Evaluate The Retention of Conventional Cast Gold Post-And-Cores Compared to CAD/CAM Fabricated Printed, Milled Titanium Post-And-Core and Milled Zirconia Post-and-Cores Based on Load–An Invitro Study

INTRODUCTION Cast post-and-core (CPC) is commonly used to restore endodontically treated teeth with extensive coronal structural loss. Retention of CPC is a fundamental factor influencing definitive restoration longevity and success. Length, shape, diameter, and post surface, as well as the type of cement used, are associated factors that may affect CPC retention and stability [1]. Custom CPC is documented to have superior adaptation and fit to the radicular post space walls when compared to prefabricated post [2].