Nanotubular Oxide Layer Formed on Helix Surfaces of Dental Screw Implants
نویسندگان
چکیده
Surface modification is used to extend the life of implants. To increase corrosion resistance and improve biocompatibility metal implant materials, oxidation Ti-13Nb-13Zr titanium alloy was used. The samples for research had shape a helix with metric thread, their geometry imitating dental implant. oxide layer produced by standard electrochemical method in an environment 1M H3PO4 + 0.3% HF 20 min, at constant voltage 30 V. oxidized were analyzed scanning electron microscope. Nanotubular layers internal diameters 30–80 nm found. An analysis surface topography performed using optical microscope, Sa parameter determined top bottom, where significant difference value observed. presence layer, visible bottom helix, confirmed analyzing sample cross-sections computed tomography. Corrosion tests artificial saliva solution demonstrated higher current less noble potential due incomplete coverage pitting. Necessary improved parameters will be applied future work.
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ژورنال
عنوان ژورنال: Coatings
سال: 2021
ISSN: ['2079-6412']
DOI: https://doi.org/10.3390/coatings11020115