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Excellent Mechanical Properties, Wettability and Biological Response of Ultrafine-Grained Pure Ti Dental Implant Surface Modified by SLActive

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Abstract

The main purpose of this study is to investigate the effect of microstructuring plus a surface modification method, named SLActive, on mechanical properties and biocompatibility of coarse-grained (CG) titanium grade 2 by in vitro test. In fact, SLActive process is a developed SLA method. To investigate the effects of these two applications on coarse-grained Ti-gr2, this last was grain-refined by the equal channel angular pressing (ECAP). Afterward, SLA and SLActive methods were applied on coarse-grained (CG)-Ti grade 2, ultrafine-grained (UFG)-Ti grade 2, coarse-grained (CG)-Ti grade 4 and Ti-6Al-4 V alloy. Tensile test revealed that mechanical properties of UFG-Ti-gr2 were all developed up to those of Ti-6Al-4 V. Vickers microhardness test showed an increase in hardness of ~162% for UFG-Ti-gr2 compared to CG-Ti-gr2. Surface roughness test indicated the surface of UFG-Ti-gr2 as the roughest among others. The drop test registered an angle of ~0° for all SLActive samples. MTT test represented the highest cell viability and proliferation for SLActive UFG-Ti-gr2 sample. As it was found out from results, the SLActive UFG-Ti-gr2 sample presented the highest potential, among other materials, to be used in dental implant production industries.

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Funding

This research was supported by the University of Tehran.

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Authors and Affiliations

  1. School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, 11155-4563, Iran

    Mohammadreza Sadrkhah, Ghader Faraji, Somayeh Khorasani & Mohsen Mesbah

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  1. Mohammadreza Sadrkhah
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  2. Ghader Faraji
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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by MS and SK. The first draft of the manuscript was written by MS, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Ghader Faraji.

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Sadrkhah, M., Faraji, G., Khorasani, S. et al. Excellent Mechanical Properties, Wettability and Biological Response of Ultrafine-Grained Pure Ti Dental Implant Surface Modified by SLActive. J. of Materi Eng and Perform 32, 11408–11421 (2023). https://doi.org/10.1007/s11665-023-07928-z

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