Oral Health Related Quality of Life in Cad Metallic and Poly Ether Ether Ketone (Peek) Partial Denture Frameworks in Mandibular Kennedy Class I Cases

Inclusion Criteria: * Patients with bilateral free end saddles in the mandible (Kennedy class I) with the last standing abutment second premolar * Opposing dentition is fully intact or restored to be intact * Adequate inter-arch space of at least 7mm * Angle's class I maxilla-mandibular relationship * Patients with no periodontal disease and good oral hygiene * Cooperative patients showing motivation to follow-up Exclusion Criteria: * Periodontal affection of the abutment teeth * Skeletal mal-relationship * Unmotivated patients to maintain adequate oral hygiene and to follow up---- ---- Patients with neuro-mascular disorders * Systemic disease affecting periodontal health like uncontrolled diabetes