6 Answers

The biggest pain is the expense.

They freeze you so you can't feel a thing.

I'm not going to pander to the sympathizers.  Yes it's painful, but it also depends on how deep and in the nerve has any live left it it.  I had it done and it was  excruciating, the nerve was still alive.  The dentist had to stop the procedure and place cotton balls in the canal to poison and kill the nerve before he could continue. this process of killing off the nerve took 2 weeks.  Then he was able to proceed without much discomfort.  although, i developed an infection years later and had to have surgery to clean it all out. 

The message here is, get a good dentist, make sure the the tooth needs a root canal, if you have excruciating pain during procedure then the nerve is still alive and root canal was not needed in the first place.

Probably the same risks as any other procedure of a similar nature.

If you have a competent dentist, there shouldn't be any problems. I've had many done; no problems.

Not at all you don't feel pain during the procedure. After root canal you will feel unbearable pain.

which will subside with medicines; ask for the prescription from your dentist.