A SIMPLE WAY TO FABRICATE A FIXED PROSTHESIS WITH A NON - RIGID CONNECTOR: A CASE REPORT

Dr. Shanmuga Priya SV; Dr. Vidya Sankari; Dr. Ashna; Dr.Sonali

Volume : VIII, Issue : II, February - 2019

A SIMPLE WAY TO FABRICATE A FIXED PROSTHESIS WITH A NON - RIGID CONNECTOR: A CASE REPORT

Dr. Shanmuga Priya Sv, Dr. Vidya Sankari, Dr. Ashna, Dr. Sonali

Abstract :

This case report describes an innovative and cost effective way of faicating a non–rigid connector (NRC) for a fixed dental prosthesis with a pier abutment. The occlusal forces applied to a fixed partial denture are transmitted to the supporting structures through the pontic, connectors and retainer. Rigid connectors between pontics and retainers are preferred for faicating most fixed partial dentures, as they provide desirable strength and stability to the prosthesis. Fixed partial denture with all rigid connectors is less than an ideal treatment plan for a 5 unit fixed partial denture involving a pier abutment. As the pier abutment act as a fulcrum, abutment teeth move in divergent directions creating stresses and cause failure of the weaker retainer. Thus, the use of a non–rigid connector (NRC) in case of pier abutment is recommended. It transfers shear stresses to the supporting bone & permits abutments to move independently