Periodontics, Melbourne Dental School, University of Melbourne, Melbourne, Australia.
Clin Oral Implants Res. 2012 Aug;23(8):918-24. doi: 10.1111/j.1600-0501.2011.02239.x. Epub 2011 Jun 24.
This study evaluated the histomorphometric and clinical outcomes of maxillary sinus floor elevation using deproteinized bovine bone mineral (DBBM).
Maxillary sinuses with a residual vertical height of <5 mm were augmented with DBBM alone before implant placement 9 months later. At the time of implant surgery, trephine samples were removed and histological and histomorphometric analyses were performed to examine the percentage of bone and residual graft using point counting and software-aided analysis. Patients were recalled for clinical and radiographic examination up to 3 years later.
Twenty-five patient specimens were analysed. The percentages of regenerated bone and residual graft material were 19% and 40%, respectively. Software-aided analysis was comparable to point counting. Twelve patients attended for clinical follow-up. Implants placed into this regenerated bone exhibited success and survival rates of 100% after an average follow-up of 3 years. The average vertical height gained was 7.9 mm.
The use of DBBM alone in maxillary sinus floor elevation is a predictable method to gain vertical bone height in the posterior maxilla.
本研究评估了脱蛋白牛骨矿物质（DBBM）用于上颌窦底提升的组织形态计量学和临床结果。
在 9 个月后植入前，单独使用 DBBM 对垂直剩余高度<5mm 的上颌窦进行了增强。在植入手术时，取出环钻样本，并使用点计数和软件辅助分析进行组织学和组织形态计量学分析，以检查骨和剩余移植物的百分比。在 3 年之后，对患者进行了临床和影像学检查。
分析了 25 例患者标本。再生骨和剩余移植物材料的百分比分别为 19%和 40%。软件辅助分析与点计数具有可比性。12 名患者接受了临床随访。在平均 3 年的随访后，植入到再生骨中的种植体具有 100%的成功率和存活率。平均获得的垂直高度为 7.9mm。
单独使用 DBBM 在上颌窦底提升中是一种可预测的方法，可以在后上颌获得垂直骨高度。
