Root canal treatment complications - Coronal leakage.
What is it?
In short, coronal leakage refers to the phenomenon where bacteria and other contaminates find a way to seep past a tooth's dental restoration.
Ultimately, this recontamination of the tooth's interior can result in the failure of the root canal treatment it's received. (Our video "What's the purpose of root canal treatment?" explains why.)
How is it prevented?
After viewing our video, you'll understand why the long-term success of root canal therapy depends on more than just the expertise with which the tooth's work has been performed.
It's also dependent upon the seal that's created by the dental restoration that's placed on the tooth after its procedure has been completed.
FYI: The restoration that's placed after root canal treatment needs to be one that can create a substantial barrier to any contaminates trying to re-enter the tooth. It also needs to be a durable enough that it can be expected to maintain this seal over the long-haul.
In regards to preventing coronal leakage, dental crowns have a reputation for creating a lasting seal. Dental fillings can too in some instances. You'll simply have to rely on your dentist's judgment about what type of restoration is best for your situation.
FYI: You'll also need to quiz your dentist about the time frame in which your tooth's permanent restoration should be placed.
At the completion of your tooth's root canal treatment, your dentist will probably just place a temporary filling. Over time, this restoration and its seal will deteriorate.
Your goal should be to have it replaced with a permanent restoration (filling or crown) long before the complication of coronal leakage becomes an issue.