In vitro bioactivity of laser surface-treated Ti6Al4V alloy

The effects of lasing parameters on the precipitation of hydroxyapatite (HA) on the commercial Ti6Al4V alloy in simulated body fluid (SBF) were investigated. Ti6Al4V plates were polished and ultrasonically cleaned in acetone and ethyl alcohol, respectively. The specimen surfaces were treated with Er...

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Bibliographic Details
Published in:Lasers in medical science 2019-10, Vol.34 (8), p.1567-1573
Main Authors: Yoruç, Afife Binnaz Hazar, Keleşoğlu, Ergün, Yıldız, Harika Ekşioğlu
Format: Article
Language:English
Subjects:
Acetone
Alcohols
Biocompatibility
Biological activity
Biomedical materials
Body fluids
Dentistry
Ethanol
Hydroxyapatite
In vitro methods and tests
Lasers
Lasing
Medicine
Medicine & Public Health
Optical Devices
Optics
Original Article
Parameters
Photonics
Precipitation
Quantum Optics
Semiconductor lasers
Submerging
Surface roughness
Surgical implants
Titanium base alloys
YAG lasers
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Summary:The effects of lasing parameters on the precipitation of hydroxyapatite (HA) on the commercial Ti6Al4V alloy in simulated body fluid (SBF) were investigated. Ti6Al4V plates were polished and ultrasonically cleaned in acetone and ethyl alcohol, respectively. The specimen surfaces were treated with Er:YAG laser using super short pulse (SSP, 50 μs) and very short pulse (VSP, 100 μs) modes. Surface roughness was measured before and after laser treatment. The specimens were immersed in simulated body fluid (SBF) for 1, 3, and 7 days and, then the amount of Ca and P precipitation on specimens was determined using SEM/EDS analysis. An average roughness varying between 0.19 and 0.81 μm in surface roughness was detected in all laser-treated specimens depending on the lasing parameters. The highest surface roughness and Ca precipitation were found in VSP group (20 Hz and 5 W). Laser treatment of specimen surfaces has dramatically increased the HA precipitation due to the increasing surface roughness. It is also concluded that the immersion time was effective on the HA precipitation as well.
ISSN:0268-8921
1435-604X
DOI:10.1007/s10103-019-02746-z