Hello, RCT if done correctly is a permanent solution ... Provided you go for the crown after  it and maintain good oral hygiene to avoid further infection. Thanks.

Root canal is definitive treatment option ..its only treatment to save your painful carious tooth ..Normal less chances of reinfection ..but no one can give guaranty that reinfection can not occur

Root canal treatment is a permanent solution to teeth infection and it is a modality which makes it possible for saving even the most damaged teeth from extraction. Root canal treatment does not need reputation unless there is Re infection due to some other cause. And there is no logical basis of comparing root canal treatment with extraction, because as mentioned previously, root canal treatment is the only modality which makes it possible to save the extraction of the teeth. Regards