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odontogenic cysts
Monday 25 March 2019
| WKP | PO |
Definition : Odontogenic cyst are a group of jaw cysts that are formed from tissues involved in odontogenesis (tooth development).
Odontogenic cysts are closed sacs, and have a distinct membrane derived from rests of odontogenic epithelium. It may contain air, fluids, or semi-solid material.
Intra-bony cysts are most common in the jaws, because the mandible and maxilla are the only bones with epithelial components.
That odontogenic epithelium is critical in normal tooth development. However, epithelial rests may be the origin for the cyst lining later. Not all oral cysts are odontogenic cyst. For example, mucous cyst of the oral mucosa and nasolabial duct cyst are not of odontogenic origin.
In addition, there are several conditions with so-called (radiographic) ’pseudocystic appearance’ in jaws; ranging from anatomic variants such as Stafne static bone cyst, to the aggressive aneurysmal bone cyst.
Types
–* inflammatory odontogenic cysts
–* developmental odontogenic cysts
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- dentigerous cyst
- lateral periodontal cyst
- botryoid odontogenic cyst
- glandular odontogenic cyst
- odontogenic keratocyst (keratocystic odontogenic tumour )
- gingival cyst
Diagnosis of odontogenic cysts
isolated squamous cell epithelium
- odontogneic keratocyst / Gorlin syndrome
glands ?
- glandular odontogenic cysts
calcifications / psammomas ?
- calcifying odontogenic cyst
See also
Open references
