Background: In order to ensure sufficient resistance against functional forces for dentin. which is severely weakened by excessive material loss in single-root single-canal teeth with previous root canal treatment. maximum retention and resistance must be the target. The main purpose of this study is to evaluate the shear rupture resistance of the chosen three kinds of posts placed in... https://safeersappliancers.shop/product-category/bosch-bic630nb1b-14-cm-black-glass-front-push-to-open-warming-drawer/