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. 2023 Jun 29;9(7):e17790. doi: 10.1016/j.heliyon.2023.e17790

Fig. 2.

Fig. 2

Representative photographs for the contact angle of the different materials before and after different surface treatment. (a): No surface treatment (zirconia). (b): After conventional surface treatment (AI). (c) After plasma surface treatment (AII). (d): No surface treatment (e.max CAD). (e): After conventional surface treatment (BI). (f) After plasma surface treatment (BII). (g): No surface treatment (cerasmart). (h): After conventional surface treatment (CI). (i) After plasma surface treatment (CII).