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author:("Ding, soyang")
1.  In vitro and in vivo studies of surface-structured implants for bone formation 
Background and methods
Micronanoscale topologies play an important role in implant osteointegration and determine the success of an implant. We investigated the effect of three different implant surface topologies on osteoblast response and bone regeneration. In this study, implants with nanotubes and micropores were used, and implants with flat surfaces were used as the control group.
Results
Our in vitro studies showed that the nanostructured topologies improved the proliferation, differentiation, and development of the osteoblastic phenotype. Histological analysis further revealed that the nanotopology increased cell aggregation at the implant-tissue interfaces and enhanced bone-forming ability. Pushout testing indicated that the nanostructured topology greatly increased the bone-implant interfacial strength within 4 weeks of implantation.
Conclusion
Nanotopography may improve regeneration of bone tissue and shows promise for dental implant applications.
doi:10.2147/IJN.S29496
PMCID: PMC3446836  PMID: 23028216
osteoblast; osteointegration; titanium; nanostructure; microstructure

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