Swelling after RCT is mainly caused by (Being asked as: What is the most frequent cause of pain which occurs several days after obturation?, too):
A. Entrapped Bacteria, or the presence of bacteria in the periapical region.
B. Underfilling the root canal system
C. Overfilled root canal
A. Entrapped Bacteria, or the presence of bacteria in the periapical region.
B. Underfilling the root canal system
C. Overfilled root canal