Department of Oral and Maxillofacial Surgery, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany.
Clin Implant Dent Relat Res. 2011 Jun;13(2):124-33. doi: 10.1111/j.1708-8208.2009.00190.x.
The aim of this study was to macroscopically and microscopically evaluate different methods of indirect sinus floor elevation regarding elevation heights of 10 mm.
Four different methods of indirect sinus floor elevation-osteotome sinus floor elevation (OSFE), bone added osteotome sinus floor elevation (BAOSFE), piezo- surgical sinus floor elevation (PSFE), and sinus floor elevation with an inflatable balloon, balloon-lift-control system (BLC) - were macroscopically and microscopically investigated ex vivo using 36 bisected pigs' heads.
OSFE and BAOSFE perforated the Schneiderian membrane, whereas the inflatable balloon caused no laceration. PSFE elevated the mucosa without laceration as well, but was technically restricted to an elevation height of 5 mm. BAOSFE, PSFE, and BLC separated the mucosa, leaving the periosteum on the bone. OSFE completely lifted the soft tissue from the bone, including the periosteum.
The results of this study indicate that balloon elevation of the sinus floor may extend the indication for indirect sinus floor elevation for elevation heights of up to 10 mm. The histological elevation layer seems to be non-uniform in the different sinus floor elevation methods. Further in vivo experiments have to prove these findings as well as their relevance regarding the clinical outcome of sinus floor augmentation.
本研究旨在通过 10mm 的提升高度，从宏观和微观角度评估间接提升鼻窦底的不同方法。
采用 36 个半劈开猪头颅，对四种不同的间接提升鼻窦底的方法——骨凿式鼻窦底提升术（OSFE）、骨添加骨凿式鼻窦底提升术（BAOSFE）、超声骨切割术（PSFE）和带充气球囊的鼻窦底提升术（BLC）进行了宏观和微观研究。
OSFE 和 BAOSFE 刺穿了黏膜，而充气球囊则没有造成撕裂。PSFE 提升黏膜时也没有撕裂，但技术上仅限于提升高度为 5mm。BAOSFE、PSFE 和 BLC 分离了黏膜，保留了骨上的骨膜。OSFE 则将包括骨膜在内的软组织从骨上完全抬起。
本研究结果表明，鼻窦底充气提升术可能会将间接提升鼻窦底的适应证扩大到 10mm 的提升高度。不同鼻窦底提升方法的组织学提升层似乎不均匀。还需要进一步的体内实验来验证这些发现及其与鼻窦底提升的临床效果的相关性。
