I need a real doctor to answer this, i had a root cancal?

Question

i had a rootcanal done last year around this time and now my tooth
the one i had the job done on hurts again , when cold hits and hot but it hurts more with cold, why does it hurt isnt my tooth suppose to be dead? do i have to get the job done again>?

Answer 1

I'm a dentist.

It is very unlikely that the root canal'ed tooth is causing your symptoms.

The only conceivable way this could occur is if the doctor performing the root canal missed a canal. Even so, in such cases, the tooth would abscess and cause significant tenderness and perhaps throbbing pain rather than cause symptoms of pulpitis (which is what you described). Generally, abscessed teeth feel better with cold (although exceptions can and do exist).

Moreover, odds are in favor of the root canal being successful (they are 95% successful) and another tooth being the source of your symptoms.

Go see your doctor, who can test the teeth and determine the source.

Answer 2

I'm not a doctor, but have worked in dentistry all my life. So let me try to help you with this. The nerve has been removed so the tooth is dead. You would expect the tooth to have no feeling what so ever, but that is not the case at all. There are ligaments and tissue that have nerve endings that transmit and send impulses all around the tooth. So if something is wrong with the tooth or the surrounding area you will "feel" pain.

There are several things that could be causing this pain to hot and cold. I would like to think that it's decay along the gum line of the tooth irritating the tissue, but I don't think thats the problem.

Did you finish the root canal, having a build up material and a crown placed? Or did you just have the canals filled and not go back for the crown? If you didn't have a permanent filling and a crown placed, then the root canal treatment has probably failed due to recurrent decay. The temporary filling placed on top of a root canal tooth is just that, temporary. You should have been instructed to come back for a permanent filling which is a build up for a crown prep about 2 to 3 weeks after completion of the root canal. This time is allowed to make sure the tooth is settled down and stable enough for a crown. If you neglected to do this final step in the procedure, then more than likely the temporary filling has leaked or broken out and new decay has reached the fillings in the pulp chambers causing the tooth to re-abscess. This is usually what happens and the pain is symptomatic in your case. Another indication of the tooth reabscessing is if you feel it first when you touch your teeth together. That would mean an apical abscess causing pressure to build at the root of the tooth making it taller in your mouth, also it could feel loose if this has been going on for awhile and caused bone loss. I hope this isn't it, but it does happen when the treatment isn't finished.

Either way, call your dentist and let them check it with an x ray. That is the quickest way to determine what's going on with this tooth. Hopefully it won't be as severe as I've presented here. Hope all works out for you, good luck!

Answer 3

Sometimes a tooth can have more than 4 canals and the dentist may not have seen it. Also, yes some root canals have to be redone. It is not common, but also not unusual. Good luck and I am sorry to hear about your problem as they can be expensive and painful. Make sure you go to a specialist and they make sure they treated all the canals.

Answer 4

Based on experience, chances are that you are feeling the cold sensitivity in a tooth adjacent to the one that had the root canal. See the dentist who performed the root canal for you and have him check things out. It would be very unusual for a root-canal treated tooth to be cold sensitive, even if a canal was missed during the treatment. It is far more common for a failing root canal to be spontaneously painful rather than painful to cold. It takes a living tooth to do that. Go see your dentist A.S.A.P. I hope you feel better soon.

Answer 5

I am not a doctor but I have had several root canals done.....Could be there is some gum line decay going on with that tooth. Even though your tooth is dead, the gum area around the tooth can be very sensitive to many things, especially if there is something causing it irritation.........

Hope you feel better........

Answer 6

Did you have a crown done after the root canal? The best thing to do is to let a dentist check it out.

Answer 7

If you had a root canal the nerve should be completely gone. It shouldn't hurt at all. I'd ask the dentist that did the work about it. Then go in for a second opinion.

Answer 8

When you have a Root Canal, the nerve is removed, it shouldn't hurt at all