Why is there a price difference for root canal treatment for molar and premolar teeth?

Hi Yee Ham, I would say most patients take few days-weeks for proper healing of the tissues around the tooth. And even so, you should try not to use the tooth to eat hard food eg) nuts/ice etc. This is due to the fact that the tooth structure itself is already lessened, and forces overtime generates a wedging effect on the tooth, which may split it apart. Thus I would strongly advise you to avoid eating hard food as much as possible even after you have had your root canal treatment, as this would help to protect your tooth in the long run.

The symptoms of a failed root canal treatment (RCT) includes: pain returning to the tooth after RCT has been completed for a period of time swelling of the face or inside the mouth discharge around the treated tooth In your case, if you are experiencing pain after 4 years, it is possible that infection has returned to the tooth. You are recommended to visit your dentist/endodontist so that he/she can do a thorough examination of your tooth. If the tooth can be salvaged, a second RCT can be done.