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- W2970090291 abstract "Abstract Additive manufacturing can be used to create personalized orthopedic and dental implants with varying geometries and porosities meant to mimic morphological properties of bone. These qualities can alleviate stress shielding and increase osseointegration through bone ingrowth, but at the expense of reduced fatigue properties compared to machined implants, and potential for loose build particle erosion. Hot isostatic pressure (HIP) treatment is used to increase fatigue resistance; implant surface treatments like grit‐blasting and acid‐etching create microroughness and reduce the presence of loose particles. However, it is not known how HIP treatment affects surface treatments and osseointegration of the implant to bone. We manufactured two titanium–aluminum–vanadium constructs, one with simple through‐and‐through porosity and one possessing complex trabecular bone‐like porosity. We observed HIP treatment varied in effect and was dependent on architecture. Micro/meso/nano surface properties generated by grit‐blasting and acid‐etching were altered on biomimetic HIP‐treated constructs. Human mesenchymal stem cells (MSCs) were cultured on constructs fabricated +/− HIP and subsequently surface‐treated. MSCs were sensitive to 3D‐architecture, exhibiting greater osteogenic differentiation on constructs with complex trabecular bone‐like porosity. HIP‐treatment did not alter the osteogenic response of MSCs to these constructs. Thus, HIP may provide mechanical and biological advantages during implant osseointegration and function." @default.
- W2970090291 created "2019-09-05" @default.
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- W2970090291 date "2019-08-30" @default.
- W2970090291 modified "2023-10-13" @default.
- W2970090291 title "Hot isostatic pressure treatment of 3D printed Ti6Al4V alters surface modifications and cellular response" @default.
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- W2970090291 doi "https://doi.org/10.1002/jbm.b.34474" @default.
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