How do self etch systems [acidic hydrophilic primers] diffuse through Super Seal®?
The entire physiological process is extremely dynamic and occurs quite rapidly once set in motion. Once the CAOX nano-crystals are formed within the peritubular dentin [intratubular zone] following Super Seal® placement, fluid flow is extremely diminished. However, even though the nano-crystals fill in the tubules, think of the blockage as a function of pouring water into a glass of sand. The water will still pass between the crystals—although it is a very slow flow through the mass of sand—any particle that is larger than the nano-crystals will be stopped due to its size difference. This is why Super Seal® works clinically, as the fluid flow slows to the point of negating the patient’s feeling of dentin sensitivity. Once Super Seal® is applied and has chelated to the peritubular complex; the acidic hydrophilic primer is then placed directly onto the cavity surface. These hydrophilic agents, like ethanol or acetone are drawn towards the very wet dentin substrate and in so doing, wi
