A case series of odontogenic keratocysts from a New Zealand population over a 20-year period
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Purpose: To report on the clinicopathological aspects of odontogenic keratocysts (OKC)/keratocystic odontogenic tumours (KCOT) presenting in a New Zealand population. Methods: Information on defined areas--including age at presentation, gender, anatomical sub-location, presenting features, histological subtype and the recurrence pattern--were extracted from the histopathological data available in the Oral Pathology database of the University of Otago School of Dentistry. Results: Two hundred and twenty three cases of OKC/ KCOT were identified over the period ranging from 1987 to 2008. Mean age at presentation was 37.0 years (males 38.6 years, females 34.4 years), with 61.0% of cases being male The mandible was the dominant jaw affected, with 65.9% of lesions, with the angle of mandible being the commonest anatomical sub-location (with 32.4% of lesions). One-filth of the cases were asymptomatic incidental findings, while the majority of problems were related to the third molar tooth and/or pain and swelling. The overall recurrence rate was 18.3%, with the majority (62.2%) in the mandible and more males (67.5%) affected. Recurrence was highest in the first 5 years of follow-up, and decreased sharply thereafter. Conclusion: This study is the first to describe the frequency, distribution, presentation and recurrence rates of OKC/KCOT in New Zealand and shows that these are similar to those reported from other populations.
New Zealand Dental Journal
© 2011 New Zealand Dental Association. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
Dentistry not elsewhere classified