关键词: 牙源性角化囊肿, 复发, 保守治疗, 根治性治疗

Abstract: Objective To evaluate the result of the surgical treatment for recurrent odontogenic keratocyst. Methods The clinical data of 79 cases of recurrent odontogenic keratocyst， who had received operation in Department of Oral and Maxillofacial Surgery， School of Stomatology， Fourth Military Medical University and were conformed by pathological evidence，from January 1998 to March 2008， were collected and the different treatment effect analyzed. Results The methods of operation included conservative and radical treatment.（1）The recurrence rate of patients with conservative treatment was 29.7%（11／37），in which the recurrence rates were 80.0%（8／10）and 11.1%（3／27）in the patients treated with curettage and curettage combined with cryotherapy， microwave or radiofrequency ablation respectively. The recurrence rate of those with radical treatment was 2.3%（1／42）.（2）The mean recurrent time was 21.8 months and 47.6 months in the patients treated with curettage and curettage combined with cryotherapy ， microwave or radiofrequency ablation respectively. Postoperative recurrent time in 1 case with radical treatment was 4 years.（3）The patients with conservative treatment had no obvious defects. The patients with radical treatment had different degree of maxillofacial deformities and occlusal obstacles. Conclusion The radical treatment is the primary therapy for recurrent odontigenic keratocysts. For part of the cases， the application of positive conservative treatment can reduce complications as a result of ostectomy， reduce the recurrence， and achieve treatment effect similar to radical treatment.

Key words: odontogenic keratocyst, recurrent, conservative treatment, radical treatment