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Clinical and Radiographic Evaluation of Recurrent Odontogenic Keratocysts  

Jo, Hyung-Woo (Department of Oral & Maxillofacial Surgery, School of Dentistry, Kyungpook National University)
Choi, So-Young (Department of Oral & Maxillofacial Surgery, School of Dentistry, Kyungpook National University)
Kim, Hyun-Soo (Department of Dentistry, Kumi Cha hospital)
Kwon, Tae-Geon (Department of Oral & Maxillofacial Surgery, School of Dentistry, Kyungpook National University)
Jang, Hyun-Jung (Department of Oral & Maxillofacial Surgery, School of Dentistry, Kyungpook National University)
Lee, Sang-Han (Department of Oral & Maxillofacial Surgery, School of Dentistry, Kyungpook National University)
Kim, Chin-Soo (Department of Oral & Maxillofacial Surgery, School of Dentistry, Kyungpook National University)
Publication Information
Maxillofacial Plastic and Reconstructive Surgery / v.32, no.5, 2010 , pp. 431-436 More about this Journal
Abstract
Purpose: It is estimated that the odontogenic keratocyst (OKC) makes up 10% to 12% of all developmen-tal odontogenic cysts. The lesion has been of particular interest because of its specific histopathologic fea-ture, high recurrence rate, and aggressive behavior. Materials and Methods: We investigated 266 OKCs of Korean patients for the sex of patient, the age of the patient, the location of OKC, the recurrence rate related to radiographic impression. Results: The male-to-female ratio was 1.47:1, showing a slight male predilection. Odontogenic keratocysts had a peak of occurrence in the third decade of life. The mandibular angle and ascending ramus area (49.6%) is the most frequent site of OKCs in the jaws. Fourteen cases of unilocular (12%) and 5 cases of multilocular (20%) OKCs recurred. Thirteen cases of smooth (12.9%) and 6 cases of lobulated (14.6%) OKCs recurred. Seventeen cases of OKCs without perforation of cortical bone (12.5%) and 2 cases of OKCs with perforation of cortical bone (33.3%) recurred. Fifteen people of patients with single lesion (12.2%) and 4 people of patients with multiple lesions (66.7%) recurred. Conclusion: In this resul, we consider multiple odontogenic keratocysts can recur more easily. So we have to treat them more carefully and need long-time follow-ups.
Keywords
Odontogenic keratocyst; High recurrence rate;
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