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Doctor insights on: Nerve Pain After Root Canal

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Had 1st part root canal. That nite got several waves intense, felt like nerve pain. W/ nerve gone has is possible? Now feels uncomfortable, achy.

Had 1st part root canal. That nite got several waves intense, felt like nerve pain. W/ nerve gone has is possible? Now feels uncomfortable, achy.

Possible: If infection had spread into the bone surrounding the tooth, inflammation could cause pain. Symptoms should diminish gradually, a little less every day, until they are no longer bothering you. If symptoms do not subside, contact the Dentist or Endodontics Specialist for reevaluation. ...Read more

Nerve (Definition)

The brain and spinal cord communicates with what is occurring in the internal organs and limbs by nerve fibers where are like electrical wires with insulation (myelin) and the "copper" (axon). Within brain and spinal cord these nerves connect to other nerves via synapses on both axons and dendrites. A nerve can carry information regarding sensations, and ...Read more


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Had 1st part root canal. That night got episodes intense spontaneous pain-like nerve pain. How/why can this happen if nerve removed? Now tooth aches.

Had 1st part root canal. That night got episodes intense spontaneous pain-like nerve pain. How/why can this happen if nerve removed? Now tooth aches.

Other nerves: You've got nerves in the tissues surrounding your teeth... these nerves can be inflamed resulting in your discomfort. NSAIDs should help decrease your discomfort. ...Read more

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I have nerve pain with teeth that a root canal has been done on. A recent x-ray showed a white spot on the right side of my jaw where there is pain?

I have nerve pain with teeth that a root canal has been done on. A recent x-ray showed a white spot on the right side of my jaw where there is pain?

Oral surgeon: Hard to know what the "white spot" is without seeing the xray. See the endodonitist about persistent pain after root canal. See an oral surgeon about the xray finding. ...Read more

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Why might I have a blue bruise inside cheek and nerve pain throughout my right top row of teeth. Is the bruise associated with my needing a root canal? (Per dentist reccomendation)

Immediate treatment: Pain probably due to infected (abscessed) tooth. Please have root canal Rx done ASAP, before infection spreads further. Blue lesion may be bruise from spreading infection or from trauma. There is also a lesion known as a Blue Nevus that can be quite consequential. Please do not delay your treatment any further. ...Read more

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Is it safe to have root canal, if you already have a trigeminal neuralgia pain problem?

Is it safe to have root canal, if you already have a trigeminal neuralgia pain problem?

Root canal: While there is no relationship between the two, I actually have some patients who had exacerbation of the trigeminal neuralgia pain after root canal. I would discuss this with the neurologist and dentist. ...Read more

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Can unsuccessful root canal of the upper right pre-molar tooth cause trigeminal neuralgia?

Possible but Rare: Root canals are severing of neural tissue. Trigeminal neuralgia involves neural tissues of the fifth nerve gone bad, sending unwanted feedback of pain when stimulated. Most teeth with root canals don't cause this and there is never a direct cause and effect that ties trigeminal neuralgia to the root canal procedure. Some root canals do fail and cause bone cavitations and residual pain. ...Read more

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What is a 'hot' nerve in a tooth that needs root canal?

What is a 'hot' nerve in a tooth that needs root canal?

Inflammed or infecte: Also may mean sensitivity to heat or cold, which is indicative of a possible root canal problem. ...Read more

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I have a deep filling that is touching a nerve. Are there any alternatives to root canal?

3 options: 1. Fix it
2. Pull it
or 3. Live with the pain

unfortunately, a root canal is the only treatment option allowing you to keep the tooth (painlessly) for the rest of your life. ...Read more

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How much time should I wait after getting the nerve removed in my tooth to finish my root canal?

How much time should I wait after getting the nerve removed in my tooth to finish my root canal?

Varies: Many root canals can be completed in one visit. When there is swelling usually the root is not sealed until the infection has subsided ...Read more

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Is it okay if the nerve is not fully removed after root canal?

Is it okay if the nerve is not fully removed after root canal?

Depends where it is: Dentists attempt to remove the entire nerve tissue. If any nerve tissue remains in the coronal portion (closest to the mouth), that is less critical than leaving tissue in the root tip area. If tissue is left in the root tip area, it has the potential to cause the root canal to fail and you would need to have the tooth retreated or extracted. ...Read more

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Root canal surgery! Afraid of getting the nerve hit?

Do not fear.: 99% of root canal procedures are painless. The local anesthetics used today are very effective at eliminating pain and patients never feel anything. The only exception is if you have a severe infection with swelling and most dentists will treat you with antibiotic prior to the procedure to insure you will be comfortable during the procedure. ...Read more

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Why do I feel discomfort after root canal therapy if the nerve is gone?

Why do I feel discomfort after root canal therapy if the nerve is gone?

Phantom pain: When nerves are injured there is sometime a condition where there is "memory" and if the nerve is gone, the rest of the nervous system remembers the nerve and there is the sensation of pain. This is a complex and poorly understood conditon. It happens with loss of limb as well. It also could be inflammation in the root canal itself. Discuss with your dentist or endodontist. ...Read more

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I have pain when biting down, root canal (dental nerve removed). What should I do?

I have pain when biting down, root canal (dental nerve removed). What should I do?

See a dentist: Bite may be high, tooth may be cracked, or you may have a recurrent infection. So hard to tell over the internet. ...Read more

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How to calm hypersensitive nerves after an oral surgery with root canal two months out?

Proper evaluation: The first step in treating hypersensitivity is to determine if the condition is reversible or irreversible. Reversible conditions can be treated with various methods like topical Fluoride applications, etc. Irreversible conditions require root canal therapy. I suggest you return to your dentist to have a detailed examination and diagnosis. Good luck. ...Read more

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Infected nerve endings on a tooth. Will that heal itself or will you have to get the root canal?

Tooth Nerves: Unfortunately, infected tooth nerves will not heal themselves. When the nerves are infected it usually means that the nerve is dead or dieing. You can control the infection for a short time with a series of antibiotics. However, this will only control the infection temporarily. You will either need a root canal or you will need to remove your tooth. I would try to save your tooth if you can. ...Read more

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1st part root canal, nerve removal 2 weeks ago. Lingering discomfort when put pressure on tooth. Concerned will stay. How long is normal? Pull tooth?

Sensitivity: If you are still uncomfortable call the Dentist or (hopefully) Endodontist (Specialist) that is treating you and report your concerns. Without examination we can't adequately diagnose your situation.

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Dr. Jeffrey Cohen
1,918 Doctors shared insights

Neuralgia (Definition)

Can also be described as neuropathic pain or "nerve pain" which can occur anywhere in the body. It can also be due to many disorders such as direct nerve damage, diabetes, ...Read more


Dr. Janice Alexander
842 Doctors shared insights

Nerve Pain (Definition)

Neuralgia is a sharp, shocking pain that follows the path of a nerve and is due to irritation or ...Read more