The pre-op pa showed a large pa lesion associated with 25. The less centered canal at the apical third indicating the presence of another canal. That is where all the bacteria are harboring. Since there is no post or crown on this tooth, retreating this tooth may not be a difficult task.
How would a periapical lesion on this upper left second premolar heal? If one can get to the apical third to remove the microbes. Upon removal of gutta percha, buccal canal was instrumented to working length, which is 19mm. Palatal canal was detected. It was a (1-2) canal configuration, which the bifurcation occuring at 15mm.
I have cleaned and shaped the palatal canal, placed in CaOH and wait for healing to take place.
