RC-Prep Root Canal Preparation Cream is the number one choice of dental professionals for chemo-mechanical preparation of root canals. Over 30 years of clinical use and numerous publications demonstrate the clinical efficacy of RC-Prep. RC-Prep's endodontic preparation cream unique formulation of glycol, urea peroxide and EDTA in a special water-soluble base helps remove calcification and lubricates the canal to permit more efficient instrumentation. Whether you prefer finger or engine- driven instruments, RC-Prep allows reamers and files to move easily without binding. RC-Prep is also excellent for use with apex locators, as it permits consistently reliable readings. 8 oz Jar.