Odontogenic cyst

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 cysts. 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. I. Cysts of the jaws A. Epithelial-lined cysts

1. Developmental origin (a) Odontogenic i. Gingival cyst of infants ii. Odontogenic keratocyst iii. Dentigerous cyst iv. Eruption cyst v. Gingival cyst of adults vi. Developmental lateral periodontal cyst vii. Botryoid odontogenic cyst viii. Glandular odontogenic cyst ix. Calcifying odontogenic cyst (b) Non-odontogenic i. Midpalatal raphé cyst of infants ii. Nasopalatine duct cyst iii. Nasolabial cyst
2. Inflammatory origin i. Radicular cyst, apical and lateral ii. Residual cyst iii. Paradental cyst and juvenile paradental cyst iv. Inflammatory collateral cyst B. Non-epithelial-lined cysts
3. Solitary bone cyst
4. Aneurysmal bone cyst II. Cysts associated with the maxillary antrum
5. Mucocele
6. Retention cyst
7. Pseudocyst
8. Postoperative maxillary cyst III. Cysts of the soft tissues of the mouth, face and neck
9. Dermoid and epidermoid cysts
10. Lymphoepithelial (branchial) cyst
11. Thyroglossal duct cyst
12. Anterior median lingual cyst (intralingual cyst of foregut origin)
13. Oral cysts with gastric or intestinal epithelium (oral alimentary tract cyst)
14. Cystic hygroma
15. Nasopharyngeal cyst