All clinical cases/Cases by Ilya Mer/Endodontics/failure/missed MB2/Retreatment/Surgical endodontics 2015 October 30, 2015October 30, 2015 No changes 2,5 years after NSRtx (by Ilya Mer) This patient has been referred 2 at June 2013 for retreatment of 2.7 before ortho tx. Huge PAL in buccal roots projection but there were not any symptoms. Old restoration removed and new build up set. Ready for canal work Disinfection procedures were completed in two visits. Missed MB2 has had a separated apical foramina. Overfill of AH+ in MB2 Two and a half years later patient completed ortho Tx and came for follow up with a new CBCT. The same picture of PAL was seen – no changes at all and no symptoms btw. In case that NSTx is ineffective (just elegant way not to call it a failure)) surgical approach is the the best option. Retroprep and filling with MTA. The causative root was MB but DB was done too. Now see him two years later.