关键词: 下颌骨, 囊性病变, 刮治开窗减压术, 刮治术

Abstract: Objective    To study the clinical effect of curettage and fenestration decompression in the treatment of large mandibular cystic lesions. Methods    Clinical and imaging data of 68 patients with large mandibular cystic lesions admitted to the Department of Stomatology of Xuzhou Central Hospital from June 2020 to September 2022 were selected for retrospective analysis. All patients were divided into cystic wall removal group（36 cases）and cystic wall retaining group（32 cases）according to different methods of decompression，and were followed up for more than 1 year to compare the clinical outcomes，the occurrence of postoperative adverse reactions and the rate of secondary surgery between the 2 groups. Results    The clinical treatment effectiveness of the cystic wall removal group was 97.22%（35/36），which was slightly higher than that of the cystic wall retaining group［93.75%（30/32）］，and the difference was not statistically significant（χ2 = 0.011，P = 0.917）. There were no significant differences in the incidence of postoperative adverse reactions such as cheek swelling，lower lip numbness and osteomyelitis between the two groups（all P > 0.05）. Four patients in the cystic wall removal group underwent secondary surgery，and their rate of secondary surgery（11.11%）was significantly lower than that of the cystic wall retaining group ［75.00%（24/32）］，with a statistically significant difference（χ2 = 28.549，P < 0.001）. Conclusion    Curettage and fenestration decompression for large mandibular cystic lesions has better results，and most patients need only one operation，which is worth clinical reference.

Key words: mandible, cystic lesions, curettage and fenestration decompression, curettage