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Overcoming the biological aging of titanium using a wet storage method after ultraviolet treatment

 Sung-Hwan Choi  ;  Won-Seok Jeong  ;  Jung-Yul Cha  ;  Jae-Hoon Lee  ;  Kee-Joon Lee  ;  Hyung-Seog Yu  ;  Eun-Ha Choi  ;  Kwang-Mahn Kim  ;  Chung-Ju Hwang 
 Scientific Reports, Vol.7(1) : 3833, 2017 
Journal Title
 Scientific Reports 
Issue Date
We evaluated whether the biological activity of the surface of titanium, when stored in an aqueous solution after ultraviolet (UV) treatment, is comparable to that of the surface immediately after UV treatment. We subjected Grade IV titanium discs with machined surfaces to UV radiation for 15 min and then tested them immediately and after storage for 28 days, with and without distilled H2O (dH2O). We evaluated the surface characteristics using surface profiling, contact angle analysis, X-ray photoelectron spectroscopy, and in terms of the surface zeta-potential. We determined the level of biological activity by analysing albumin adsorption, MC3T3-E1 and human mesenchymal cell adhesion and cytoskeleton development, as well as the production of intracellular reactive oxygen species between groups. The surface characteristics produced by the UV irradiation were maintained in dH2O for 28 days. We found that titanium stored in dH2O for 28 days after UV treatment exhibited enhanced protein adsorption, cell attachment, and cytoskeleton development. Titanium stored in dH2O for 28 days after UV irradiation exhibited a lower level of oxidative stress, comparable to that of the titanium immediately after UV treatment. UV treatment combined with wet storage can be used as a means of overcoming the biological aging of titanium.
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2. College of Dentistry (치과대학) > Dept. of Prosthodontics (보철과학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Dental Biomaterials and Bioengineering (치과생체재료공학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
Yonsei Authors
김광만(Kim, Kwang Mahn)
유형석(Yu, Hyung Seog) ORCID logo https://orcid.org/0000-0002-1275-5078
이기준(Lee, Kee Joon) ORCID logo https://orcid.org/0000-0002-0782-3128
이재훈(Lee, Jae Hoon) ORCID logo https://orcid.org/0000-0003-2281-8885
차정열(Cha, Jung Yul)
최성환(Choi, Sung Hwan) ORCID logo https://orcid.org/0000-0002-1150-0268
황충주(Hwang, Chung Ju) ORCID logo https://orcid.org/0000-0003-3024-4551
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