Well-Prep EDTA Root Canal Cleaner contains Ethylenediaminetetraacetic acid(EDTA) as a chelating agent allows efficient cleaning and easier preparation of root canal. Well-Prep improves the efficiency in injection into root canals by a special lubricant. When urea-peroxide in Well-Prep reacts with sodium hypochlorite, pulp debris is lifted out the canal by the bubbling effect. Well-Prep encourages decalcification of dentin and antibacterial effect.