Yeah, it's confusing, but it doesn't seem like the root taper changes in the apical area. The apical foramen is definitely larger than usual, but this is because of the resorption of the root, not zipping, I think.
not sure if there is zipping on 45
That's true. Now, I see separated instrument in the mesial root of #46.
overhang on 46 mesial
I can see rarefying osteitis, inadequate compaction(voids).
What do you think?
It would be helpful to discuss together before Dr.Hafez gives us the answer :)