Contributing causes include thin and fragile epithelium leading to incomplete removal, cyst extensions extending into cancellous bone, satellite cysts found in the wall, experience of the surgeon, formation of further new cysts from other remnants of the dental epithelium. With current treatment techniques the recurrence rate is around 2-3% but can be as high as 50%. Recurrence can occur as early as 5 years and as late as 40 years after removal. Recurrence is usually seen within 5 years of treatment. Early findings of recurrence can be easily treated with minor surgery and curretage. Any fragment of the cyst that is left behind has the potential to survive and grow. Therefore, the success of enucleation depends on how well the cyst is removed. Larger cysts have a higher rate of recurrence after enucleation as they are more difficult to remove. Pronto genie keratocysts are well known to recur in the posterior mandible. A substantial amount of odontogenic keratocysts also recur in the tooth-bearing area of the jaws, requiring attention from clinicians.The neoplastic nature of odontogenic keratocysts has been debated. Due to high recurrence rate, late detection when the cyst has grown very large and causation by tumour suppressor gene inactivation, some have classified OKCs as benign neoplasms. The best evidence to suggest that this type of cyst is not a neoplasm is that it responds very well to marsupialisation. See also
Cysts of the jaws

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Kuvan or Kuvan Darya is a dry riverbed of what once was a tributary of the Syr river in Central Asia. The area is located west of Kzyl-Orda. It is an area of archaeological interest and was once home to tigers whose range extensed to the reedy shores of the Aral Sea. The area includes unusual kurgan burial sites. In the late 19th century there was some flow along the tributary before it petered out in marshlands. == References ==