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

Guo, Litong; Chen, Xiaoyuan; Liu, Xuemei; Feng, Wei; Li, Baoe; Lin, Cheng Xin; Tao, Xueyu; Ye, Qiang

doi:10.1016/j.msec.2015.12.030

Cited by 21 publications

(13 citation statements)

References 11 publications

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“…Surface modification is wildly utilized to decorate the titanium implants in order to obtain specific physical morphologies and chemical composition, forming a biological binding between the implant and surrounding bone and thus improving their biocompatibility. It has been attracting an increasing attention in the field of implanted materials [ 1 – 4 ]. Sandblast and acid-etching (SLA) is one of the most prevalent processing technologies for titanium implants.…”

Section: Introductionmentioning

confidence: 99%

Micro/nano hierarchical structured titanium treated by NH4OH/H2O2 for enhancing cell response

et al. 2018

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In this paper, two kinds of titanium surfaces with novel micro/nano hierarchical structures, namely Etched (E) surface and Sandblast and etched (SE) surface, were successfully fabricated by NH4OH and H2O2 mixture. And their cellular responses of MG63 were investigated compared with Sandblast and acid-etching (SLA) surface. Scanning electron microscope (SEM), Surface profiler, X-ray photoelectron spectroscopy (XPS), and Contact angle instrument were employed to assess the surface morphologies, roughness, chemistry and wettability respectively. Hierarchical structures with micro holes of 10–30 μm in diameter and nano pits of tens of nanometers in diameter formed on both E and SE surfaces. The size of micro holes is very close to osteoblast cell, which makes them wonderful beds for osteoblast. Moreover, these two kinds of surfaces possess similar roughness and superior hydrophilicity to SLA. Reactive oxygen species were detected on E and SE surface, and thus considerable antimicrobial performance and well fixation can be speculated on them. The cell experiments also demonstrated a boost in cell attachment, and that proliferation and osteogenic differentiation were achieved on them, especially on SE surface. The results indicate that the treatment of pure titanium with H2O2/NH4OH is an effective technique to improve the initial stability of implants and enhance the osseointegration, which may be a promising surface treatment to titanium implant.

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Section: Introductionmentioning

confidence: 99%

Micro/nano hierarchical structured titanium treated by NH4OH/H2O2 for enhancing cell response

et al. 2018

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“…Titanium has received much more attention as a good dental restorative material, because of its excellent characteristics, such as low cost, high strength, being lightweight, having excellent corrosion resistance and biocompatibility [1][2][3]. However, when the fusion temperature is above 800 °C, the Ti surface oxidation will result in a decrease in the bonding strength between the porcelain and Ti, which restricts the application of titanium porcelain [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Microwave Fusion of a Low-Fusing Titanium Body Porcelain Coating Derived From Facile Sol-Gel Combustion Synthesis

Qi-xuan¹

2019

Ceramics - Silikaty

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Titanium body porcelains were synthesised through the sol-gel combustion method by using carbamide and glycine as the composite organic fuels with a mole ratio of 7:3. Then the synthesised porcelain was microwave fused on the Ti surface. The porcelain was characterised by X-ray diffraction and scanning electron microscope tests. The XRD results showed that the body porcelains ignited at 400, 500 and 600 °C were all amorphous. When the ignited temperature is only 400 °C, some crystalline diffraction peaks of KNO 3 existed due to the incomplete combustion reaction. When the igniting temperature was elevated to 500 and 600 °C or a higher ratio of fuel to nitrates (1.25:1 and 1.5:1) was employed, the nitrates completely reacted and there was no obvious nitrate residue. The size and quantity of the pores slightly increased with the ratio of fuel to nitrates increased from 1:1 to 1.5:1. A dense coating with a homogeneous vitreous structure was fused on the Ti surface by microwaves.

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“…1,2 However, when the temperature is above 800°C, the continuous oxidation of Ti will result in the decrease of bonding strength between the porcelain and the Ti, which restricts its application. 3,4 Therefore, special glass-ceramics with low fusion temperature were developed in this research.…”

Section: Introductionmentioning

confidence: 99%

Sol-gel preparation of anti-bacterial and bioactive glass-ceramics

et al. 2019

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Glass-ceramics were synthesized through the sol-gel method. The Thermogravimetry & Differential scanning calorimetry (TG-DSC), X-ray diffraction (XRD), BET, Scanning electron microscope (SEM), bioactivity and turbidometric tests were used to characterize the properties of the glass-ceramics. The TG-DSC results showed that the nitrates could be decomposed completely when the bioactive glass xerogel precursor was heat treated at 750°C. The synthesized glass-ceramic powders had an average particle size of about 3 μm to 20 μm with nanopores on the surface. The XRD results showed that the Na2Ca3Si6O16 and CaSiO3 were the major phases of the glass-ceramics heat treated at 600°C and 700°C, respectively. The flexural strength significantly increased from 79.2 MPa to 163.6 MPa with the sintering temperature increasing from 550°C to 600°C. The formation of carbonated hydroxyapatite can be proved by FT-IR results in this study. The synthesized glass-ceramics have good bioactivity and anti-bacterial property.

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

Cited by 21 publications

References 11 publications

Micro/nano hierarchical structured titanium treated by NH4OH/H2O2 for enhancing cell response

Micro/nano hierarchical structured titanium treated by NH4OH/H2O2 for enhancing cell response

Microwave Fusion of a Low-Fusing Titanium Body Porcelain Coating Derived From Facile Sol-Gel Combustion Synthesis

Sol-gel preparation of anti-bacterial and bioactive glass-ceramics

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