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Case Report

Non-Rigid Connectors in Fixed Prosthodontics: A Case Report

Deshpande Saee S.* , Deshpande Saee S. , Sarin Soumil P.

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Indian Journal of Dental Education 6(2):p 79-83, April - June 2013. | DOI:

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Abstract

The occlusal forces applied to a fixed partial denture (FPD) are transmitted to the supporting structures through the pontic, connectors, and retainers. The excessive flexing of the long-span FPD, which varies with the cube of the length of span, can lead to material failure of prosthesis or to an unfavorable response. Biomechanical factors such as overload, leverage, torque and flexing, induce abnormal stress concentration in an FPD. Stress concentration is found in the connectors of the prosthesis and in the cervical dentin area near the edentulous ridge. This factor plays an important role in the potential for failure in long-span FPD. The conventional use of a nonrigid connector (NRC) aids in compensating for the difference in the resistance and retention form between the abutments. The design and passive fit of NRC is critical to the success of a longspan FPD. This paper a case report of Pier abutment treated with FPD having Tenon-Mortise Connector.

Keywords: Non-rigid connectors; Tenon-Mortise connectors.

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