Removal of the Previous Root Canal Filling Material for Retreatment: Implications and Techniques

Adequate removal of the previous filling material may be pivotal to a favorable outcome root canal retreatment teeth with post-treatment periodontitis in order permit access irrigants and medicaments persistent bacteria. However, even recent technological advances, including introduction specially designed instruments, no technique has been shown predictably promote complete removal. Supplementary approaches used after chemomechanical preparation, use finishing ultrasonics laser, have promising results enhancing cleaning disinfection. This narrative review addresses importance implications maximal during discusses effectiveness different techniques supplementary for this purpose.