysts are inflammatory odontogenic cysts that develop following dental extraction. It is most frequently due to growth from a remnant of a radicular/periapical cyst 1. They occur more often in the maxilla 2.
Article

Sialolithiasis

Sialolithiasis refers to the formation of calculi (sialoliths) inside the ducts or parenchyma of salivary glands and most commonly occurs in the submandibular glands and their ducts. Epidemiology Sialolithiasis is the most common disease of salivary glands, accounting for approximately 50% of ...
Article

Stafne bone cavity

A Stafne bone cavity is a cortical defect near the angle of the mandible below the mandibular canal. It is usually an incidental finding and represents a depression in the medial aspect of the mandible filled by part of the submandibular gland or adjacent fat.  Terminology A Stafne bone cavity...
Article

WHO classification of odontogenic and maxillofacial bone tumors

The WHO classification of odontogenic and maxillofacial bone tumors, last published in 2017, is a subset of the WHO classification of head and neck tumors (4th edition), which lays out a histological classification system for neoplasms and other tumors related to the odontogenic apparatus. Clas...
Case

Fractured mandible

  Diagnosis certain
Frank Gaillard
Published 19 May 2008
72% complete
X-ray
Case

Ameloblastoma - maxilla

  Diagnosis certain
Frank Gaillard
Published 07 Jul 2008
92% complete
CT
Case

Dentigerous cyst

  Diagnosis almost certain
Frank Gaillard
Published 13 Sep 2008
65% complete
CT
Case

Periapical abscess

  Diagnosis almost certain
Frank Gaillard
Published 28 Oct 2008
39% complete
CT
Case

Tongue stud

  Diagnosis not applicable
Frank Gaillard
Published 01 Jan 2009
59% complete
CT

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