de Oliveira Greison R, Olate Sergio, Cavalieri-Pereira Lucas, Pozzer Leandro, Asprino Luciana, de Moraes Marcio, de Albergaría-Barbosa Jose Ricardo
Assistant Professor, Division of Oral and Maxillofacial Surgery, Universidade Estadual do Oeste do Paraná, Brazil.
J Oral Maxillofac Surg. 2013 Oct;71(10):1670-5. doi: 10.1016/j.joms.2013.05.025. Epub 2013 Jul 25.
The maxillary sinus lift is recognized and stable, and there have been different innovations to optimize the technique. The aim of this study was to investigate the maxillary sinus lift technique with the use of a blood clot and without the use of a bone graft.
Ten patients were recruited for a unilateral sinus lift; patients without sinus pathology or other contraindication were selected. The maxillary sinus was accessed conventionally under local anesthesia followed by an osteotomy and a 1-cm(2) bony window access. The sinus membrane was detached and the window was repositioned above and stabilized with a 12- or 14-mm osteosynthesis screw introduced through the alveolar ridge. Dental implants were installed in the second surgical stage. Standardized panoramic radiographic checks were performed at every stage.
Seven completely edentulous patients and 3 partially dentate patients were treated surgically. From the first to the second surgery, a bone gain of 2.37 mm was obtained, although loss of bone height was observed in 1 completely edentulous patient. In 7 patients, it was not possible to install the implants owing to insufficient bone height or inadequate bone quality.
The protocol used in this investigation failed in the bone increase required for implant installation.
上颌窦提升术已得到认可且较为稳定，并且有多种不同的创新方法来优化该技术。本研究的目的是探讨使用血凝块且不使用骨移植的上颌窦提升技术。
招募10例患者进行单侧窦提升术；选择无鼻窦病变或其他禁忌证的患者。在局部麻醉下常规进入上颌窦，随后进行截骨术并打开一个1平方厘米的骨窗。分离鼻窦黏膜，将骨窗重新放置在上方，并用一枚通过牙槽嵴植入的12或14毫米接骨螺钉固定。在第二阶段手术中植入牙种植体。在每个阶段都进行标准化的全景X线检查。
7例全口无牙患者和3例部分牙列缺损患者接受了手术治疗。从第一次手术到第二次手术，获得了2.37毫米的骨增量，不过有1例全口无牙患者出现了骨高度丢失。7例患者因骨高度不足或骨质量不佳而无法植入种植体。
本研究中使用的方案未能实现种植体植入所需的骨增量。
