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. 2016 Sep 15;6:33421. doi: 10.1038/srep33421

Figure 2. Changes in the hydrophilicity of the titanium disc surface after treatment over time.

Figure 2

(A) Changes in wettability by water over time, as measured using a 4-μL H2O droplet on the centre of each sample surface, between UV- and NTAPPJ-treated discs. (B) Changes in the contact angle with the titanium disc surface over time for the UV- and NTAPPJ-treated groups. Comparison of changes in the contact angle immediately (C) and 28 days (D) after treatment between groups. (E) Changes in the spread area of the titanium disc surface over time. Comparison of changes in the spread area immediately (F) and 28 days (G) after treatment between groups. ***P < 0.001 for comparisons between the indicated groups.