Abstract：
This retrospective study investigated the reduction rate and speed of shrinkage after marsupialization in mandibular cystic ameloblastoma and clarified whether marsupialization is appropriate for unicystic ameloblastoma and multicystic ameloblastoma.
Sixty-three patients with mandibular cystic ameloblastoma were initially treated with marsupialization. Premarsupialization and postmarsupialization panoramic radiographs were reviewed for reduction rate and speed of shrinkage, and then were evaluated with age, sex, tumor location, and tumor type.
The overall recurrence rate was 4.5% (2/44). The average reduction rate after marsupialization was 65.6%. No significant difference was found between unicystic ameloblastoma and multicystic ameloblastoma in reduction rate. The speed of shrinkage of unicystic ameloblastoma was significantly faster than that of multicystic ameloblastoma (P < .05). Similarly, patients with multicystic ameloblastoma had longer marsupialization periods than those with unicystic ameloblastoma (P < .05).
Marsupialization is effective in reducing tumor size for both unicystic ameloblastoma and multicystic ameloblastoma. Marsupialization plus second-stage curettage is recommended as the primary treatment for mandibular cystic ameloblastoma.
Sixty-three patients with mandibular cystic ameloblastoma were initially treated with marsupialization. Premarsupialization and postmarsupialization panoramic radiographs were reviewed for reduction rate and speed of shrinkage, and then were evaluated with age, sex, tumor location, and tumor type.
The overall recurrence rate was 4.5% (2/44). The average reduction rate after marsupialization was 65.6%. No significant difference was found between unicystic ameloblastoma and multicystic ameloblastoma in reduction rate. The speed of shrinkage of unicystic ameloblastoma was significantly faster than that of multicystic ameloblastoma (P < .05). Similarly, patients with multicystic ameloblastoma had longer marsupialization periods than those with unicystic ameloblastoma (P < .05).
Marsupialization is effective in reducing tumor size for both unicystic ameloblastoma and multicystic ameloblastoma. Marsupialization plus second-stage curettage is recommended as the primary treatment for mandibular cystic ameloblastoma.
摘要：
这项回顾性研究调查了下颌囊性成釉细胞瘤的袋化后的减少率和收缩速度，并阐明了袋化是否适合单囊性成釉细胞瘤和多囊性成釉细胞瘤。
63例下颌囊性成釉细胞瘤患者最初接受有袋化治疗。对袋前和袋后全景X射线照片的减少率和收缩速度进行了回顾，然后根据年龄进行评估，性别,肿瘤位置,和肿瘤类型。
总复发率为4.5%(2/44)。有袋化后的平均还原率为65.6％。单囊性成釉细胞瘤和多囊性成釉细胞瘤的减少率无明显差异。单囊性成釉细胞瘤的收缩速度明显快于多囊性成釉细胞瘤（P<0.05）。同样，多囊性成釉细胞瘤患者的袋化期比单囊性成釉细胞瘤患者长（P<0.05）。
对于单囊性成釉细胞瘤和多囊性成釉细胞瘤，袋形化可有效减小肿瘤大小。建议将袋袋化加第二阶段刮治作为下颌骨囊性成釉细胞瘤的主要治疗方法。
63例下颌囊性成釉细胞瘤患者最初接受有袋化治疗。对袋前和袋后全景X射线照片的减少率和收缩速度进行了回顾，然后根据年龄进行评估，性别,肿瘤位置,和肿瘤类型。
总复发率为4.5%(2/44)。有袋化后的平均还原率为65.6％。单囊性成釉细胞瘤和多囊性成釉细胞瘤的减少率无明显差异。单囊性成釉细胞瘤的收缩速度明显快于多囊性成釉细胞瘤（P<0.05）。同样，多囊性成釉细胞瘤患者的袋化期比单囊性成釉细胞瘤患者长（P<0.05）。
对于单囊性成釉细胞瘤和多囊性成釉细胞瘤，袋形化可有效减小肿瘤大小。建议将袋袋化加第二阶段刮治作为下颌骨囊性成釉细胞瘤的主要治疗方法。
