Clinical study of large maxillary cystic lesions treated by decompression

To evaluate the effects of decompression in treating large maxillary cystic lesions.

25 cases of large maxillary cystic lesions were performed decompression during Oct. 2007-Oct. 2014. According to the clinical and radiological examination, morphology of maxillary sinus and cyst cavity were observed.

12 cases of radicular cysts, 10 cases of dentigerous cysts, and 3 cases of keratocystic odontogenic tumor were diagnosed according to pathological examination. The appearance of the maxillary sinus were completely restored and the cyst disappeared totally in 7 cases after the first 3 months, and then after the next 9-12 months, the other 18 cases had the appearance of maxillary sinus completely or basically restored with a following enucleation of cysts. All patients were followed up for 1-5 years, and no recurrence was observed.

To treat large maxillary cystic lesions by decompression is effective to conserve the morphology and function of maxillary sinus, and it is a simple surgical approach with less damage and complications.