Journal of AdvancedMedical and Dental Sciences Research

Background: Removable partial dentures should maintain the health of the remaining dentition and surrounding oral tissue. The present study was to determine risk factors for RPD failure in adult population. Materials & Methods: The present study was conducted in department of Prosthodontics. It comprised of 285 patients of both genders (males- 120, females- 165). Kennedy class I, II, III and IV was considered. The abutment tooth mobility was graded clinically by placing a tooth between two metal instrument handles and moving the tooth in as many directions as possible. Fracture of the abutment teeth was assessed clinically and radiographically. Fracture of rests, clasps, major connector and minor connectors was recorded. Results: Kennedy’s class I was present in 75 cases, II in 65 cases, III in 80 cases and IV in 55 cases. The difference was significant (P- 0.01). Common cause of failure was abutment fracture (52), fracture of rests (40), fracture of clasps (34), fracture of major connector (75) and minor connector (84). The difference was significant (P< 0.05). Conclusion: Common causes of failures were abutment fracture, fracture of rests, fracture of clasps, fracture of major connector and minor connector. Key words: Kennedy’s, Major connector, Removable partial dentures.