Surface modifications and Nano-composite coatings to improve the bonding strength of titanium-porcelain

Materials Science & Engineering. C, Materials for Biological Applications
Litong GuoYinghuai Qiang

Abstract

Surface modifications of Ti and nano-composite coatings were employed to simultaneously improve the surface roughness, corrosion resistance and chemical bonding between porclain-Ti. The specimens were studied by field-emission scanning electron microscopy, surface roughness, differential scanning calorimetry, Fourier transform infrared spectroscopy, corrosion resistance and bonding strength tests. The SEM results showed that hybrid structures with micro-stripes, nano-pores and nano-protuberances were prepared by surface modification of Ti, which significantly enhanced the surface roughness and corrosion resistance of Ti. Porous nano-composite coatings were synthesized on Ti anodized with pre-treatment in 40% HF acid. TiO2 nanoparticles were added into the hybrid coating to increase the solid phase content of the sols and avoid the formation of microcracks. With the TiO2 content increasing from 45 wt% to 60 wt%, the quantities of the microcracks on the coating surface gradually decreased. The optimal TiO2 content for the nanocomposite coatings is 60 wt% in this research. Compared to the uncoated group, the bonding strength of the coated groups showed a bonding strength improvement of 23.96%. The cytotoxicity of the 4# coating gr...Continue Reading

References

Jul 8, 2010·Dental Materials : Official Publication of the Academy of Dental Materials·Shaymaa E ElsakaMichael V Swain
Aug 1, 2012·Materials Science & Engineering. C, Materials for Biological Applications·Litong GuoTianwen Guo
Jan 21, 2014·Dental Materials : Official Publication of the Academy of Dental Materials·M MohedanoM C Merino

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Citations

Apr 18, 2019·Journal of Biomaterials Applications·Beijing XueYinghuai Qiang
Jan 17, 2017·Clinical Implant Dentistry and Related Research·Bingkun ChengLiang Kong
Jun 7, 2021·The Journal of Prosthetic Dentistry·Saadet Saglam AtsuFaleh Tamimi

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