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Table IV
Clinical and radiological features of keratinized odontogenic cysts [1,2,7].
| Clinical features | Radiological features | |
|---|---|---|
| Odontogenic keratocyst | 3rd most frequent cyst of the jaws. Strong predilection for posterior mandibular area. Recurrence rate is 20 to 30%. Syndromic cases are generally multiple and occur at a young age | Unilocular or multilocular well-defined radiolucency, sometimes associated with an unerupted tooth. The potential growth of these lesions may cause large cyst and bone destruction (Fig. 4B and C) |
| Orthokeratinized odontogenic cyst | Strong predilection for posterior mandibular area, sometimes associated with a non-erupted tooth. Recurrence are rare (< 5%). No association with Gorlin syndrome. | Unilocular well-defined radiolucency, mostly associated with an impacted tooth. Multilocular cases are rare (Fig. 4A) |
| Gingival cyst of the newborn | Multiple small white nodules on edentulous alveolar ridge occuring in 90% of the neonates (< 3 months) | Absence of radiological manifestations |
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