Department of Oral Surgery, University of Siena, Siena, Italy.
Clin Implant Dent Relat Res. 2012 Oct;14(5):682-9. doi: 10.1111/j.1708-8208.2010.00318.x. Epub 2010 Dec 22.
Membrane elevation in combination with implant placement without biomaterials is a rather new technique proposed for sinus lifting.
This study assessed the clinical outcome of such technique during the first year of loading.
Fifteen patients with a mean residual bone height of 6.2 mm were consecutively recruited for sinus lifting. After opening a replaceable bone window, the membrane was dissected from the sinus walls. A total of 28 implants were placed in the residual crest and they kept the membrane lifted upwards. After window repositioning, the flap was sutured. A 6-month healing period was allowed. Patients were re-examined after 12 months of loading.
All the implants survived at the end of the follow-up. The 5.5 mm mean bone reformation was significantly lower than the 8.2 mm mean membrane lift achieved after implant placement. Regeneration at the distal surface of the most posterior implants was significantly less than at other aspects. The height of membrane lift was not correlated with the amount of regenerated bone.
All of the 28 implants placed in combination with sinus membrane elevation were stable during the first year of loading. No extra costs for biomaterial or morbidity for bone harvesting were necessary.
在不使用生物材料的情况下，结合植入物放置进行膜提升是一种用于鼻窦提升的新技术。
本研究评估了在负荷的第一年中该技术的临床效果。
连续招募了 15 名平均剩余骨高度为 6.2 毫米的患者进行鼻窦提升。打开可更换的骨窗后，从鼻窦壁上分离出膜。总共在剩余的嵴部放置了 28 个植入物，以保持膜向上提升。重新定位窗口后，缝合皮瓣。允许 6 个月的愈合期。在负荷 12 个月后对患者进行重新检查。
所有植入物在随访结束时均存活。5.5 毫米的平均骨重建明显低于植入物放置后 8.2 毫米的平均膜提升。最靠后的植入物远端表面的再生明显少于其他方面。膜提升的高度与再生骨的量无关。
在负荷的第一年中，与鼻窦膜提升相结合放置的 28 个植入物均稳定。不需要额外的生物材料成本或骨质采集的发病率。
