Abstract：
This report describes maxillary antral pseudocyst drift after maxillary sinus floor augmentation through osteotome sinus floor elevation with simultaneous implant placement. 3D Slicer was used to measure the pseudocyst and maxilla for the placement of the implants; follow-up visits were scheduled at 6, 12, and 22 months. No adverse effects were observed during or after surgery, and all implants exhibited osseointegration without mobility. At 6 months after surgery, the pseudocyst had moved posterolaterally from the preoperative position near the anterior medial maxillary sinus, then returned to its original position at 12 months. However, it had remigrated to the posterolateral position at 22 months. The preoperative volume of the pseudocyst was 3.795 mm3; it was 2.370, 3.439, and 2.930 mm3 at 6, 12, and 22 months after surgery, respectively. The changes in pseudocyst drift and volume did not have a substantial negative influence on the implants, presumably because of cystic attachment and the recurrence of multiple pseudocysts at different locations. The risks associated with changes in a pseudocyst can be avoided, if an appropriate treatment plan is selected.
摘要：
本报告描述了通过骨凿窦底抬高并同时放置植入物进行上颌窦底增强后的上颌窦假性囊肿漂移。使用3D切片器测量假性囊肿和上颌骨以放置植入物；计划在6、12和22个月进行随访。术中或术后未观察到不良反应,所有植入物都表现出骨整合而没有活动性。手术后6个月,假性囊肿从术前内侧上颌窦附近位置向后移动，然后在12个月时回到原来的位置。然而,它在22个月时重新迁移到后外侧位置.术前假性囊肿体积为3.795mm3；术后6、12和22个月分别为2.370、3.439和2.930mm3，分别。假性囊肿漂移和体积的变化对植入物没有实质性的负面影响，可能是由于囊性附着和不同位置的多个假性囊肿的复发。可以避免与假性囊肿变化相关的风险，如果选择了适当的治疗计划。
