Falah Mizied, Srouji Samer
Int J Oral Maxillofac Implants. 2016 Jul-Aug;31(4):842-8. doi: 10.11607/jomi.4406.
Maxillary sinus membrane elevation is a common procedure intended to increase the volume of the maxillary sinus osseous floor prior to insertion of dental implants. The aim of this study was to evaluate bone formation under a perforated sinus membrane grafted with buccal fat pad (BFP).
Six consecutive patients (10 sinus augmentations, 24 dental implants) underwent sinus floor elevation, using the lateral window approach. The compartment around the implants under the sinus mucosal lining in the sinus floor was filled with adipose tissues, which were retrieved as free graft from BFP. Clinical and radiologic follow-up was conducted through the healing period; in all cases, samples were taken for biopsy during the stage-two surgery.
New bone consolidation in the maxillary sinus was radiologically and histologically observed within an average of 7.2 months after the sinus augmentation. According to the histomorphometric data, 62.8% ± 13.1% vital bone formation was observed. Out of the 24 implants placed, only 1 failed, indicating a 95% overall implant survival rate.
Despite the limited size of this case series, BFP can be considered an autologous osteogenic graft material and/or biologic membrane capable of achieving high success rates in sinus elevation procedures.
上颌窦膜提升术是一种常见的手术，旨在在植入牙种植体之前增加上颌窦骨底的容积。本研究的目的是评估用颊脂垫（BFP）移植修复穿孔窦膜下的骨形成情况。
连续6例患者（10次窦腔增大，24颗牙种植体）采用外侧开窗法进行窦底提升术。在窦底窦黏膜下种植体周围的间隙填充从BFP获取的游离移植脂肪组织。在愈合期进行临床和影像学随访；所有病例均在二期手术时取样本进行活检。
在上颌窦增大术后平均7.2个月时，通过影像学和组织学观察到上颌窦内有新骨形成。根据组织形态计量学数据，观察到有62.8%±13.1%的活性骨形成。在植入的24颗种植体中，仅1颗失败，总体种植体存活率为95%。
尽管本病例系列规模有限，但BFP可被视为一种自体成骨移植材料和/或生物膜，在窦提升手术中能够取得较高的成功率。
