Objective: The purpose of this study was to investigate the histological response to delib-erate perforation repaired using amalgam or MTA either immediately or with delay on cats’ molars. Materials and Methods: Twenty-eight molar teeth from four cats were used in this ex-perimental randomized study. After preparing the access cavity. the floor of pulp cham-bers were deliberately perf... https://fitnessgravesyardes.shop/product-category/receiver-kit/