Exposed Nerve in a Broken Tooth: What to Do Until You Can See a Dentist

A broken tooth that exposes the nerve can cause intense pain and sensitivity. The nerve sits inside the tooth pulp and becomes extremely sensitive when the protective enamel and dentin are damaged. Until a dentist can evaluate the tooth, the main goal is to protect the nerve from irritation, bacteria, and further injury.

What Happens When a Tooth Breaks and the Nerve Is Exposed?

An exposed nerve usually occurs when a fracture or deep cavity reaches the pulp inside the tooth. The pulp contains nerves and blood vessels, which is why the pain can be sharp and immediate.

When the nerve becomes exposed, several things can happen:

• Severe pain when air touches the tooth
• Sharp sensitivity to cold, heat, or sweets
• Pain when biting or chewing
• Visible damage such as a cracked or broken tooth

The exposed pulp is also vulnerable to bacteria. Without treatment, infection can develop and spread deeper into the tooth.

How to Protect an Exposed Tooth Nerve at Home (Temporary Measures)

Home care cannot repair a broken tooth or heal an exposed nerve. However, certain steps can help protect the nerve and reduce irritation until a dentist can treat the tooth.

Cover the Area if Possible

If the broken area is sharp or visibly open, covering it can help shield the nerve. Temporary options may include:

• Dental wax used for braces
• Temporary dental cement from a pharmacy
• Sugar-free chewing gum placed gently over the area

These materials create a temporary barrier that helps protect the nerve from air and food.

Keep the Area Clean

Food and bacteria can easily enter a fractured tooth. To reduce contamination:

• Rinse gently with warm salt water
• Brush the surrounding teeth carefully
• Avoid aggressive rinsing or poking the tooth

Saltwater rinses help reduce bacteria and keep the area cleaner until treatment.

Avoid Pressure on the Tooth

Chewing on a damaged tooth can worsen the fracture and increase pain. Try to:

• Chew on the opposite side of the mouth
• Avoid hard or crunchy foods
• Avoid sticky foods that may pull on the tooth

Reducing pressure helps prevent additional damage to the tooth structure.

Protect the Tooth From Temperature

An exposed nerve reacts strongly to temperature changes.

To reduce sensitivity:

• Avoid very hot or very cold foods
• Drink beverages at room temperature
• Avoid breathing cold air directly onto the tooth

These steps can help reduce painful nerve stimulation.

What Not to Do With an Exposed Tooth Nerve

Certain home remedies may worsen the problem or increase the risk of infection. Avoid the following:

• Placing aspirin directly on the tooth or gum
• Using sharp objects to clean inside the fracture
• Ignoring severe or persistent pain
• Attempting to file or reshape the broken tooth

Emergency Dental Care at Power Road Dental Care

A broken tooth with an exposed nerve can be extremely painful and should be evaluated as soon as possible. Prompt dental care helps reduce discomfort and prevents the problem from worsening.

At Power Road Dental Care, we understand that dental emergencies can happen at any time and can be a source of intense stress. Our team works to see emergency patients as quickly as possible so you can get the care you need without unnecessary delays.

Emergency Dentist in Mesa, AZ

If you are experiencing a dental emergency, call (480) 664-1438 or visit us at 2500 South Power Road, Suite 102, Mesa, AZ. If you are a registered patient experiencing a dental emergency outside regular business hours, we will do our best to accommodate you. 

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