The objective of a root canal treatment is the removal of bacteria and decayed tissue from the pulp cavity. Unfortunately this is not always successful! Anatomical characteristics of the root canal system that are very difficult to treat with conventional technology can be one of the reasons for this. Besides very stubborn germs, repeat infection due to leaky fillings or the restoration can also be responsible for symptoms to flare up. But occasionally, even root canal treated teeth with no complaints (!) need to be retreated. This can occur with chronic bacterial infections in the root ends for example. Or when the root canal filling is radiologically insufficient in the case of a restoration with tooth replacement, meaning it’s too short or leaking for example.
The existing root canal filling must be removed in each one of these cases. By using new methods, the root canal system can be precisely cleaned and disinfected again. This process is described as Root Canal Retreatment.
By the way – most root canal retreatments can be performed without anaesthesia and are pain-free!