Retrograde Filling Materials: A Retrospective Success-Failure Study of Amalgam, EBA and IRM

By Dorn SO, Gartner AH

Date: 01/1990
Journal: JOE


To compare success rates of teeth with three different retrofills.


-N=488 apicoectomy cases for 2 distinct private practicing endodontic offices.

-recall period of 6 months-10yrs.

-examined super EBA, IRM, and zinc free amalgam as retrofills.

success: healed lesion is complete regeneration of PDL.



-Super EBA: 95%

-IRM: 91%

-amalgam: 75%

Clinical Significance:

Super EBA and IRM are superior retrofill materials vs. amalgam