TY - BOOK AU - NANDA, PRASHANT TI - A COMPARATIVE EVALUTION OF THE EFFICACY OF CITRIC ACID, ETHYLENE DIAMINE TETRA ACETIC ACID (EDTA) AND TETRACYCLINE HYDROCHLORIDE AS ROOT BIOMODIFICATION AGENTS: AN IN VITRO SEM STUDY U1 - 617.6 PY - 2010/// CY - DELHI NCR PB - SGT UNIVERSITY GURUGRAM KW - PERIODONTOLOGY ER -