Surface treatment

       The interaction of plasma with the surface of different materials alters their surface energy and this has an effect on adhesion [138, 139]. The adhesion of different materials is a vitally important parameter in many applications. In the case of medical implants, such as dental implants, greater adhesion facilitates the attachment of tissue to the implant [140]. The interaction with cold atmospheric plasma, unlike other treatments, does not alter the volumetric properties of the material and it is respectful even with materials that do not resist thermal or chemical treatments, such as polymers.

           In recent years, multiple studies demonstrate that plasma treatment of polymeric surfaces increases surface wettability [71, 141, 142]. This improves adhesion and makes plasma treatment the perfect complement for 3D printing to improve the quality of joints between parts.

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