Stress Analysis of Implant-Supported Removable Partial Denture with Anterior Fixed Prostheses and Conventional Implant-Supported Overdentures in the Edentulous Mandible

Aim: To compare new design implant-supported removable partial dentures retained with anterior fixed prosthesis a conventional locater and bar attached implant overdenture prostheses by two or four implants via photoelastic stress analysis. Materials Methods: Seven edentulous mandibuler acryclic models prepared divided into main groups; to models, subgroup separation as stated; for locator attachment, crown clasp retention, bridge precision attachment retention; overdenture, retention. A 300 N load was applied the first premolars. Photoelastic analysis method that is specific concerning visualization, does not require statistical analysis, used. The distributions were seen in optically using poloriscope. Results: In implant-retained dentures, distribution found be lower than dentures. Nonsplinted caused high around distal on loading side. Conclusion: loads transmitted other splinting. Implant-supported an prosthetic show compared prosthesis. These appear advantageous terms of transmission.