Comparison on the titanium surfaces treated with laser/acid/nanotubes and sandblasted/acid

doi:10.3877/cma.j.issn.1674-1366.2014.05.005

Abstract

Abstract:

Objective

To compare the difference of titanium surfaces treated by laser/etch/nanotubes and sandblast/etch technique.

Methods

Two types of implant surfaces were fabricated by laser/acid etching/nanotubes （LAN） and sandblasting/acid etching （SLA） technique. The first group was treated by combination of laser spraying/18% HCl + 49% H₂SO₄ etching/anodization， the second group was treated by combination of Al₂O₃ particle sandblasting/18% HCl + 49% H₂SO₄ etching. The morphology， roughness and elemental composition were measured with scanning electron microscopy，EPMA and 3D surface topography instrument， respectively.

Results

Two types of rough implant surfaces were successfully fabricated by the two above mentioned treatment methods. The surface roughness of LAN group was larger than the SLA group （LAN：Ra=8.19±0.09 μm， Rq=10.64±2.10 μm，Rt=43.42±6.18 μm； SLA：Ra=2.09±0.13 μm， Rq=2.70±0.18 μm， Rt=15.36±0.50 μm）（t_Ra=-16.709，t_Rq=-9.206，t_Rt=-10.178，P＜0.05）. The surface of LAN was clean， while a few of oxide aluminum particles still existed on the surface of SLA.

Conclusion

Both LAN and SLA method can produce rough surfaces. The surfaces fabricated by LAN method appeared to be rougher， cleaner， with more regular structures and more controllable than SLA surfaces.

Key words: Titanium, Sandblast, Laser, Acid etching, Nanotubes

Jingxu Wang, Xianglong Ding, Mingdeng Rong, Hongyu Zhao, Lei Zhou. Comparison on the titanium surfaces treated with laser/acid/nanotubes and sandblasted/acid[J]. Chinese Journal of Stomatological Research(Electronic Edition), 2014, 8(05): 376-381.

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Figures/Tables 5

References 23

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