保留第二磨牙的开窗减压术治疗单囊型成釉细胞瘤

目的 观察开窗减压术治疗单囊型成釉细胞瘤,同时保留下颌第二磨牙的疗效.方法 对6例包埋下颌第二磨牙的单囊型成釉细胞瘤采用开窗减压术结合肿瘤摘除术,同时保留下颌第二磨牙的手术方式进行治疗,随访5年.结果 开窗减压术后8个月,肿瘤平均缩小61.62％,下颌骨下缘骨质增厚,骨小梁形成;肿瘤摘除后6个月,颌骨形态基本恢复,下颌第二磨牙功能保留;术后随访1～5年,肿瘤无复发,下颌第二磨牙功能良好.结论 采取保留下颌第二磨牙的开窗减压术及肿瘤摘除术,不仅为患者降低了面容的毁损程度,还保存了颌骨及牙齿的功能,在临床上取得了满意的效果.

Using fenestration and decompression technique to treat unicystic ameloblastoma and preserve the second molar

Objective To observe fenestration and decompression technique in the treatment ofunicystic ameloblastoma while observing the efficacy of the method in preserving the mandibular second molar.Methods Unicystic ameloblastoma of six patients was treated using fenestration and decompression technique and tumor removal surgery while preserving the mandibular second molar.The patients were followed up for 1 to 5 years.Results Eight months after decompression,tumor shrinkage(61.62％),thickening of the lower edge of the mandible bone,and trabecular bone formation were assessed.Six months after tumor removal,jaw morphology recovered,and the features of the mandibular second molar were preserved.No recurrence of tumor was observed in the 1 to 5 years of follow up,and the mandibular second molar functioned well.Conclusion The fenestration and decompression technique along with tumor removal surgery to treat unicystic ameloblastoma not only reduces the disfigurement of the patient,but also preserves the function of jaw and teeth.Satisfactory clinical results were achieved.