Front Physiol:Mg-MgHA/胶原支架可用于上颌窦提升手术

2017-11-26 MedSci MedSci原创

许多骨替代物已被用于上颌窦提升术中,如自体骨、无机牛骨、多孔和可再吸收的羟基磷灰石、磷酸三钙、生物活性玻璃和血块。本研究旨在通过DSA、组织学及组织形态学评估MgHA /胶原蛋白支架行上颌窦提升后6个月新生骨的生成效果。研究共纳入了11名健康患者,涉及15个上颌窦。使用多孔三维(3D)结构(Fin-Ceramica Faenza S.p.A.,Faenza,意大利)的商品化的MgHA /胶原蛋白基

许多骨替代物已被用于上颌窦提升术中,如自体骨、无机牛骨、多孔和可再吸收的羟基磷灰石、磷酸三钙、生物活性玻璃和血块。本研究旨在通过DSA、组织学及组织形态学评估MgHA /胶原蛋白支架行上颌窦提升后6个月新生骨的生成效果。

研究共纳入了11名健康患者,涉及15个上颌窦。使用多孔三维(3D)结构(Fin-Ceramica Faenza S.p.A.,Faenza,意大利)的商品化的MgHA /胶原蛋白基支架(RegenOss)进行上颌窦提升。这些移植物具有复合设计,复制了骨结构的组织,通过生物机制自发建立特定的杂化有机-无机复合物。术前、术后(T1)和术后6个月(T2)行CBCT扫描。将骨标本储存在10%福尔马林溶液中,包埋在乙二醇甲基丙烯酸酯树脂中,并通过高精度钻石圆盘切片。进行组织学和组织形态学分析以评价移植物重吸收和骨愈合的情况。

结果显示,术后即刻(5-7天)的平均移植物体积增加量为2906 mm3,范围为2148.8〜3146.4 mm3。术后(6个月)后为2806.7 mm3,范围为2010.9~3008.9 mm3。上颌窦完全愈合,没有残余的MgHA /胶原支架。成骨细胞出现主动分泌骨基质,骨髓腔包含中等数量的基质细胞和血管网,成骨细胞主动分泌类骨质基质。骨组织样本中有1.9±1.9%的片状骨,36±1%的编织骨和58±3.8%的骨髓腔。

综上所述,本研究结果表明,Mg-MgHA/胶原支架可成功用于上颌窦提升手术。

原始出处:


Scarano A, Lorusso F, et al., Sinus Augmentation with Biomimetic Nanostructured Matrix: Tomographic, Radiological, Histological and Histomorphometrical Results after 6 Months in Humans. Front Physiol. 2017 Aug 3;8:565. doi: 10.3389/fphys.2017.00565. eCollection 2017.

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