Etidronate as A Weak Chelating Agent on Root Canal Dentin: An Update Review
ZE05-ZE09
Correspondence
Dr. Ahmed Mohammed Hassan,
Assistant Professor, Department of Restorative Dental Science, Alfarabi Colleges for Dentistry and Nursing, Bahr Alarab St,
KSA, Riyadh, Alyarmook, Saudi Arabia.
E-mail: ahmed.altabbakh@alfarabi.edu.sa
Successful root canal treatment depends on proper biomechanical cleaning and shaping of root canal system followed by three-dimensional obturation. Irrigation solutions and chelating agents are used during root canal treatment to assist in smear layer removal and enhanced bonding with sealer. Different chelating agents are used in combination with irrigation solutions such as Ethylenediaminetetraacetic Acid (EDTA), Citric Acid (CA), mixture of doxycycline, citric acid and a detergent {Tween 80 (MTAD)}, chitosan, maleic acid and etidronate. Etidronate is a weak biocompatible chelating agent effective in smear layer removal with less harmful erosive effects on root canal dentin, compared with other strong chelating agents like EDTA and citric acid. Etidronate can be mixed with Sodium Hypochlorite (NaOCl) without interfering with its antimicrobial or dissolving activity while EDTA retains its calcium-complex when it is mixed with NaOCl reducing its tissue dissolving capacity.