A 70-year-old male patient with the completely edentulous maxilla and a hard palate defect complains of difficult eating, pouring of liquid food through the nose, frequent chronic diseases of the nasal mucosa. Objectively: the maxillary alveolar bone is atrophied (Schroeder class I), the mucosa pliability complies with Supple class I. The hard palate exhibits a cicatrically changed defect sized 2x3 cm. What denture design would be most effective in this case?