I have an extremely sensitive mouth and have had a ton of dental work done. I do tend to put it off as long as possible and get Best if kept off the board for it when I finally go in. Last time when I had a back tooth broken and was really hurting, he asked me why I am waiting so long to come in. Had to know that tooth was going to break. Said I needed a root canal. Then the tears came. And I told him the truth. I said "Doctor. You are a good dentist. I have been going to you for 10 years now. Your work is excellent. But you know I have a very low threshold for oral pain and every time I have had to have a root canal (I've had 4) you have told me to take tylenol even though I tell you it is not going to work. Once the novacaine wears off, I am in serious agony. I have even thought of taking my business elsewhere, because you refuse to control my pain. The thought of another root canal makes me want to run out of here" He sits back and says that most patients of his have no serious issues with pain during a root canal, they find it a relief in fact. I told him that it HURTS me more than I can bear and I am just going to pull the tooth than to go through this again. Asked him to refer me to an oral surgeon. He put his hand on my shoulder, told me to wait. Came back with a blister pack of Vicodin ES. Asked me to let him do the root canal as he did not want me to lose a tooth because of this.

Why not explain how painful it is to the dentist? Make him listen!

One thing that does kind of bother me is that you said something about going through WDs and you were hoping to get something from your dentist. If that is really the reason, then maybe he really shouldn't be writing you out a script? No flames please. If you are in pain, then I would hope he would give you what you need. But if it is just WDs, than you can't expect him to write a narcotic out for something that could be taken care of with an OTC med or a prescription NSAID.