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The water contact angle and the surface roughness of tetragonal zirconia, cubic zirconia, lithium disilicate, zirconia-reinforced lithium silicate, and hybrid-ceramic samples. TZr: Tetragonal zirconia, CZr: Cubic zirconia, LDS: Lithium disilicate, ZLS: Zirconia-reinforced lithium silicate, HyC: hybrid ceramic.
