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目的:研究保存颌骨大型囊性病变相关牙的临床效果。方法:对22例颌骨囊性病变患者的102颗相关受累牙术前行根管治疗。手术彻底刮除颌骨病变组织后,用电钻将暴露于骨腔中的根尖磨除2～3mm。术后随访7～28个月,检查经治牙的松动、咬合、牙根吸收以及骨质修复情况。结果:22例患者颌骨囊性病变均无复发。102颗经治牙中,98颗成功保留,均能正常行使咀嚼功能;4颗因松动加剧于术后3个月拔除。结论:颌骨大型囊性病变相关牙,经术前根管治疗联合术中根尖切除可予有效保存,不增加囊性病变的复发率。
Objective: To study the clinical effect of preserving teeth associated with large cystic lesions of the jaw. Methods: A total of 102 related dental implants were treated with root canal therapy in 22 patients with cystic lesions of the jaw. Surgery to completely remove the lesion of the jaw tissue, the drill will be exposed to the root canal in the bone cavity removed 2 ~ 3mm. The patients were followed up for 7 to 28 months and examined for looseness, bite, root resorption and bone repair. Results: All the 22 patients had no recurrence of cystic lesions. Of the 102 implants, 98 were successfully preserved, all of which were able to exercise masticatory function normally; and 4 of them were exasperated after 3 months of operation because of looseness. Conclusion: The maxillary cystic lesions associated with maxillofacial teeth can be effectively preserved by preoperative root canal therapy combined with apical resection without increasing the recurrence rate of cystic lesions.