Prosthodontic rehabilitation of patient who have underwent maxillectomy surgery is a challenging task. Achieving optimum stability, retention and support are the major problems. An obturator with cast partial design is used to rehabilitate maxillectomy defect. The primary goals of the obturator prosthesis are to preserve the remaining teeth and tissues and to provide comfort, function, and aesthetics to the patients. This case report describes several steps of fabrication of a definitive obturator.