This patient came with an acute abscess. Disassembly and re-treat with long term Caoh. One year recall shows healing.
This case illustrates step-by step removal of two fiber posts during Re-treatment. Munce burs were used to drill out the fiber-posts. Notice how the fiber posts become invisible when dry and re-appear when wet.
This patient had sensitivity to cold after an RCT on a lower molar. Sensitivity persisted even after a month. Re-treatment revealed a missed distal canal/root that was still vital and hyperaemic. Here is a short lecture of the same case: