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Can fillings cause nerve damage?

Author

Olivia House

Updated on March 02, 2026

Can fillings cause nerve damage?

An irritated nerve

Short-term tooth sensitivity after a filling usually occurs because the filling procedure has aggravated or caused inflammation in the nerve inside the tooth. Usually, the tooth's outer layers — the enamel and cementum — protect the nerve from exposure.

Similarly, you may ask, can dental nerve damage heal?

The nerves (alveolar and lingual) supplying sensation to the tongue, lower lip and chin, may be injured as a result of surgical treatments to the mouth and face, including surgery to remove lower wisdom teeth. The vast majority (90%) of these injuries are temporary and get better within eight weeks.

Subsequently, question is, how long does nerve pain last after tooth filling? Sensitivity from a tooth filling should go away within two to four weeks. If the sensitivity doesn't seem to be getting any better during that time, or it lasts for longer than four weeks, contact your dentist.

Likewise, people ask, how can you tell if a filling is bad?

Common signs that your fillings are compromised include:

  1. The Contours of Your Teeth Feel “Off” Our tongues are finely tuned to any disturbances in your teeth.
  2. Increased Sensitivity. Our enamel insulates a tooth's inner nerves from drastic temperature changes.
  3. Discomfort When Eating.
  4. Other Considerations.

What happens if a cavity hits a nerve?

If you have a cavity that has reached the nerve tissue, you may experience some or all of the following symptoms: Toothache when pressure (such as chewing) is applied to the tooth. Tooth sensitivity to heat or cold. Discoloration of the tooth.

What does dental nerve damage feel like?

Inferior alveolar nerve damage could cause numbness or pain in the chin, lips, and gums, as well as a tingling sensation or a burning ache.

What are the signs of permanent nerve damage from a tooth?

Symptoms commonly experienced after the inferior alveolar nerve has been injured include:
  • Numbness or pain in the chin, lips, and gums;
  • A tingling or electrical shock sensation in the chin, lips, and gums;
  • A burning pain in the chin, lips, and gums;
  • Drooling;
  • Impaired speech.

Can you sue your dentist for nerve damage?

Can I sue my dentist? Yes, but only when you have suffered a permanent and significant injury as a result of dental negligence.

How long does nerve damage take to heal?

Regeneration time depends on how seriously your nerve was injured and the type of injury that you sustained. If your nerve is bruised or traumatized but is not cut, it should recover over 6-12 weeks. A nerve that is cut will grow at 1mm per day, after about a 4 week period of 'rest' following your injury.

Can dentist hit a nerve when doing filling?

An irritated nerve

Short-term tooth sensitivity after a filling usually occurs because the filling procedure has aggravated or caused inflammation in the nerve inside the tooth. Usually, the tooth's outer layers — the enamel and cementum — protect the nerve from exposure.

How do you treat nerve damage?

How Are Nerve Pain and Nerve Damage Treated?
  1. Regulating blood sugar levels for people with diabetes.
  2. Correcting nutritional deficiencies.
  3. Changing medications when drugs are causing nerve damage.
  4. Physical therapy or surgery to address compression or trauma to nerves.
  5. Medications to treat autoimmune conditions.

How do you treat mental nerve damage?

Treatments for paresthesia include removal of the cause and conservative (promotion of nerve regeneration) or surgical (nerve repair) procedures [15]. Antibiotics, nonsteroidal anti-inflammatory drugs, corticosteroids, proteolytic enzymes, and vitamin B are the drugs which can be used in addition to therapy [16].

How do you get rid of nerve pain in your tooth?

Short-Term Fixes. You can reduce tooth nerve pain by using desensitizing toothpaste, brushing with a soft-bristled brush twice a day and rinsing with a fluoride mouthwash once a day. If you find that brushing with a toothpaste for sensitive teeth doesn't provide immediate relief, don't despair.

Can a Dentist mess up a filling?

TYPES OF PROBLEMS THAT CAN OCCUR FROM POOR DENTAL FILLINGS

The failure by a dentist to adequately carry out a filling can lead to ongoing tooth aches and pain.

Why does my teeth still hurt after a filling?

Tooth sensitivity following placement of a filling is fairly common. A tooth may be sensitive to pressure, air, sweet foods, or temperature. Usually, the sensitivity resolves on its own within a few weeks. During this time, avoid those things that are causing the sensitivity.

Why does my tooth hurt after a deep filling?

The deeper the cavity, the more inflammation, and sensitivity can be expected after the placement of a new filling. A patient can experience dental discomfort as a result which can last for a few days or even weeks. Most teeth do recover from this type of dental discomfort with time.

Had a cavity filled and now it hurts when I chew?

Tooth sensitivity: A tooth that has just had a filling placed will be more sensitive to hot foods and cold foods, air temperature, and the pressure of biting. This type of tooth pain after filling a cavity should resolve within a few weeks. If not, contact your dentist.

How many times can a filling be replaced?

How many times can you get a filling replaced? It depends on the type of material used for filling. If you have amalgam fillings – made of a mixture of metals – they might last for about 15 years or more. The composite filling might be more durable, but they can last not more than 10 – 12 years.

How often should fillings be replaced?

This is one of the reasons we recommend a dental checkup every six months. If you need a tooth filling or a replacement filling, different filling choices vary in price. Gold fillings and porcelain fillings are more expensive options that last longer -- typically around 20 years.

What happens when a filling fails?

One of the more important purposes of a tooth filling is to stop bacteria from re-infecting your tooth after your dentist has cleared away the decay. If your filling fails, then not only will the discomfort of your tooth decay return, but the condition can also worsen, leading to a need for more extensive treatment.

Does replacing a filling hurt?

It is taken away so that the replacement filling can be inserted and secured. To do this, the dentist has to administer an anesthetic, so that the patient cannot feel any part of the procedure. There should be no pain involved in getting a filling, though the sensation of the drill is likely to feel very strange.

What to expect after a deep filling?

Signs the Tooth Should Settle

A short lasting hypersensitivity reaction to heat, cold and sometimes pressure, which subsides once the stimulus is removed, is normal following a deep filling. This may last for several weeks. A gradual lessening of the severity of the reaction is a sign that the pulp is healing.

Does a throbbing tooth mean infection?

Throbbing tooth pain is a sign that you might have tooth damage. Tooth decay or a cavity can give you a toothache. Throbbing tooth pain can also happen if there is an infection in the tooth or in the gums surrounding it. Toothaches are typically caused by an infection or inflammation in the tooth.

How do you know if you need a root canal after a filling?

The sooner your tooth can be treated, the better the outcome will likely be.
  1. Persistent pain. Persistent tooth pain is one of the signs that you may need a root canal.
  2. Sensitivity to heat and cold.
  3. Tooth discoloration.
  4. Swollen gums.
  5. Pain when you eat or touch the tooth.
  6. A chipped or cracked tooth.
  7. Tooth mobility.

Does Sensodyne work on fillings?

It is a good idea to use a sensitivity protection toothpaste (i.e., Fluoridex (sold in office), Sensodyne or Crest for Sensitivity) after fillings are completed. Refrain from using whitening products and toothpaste as the will increase sensitivity after fillings are completed.

What happens when your cavity is too deep?

Leaving cavities alone will allow bacteria to penetrate deeper and deeper into the tooth, letting the cavity increase in size. Eventually, the cavity could grow large enough to crack the tooth. The bigger the cavity, the bigger the problems associated with it will be.

How long does it take for a cavity to hit a nerve?

A person who can't brush or floss, who accumulates acid-producing bacteria around the teeth, who does not use fluoride or oral calcium products, and who has stomach acid in the mouth from GERD or bulimia can grow cavities that invade the dental nerve in as little as three or six months.

When a filling is too close to the nerve?

If the filling is too close to the nerve, it will get infected slowly. Dentists can't predict the time frame for the tooth to become infected. If infected, you may experience a throbbing pain or a dental abscess.

Can you go your whole life without a cavity?

Few people make it through life without at least one cavity. Cavities are the result of tooth decay, and everyone is at some risk. The enamel dissolves, creating a little hole or fissure in your tooth, which is called a cavity.

What can kill a cavity?

Can you get rid of cavities at home?
  1. Oil pulling. Oil pulling originated in an ancient system of alternative medicine called Ayurveda.
  2. Aloe vera. Aloe vera tooth gel may help to fight off bacteria that cause cavities.
  3. Avoid phytic acid.
  4. Vitamin D.
  5. Avoid sugary foods and drinks.
  6. Eat licorice root.
  7. Sugar-free gum.

Does a deep cavity hurt?

Cavities that cause deeper damage in the tooth can affect the nerve, causing intense pain. Sometimes, cavities can grow so large that bacteria can get into the gums, or even the bone underneath the teeth. This can cause intense, unrelenting pain, as well as serious infections.

What happens if you don't fix cavity?

Once your tooth is invaded, if you don't fix it, some hard times in the dentist chair await. The decay will get into the nerve of the tooth. Eventually, that nerve will die. Then, the choices are a root canal, which removes the dead nerve, or removal of the tooth.

How do I know if my cavity is deep?

If you have a cavity and do not visit the dentist for a filling, your tooth will continue to decay and cause a deeper hole.

These symptoms include:

  1. A sensitive tooth, especially when eating or drinking something hot or cold.
  2. A toothache when pressure is applied to the tooth.
  3. Tooth discoloration.
  4. Gum swelling and tenderness.

Can I wait a month to fill a cavity?

So if you have a cavity that needs a filling, don't delay treatment. The decay can continue to develop and cause additional damage to a tooth. You can end up needing something much more extensive, not to mention expensive, such as a root canal if you wait too long to have the decay addressed.