The aim of the study was to analyze the histologic and ultrastructural changes after maxillary sinus augmentation with simultaneous implant placement using engineered bone graft material.In this study,calcium phosphat...The aim of the study was to analyze the histologic and ultrastructural changes after maxillary sinus augmentation with simultaneous implant placement using engineered bone graft material.In this study,calcium phosphate cement(CPC)scaffolds combined with goat bone marrow stromal cells(BMSCs)were used to fill goat sinus floor space after maxillary sinus floor elevation with simultaneous implant placement comparing with those not filled any grafted materials and used as controls.After a healing period of 3 months,the goat maxillary sinus membrane was examined using light microscopy and scanning electronic microscopy.The results showed that the connective tissue thickness and the epithelium thickness of mucosa were not statistically significant difference between two groups.The tissue engineered bone complex might be an ideal graft for the sinus floor elevation and have no influence on the sinus membrane under the histological and ultrastructural observation.展开更多
“上颌窦三维成骨模式”(3-dimensional osteogenesis model for maxillary sinus,3D-OMMS)的提出阐明了上颌窦底提升的成骨机制,为临床中上颌后牙缺失患者进行上颌窦底提升的治疗提供了科学的理论依据。本文结合临床病例,从施耐德膜的...“上颌窦三维成骨模式”(3-dimensional osteogenesis model for maxillary sinus,3D-OMMS)的提出阐明了上颌窦底提升的成骨机制,为临床中上颌后牙缺失患者进行上颌窦底提升的治疗提供了科学的理论依据。本文结合临床病例,从施耐德膜的成骨潜力、双骨皮质支持、骨增量材料的应用及种植体表面改性四个方面阐述了“3D-OMMS”促进上颌窦内成骨的机制和临床意义。临床应用中包括单颗牙或多颗牙;即刻和延期种植;穿牙槽嵴上颌窦底提升以及侧壁开窗上颌窦底提升等术式,通过患者术前术后的计算机体层扫描(cone-beam computed tomography,CBCT)影像评估上颌窦区成骨效果。可见应用3D-OMMS,在上颌窦中形成成骨方向多元化的三维空间,缩短血管化成骨路径、加速成骨进程、提高新骨质量、增加种植成功率,因此在临床工作中可以被广泛应用。展开更多
基金the Natural Science Foundation of Science and Technology Commission of Shanghai Municipality (Nos.09JC1411700 and S30206)the Natural Science Foundation of Shanghai Jiaotong University School of Medicine(No.09XJ21030)
文摘The aim of the study was to analyze the histologic and ultrastructural changes after maxillary sinus augmentation with simultaneous implant placement using engineered bone graft material.In this study,calcium phosphate cement(CPC)scaffolds combined with goat bone marrow stromal cells(BMSCs)were used to fill goat sinus floor space after maxillary sinus floor elevation with simultaneous implant placement comparing with those not filled any grafted materials and used as controls.After a healing period of 3 months,the goat maxillary sinus membrane was examined using light microscopy and scanning electronic microscopy.The results showed that the connective tissue thickness and the epithelium thickness of mucosa were not statistically significant difference between two groups.The tissue engineered bone complex might be an ideal graft for the sinus floor elevation and have no influence on the sinus membrane under the histological and ultrastructural observation.
文摘“上颌窦三维成骨模式”(3-dimensional osteogenesis model for maxillary sinus,3D-OMMS)的提出阐明了上颌窦底提升的成骨机制,为临床中上颌后牙缺失患者进行上颌窦底提升的治疗提供了科学的理论依据。本文结合临床病例,从施耐德膜的成骨潜力、双骨皮质支持、骨增量材料的应用及种植体表面改性四个方面阐述了“3D-OMMS”促进上颌窦内成骨的机制和临床意义。临床应用中包括单颗牙或多颗牙;即刻和延期种植;穿牙槽嵴上颌窦底提升以及侧壁开窗上颌窦底提升等术式,通过患者术前术后的计算机体层扫描(cone-beam computed tomography,CBCT)影像评估上颌窦区成骨效果。可见应用3D-OMMS,在上颌窦中形成成骨方向多元化的三维空间,缩短血管化成骨路径、加速成骨进程、提高新骨质量、增加种植成功率,因此在临床工作中可以被广泛应用。