Figure 4.
Morphological characterization of PMMA surface before a), after 25 kGy b), and 50 kGy c) irradiation with a scan size of 10 × 10 μm2 and their analyzed surface roughness d), using Atomic Force Microscopy (AFM). e) Contact angle values of PMMA surfaces before and after 25 kGy and 50 kGy irradiation. AFM and contact angle studies suggested that irradiation decreases the roughness and contact angle in a dose dependent manner. ns, *, and ** represent p > 0.05, p ≤ 0.05, and p ≤ 0.01, respectively. Data are presented as mean ± SD; n = 5.