Aim of the Study: This study aims to evaluate cytotoxicity different stereolithographic 3D printed materials and polyetheretherketone for varying time intervals using MTT assay by application these intra-oral usage. Materials Methods: Three groups disc specimens (5 mm diameter, 2 thick) were manufactured either selective laser melting (PA6 nylon, fiber reinforced PA6 nylon) or milling (PEEK). T...