Introduction The irrigating solutions used in endodontic therapy have different pH values and different chemical properties that have sometimes been found to adversely affect the physical and chemical characteristics of reparing materials. These materials are used mainly in areas of inflamed tissue. with a lower pH. Aim of the study To evaluate the changes in the hardness of two denta... https://www.bekindtopets.com/save-now-Aqua-Pure-3MFF101-Full-Flow-Drinking-Water-System-Replacement-Cartridge-flash-choice/