1,721,197 research outputs found
Imaging of ameloblastomas: a pictorial review
No full textOBJECTIVES: Ameloblastomas are the most common clinically significant odontogenic tumor constituting 18% of all odontogenic tumors. Ameloblastomas are a rare, benign, slow-growing but locally invasive odontogenic neoplasm involving the mandible and the maxilla.
The aim of the present article was to review and depict the main radiological features of ameloblastomas.
MATERIALS AND METHODS: A review of articles published between January 2000 and October 2020 using Medline and the MeSH term “ameloblastoma” in combination with the following terms “imaging” “radiology”, “panoramic radiograph”, and “computed tomography”, was performed.
RESULTS: The most frequently adopted radiological imaging techniques for the study of ameloblastomas are panoramic radiograph, CBCT and computed tomography.
On radiographs, CBCTs and CTs, ameloblastomas are radiolucent and either unilocular or multilocular.
Panoramic radiography allows for a preliminary assessment of the location, size, shape, margins and extension of the lesions. It allows for a kind of “screening” X-ray examination and remains the first choice in the initial evaluation of tumors of the jaws
CONCLUSIONS: Dental practitioners should be aware of the radiological features of ameloblastomas. CT and CBCT scans play an important role in the diagnosis and treatment planning of such lesions, although panoramic radiograph still represents a valid imaging technique.
CLINICAL SIGNIFICANCE: It may not be easy to differentiate between unilocular ameloblastomas from other odontogenic lesions. Histopathological findings are still necessary to obtain a definitive diagnosis
Peculiar case of orthokeratinised odontogenic cyst: A peripheral counterpart of the intraosseous entity?
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Lateral Periodontal Cyst in a 10-year-old Child
No full textThe lateral periodontal cyst (LPC) is a relatively rare odontogenic non-inflammatory cyst that arises in the alveolar process in close proximity to the roots of vital teeth.LPC is considered to be an odontogenic cyst of developmental origin that arise in close proximity to the periodontal space of teeth, with the exclusion of an inflammatory pathogenesis.LPC is most frequently observed in the premolar region of the mandible, followed by the maxillary incisor region. It is preferentially diagnosed in individuals aged between 40 and 70 years, although it may be occasionally diagnosed in patients outside this age range.LPC is usually asymptomatic and it is usually found by a combination of a clinical finding of a gingival swelling in the facial or lingual aspect of a tooth and of a radiographic finding. The involved teeth are usually vital. The radiographic feature of LPC is a well circumscribed ovoid-round radiolucent area, usually with a less than 1 cm diameter.The aim of the present article is to present an unusual case of LPC in the molar region in a 10-year-old child, and to discuss its diagnosis and management
Simple bone cyst of the mandible
No full textSimple bone cysts (SBCs) are nonneoplastic intraosseous cavities without an epithelial lining, surrounded by bony walls and either empty or containing liquid and/or connective tissue: they were
first described in 1929 as a distinct entity of disease. The characteristic that distinguishes SBCs
from true cysts is the absence of epithelial lining, that allow us to regard SBCs as pseudocysts.
In the literature, SBCs have been referred to as solitary bone cysts, idiopathic bone cysts, unicameral cysts, traumatic bone cysts, hemorrhagic bone cysts, primary bone cysts, and extravasation cysts.
The pathogenesis of SBC remains uncertains. Radiographically, SBCs usually present as isolated unilocular radiolucencies with well-defined borders. When SBC extends to the interdental
bone, the characteristic radiographic “scalloping effect” can be observed. The differential diagnosis includes apical periodontitis, odontogenic keratocyst, central giant cell granuloma, ameloblastoma, odontogenic myxoma, and central and neurogenic neoplasms.
Surgery (curettage) is the gold standard treatment as it allows both diagnosis and treatment
by generation of a blood clot in the vacant cavity of SBCs: bone usually regenerates progressively
within 6–12 months. Recurrence rate is almost negligible.
The aim of the present article is to present and discuss the diagnosis and management of a
case of SBC
Symphyseal Mandibular Fractures Associated With Bicondylar Fractures: A Retrospective Analysis
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