Thursday, May 28, 2015

RETENTION AND RESISTANCE

Retention and resistance


                    
                            RETENTION AND RESISTANCE


         Retention prevents removal of the restoration along the path of insertion or long axis of the tooth preparation.

         Resistance prevents dislodgement of the restoration by forces directed in an apical or oblique direction and prevents any movement of the restoration under occlusal forces.                            

          Retention and resistance are interrelated and often inseparable qualities.

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