Yes. Many times patients will feel a great amount of relief from swelling or pain following the first part of the root canal treatment has been completed. However, the second step of the root canal is critical to allow your dentist to make sure the infection has cleared, to ensure the tooth is clean and sealed to prevent any openings which may allow food particles, debris or bacteria to enter the tooth and cause further damage. The placement and [cementing] of the permanent crown is the final step to help protect the tooth and prevent future damage or even tooth loss. Completing the root canal process fully is the best way to prevent future, more costly dental emergencies and keep your smile as healthy and strong as possible.