1 Foreground code is running, interrupts are enabled. 2  Interrupt event sends an interrupt request to the CPU. 3  After completing the current instruction(s), the CPU begins the interrupt response. 4  automatically saves current program counter. 5  automatically saves some status (depending on CPU).
Impregnator or penetrating sealers are designed to penetrate below the. surface of the stone and either deposit solid particles in the pores of the stone, or coat the individual minerals below the surface. Penetrating. sealers work by restricting water, oil and dirt from entering the stone or tile.
Download PDF. The present invention is an endodontic sealer paste and an endodontic core material for root canal filling, retrofilling, and perforation repair. The endodontic sealer paste contains a dry poly(carboxylic acid), zinc oxide, and an aliphatic acid. The endodontic core material contains a pliant polymer, a dry poly(carboxylic acid), and zinc oxide.