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. 2015 Dec 24;6(1):2–9. doi: 10.1016/j.jobcr.2015.12.005

Table 3.

Contact angle.

Group Contact angle (degree)
Control 84.41 (55.00–90.00)
5% H3PO4 82.00 (32.10–178.10)
10% H3PO4 87.73 (76.86–111.83)
20% H3PO4 88.43 (74.23–110.20)

Data presented as median (minimum–maximum).