Eventually I will track this also.  This case was done in 5/09.  In future I will link to original post also.  This tooth had no clinical signs of fracture.  Probings WNL.  Draining buccal fistula and pain.  PA shows large lesion on buccal root(s).  Notes say overfill on MB2 1mm actual about .5mm.  I one stepped this, which I never do on a necrotic tooth, not sure why I did here.  Also this is before I used EDTA or CHX.

Obviously this had a separate MB2.  We choose to extract this tooth

05/09

10/9/12

MB2 was a little overfilled