Comparing Impression Techniques for Maxillary Complete Denture Retention

Inclusion Criteria: * Patients with mild to moderately resorbed maxillary alveolar ridge * Patients with bimaxillary edentulous arches * Patients aged between 35 to 85 years willing to participate in the study * Patients who could be available for follow up visits Exclusion Criteria: * Patients with palatal torus or bony exostoses or severe undercuts in the maxillary arch * Patients with uncontrolled diabetes, osteoporosis, osteomalacia and osteopenia * Patients with xerostomia * Patients with mucosa covering the denture bearing area with signs of inflammation, ulceration, or hyperplasia. * Patients undergoing radiotherapy or chemotherapy or maxillofacial surgery * Patients suffering from maxillofacial trauma * Patients with neuromuscular disorders * Patients with clinical signs and symptoms of temporomandibular joint dysfunction * Patients with highly resorbed maxillary ridge and/ or flabby ridge * Patient with hypersensitivity to silicone materials