Cracked Tooth: Symptoms, Causes, Treatment Options & When to See a Dentist

TL;DR

• A cracked tooth won’t heal on its own, and the crack typically gets worse with every bite.
• The most common signs are sharp pain when biting, sudden sensitivity to hot or cold, and pain that comes and goes without an obvious cause.
• Grinding, biting hard foods, large fillings, and aging are the most frequent causes of tooth cracking.
• Treatment ranges from bonding or a crown for minor cracks to a root canal or extraction for severe ones. The sooner you act, the more options you have.
• Untreated cracks are one of the leading causes of tooth loss in adults over 40, so early diagnosis is important.

What Does a Cracked Tooth Mean for Your Dental Health?

A cracked tooth is a fracture in the hard outer structure of a tooth. It can run through the enamel only, extend into the dentin, or reach the pulp and root. According to research, cracked tooth syndrome is one of the leading causes of tooth loss in adults. The good news is that most cracked teeth are treatable, especially when caught early. The right treatment, often dental crowns or a combination of procedures, depends on how deep the crack has gone and which part of the tooth it affects. The longer a crack is left alone, the fewer options remain.

What Are the Symptoms of a Cracked Tooth?

Cracked tooth symptoms can be easy to miss because they’re often intermittent. The tooth may hurt only when you bite down in a specific spot, or feel fine for days before flaring up again. The most common signs of a cracked tooth include:

• Sharp pain when biting or chewing, especially on release of pressure
• Sudden sensitivity to hot or cold temperatures that lingers for a few seconds
• Intermittent aching with no obvious cause, sometimes mistaken for a sinus issue
• Swelling or tenderness in the gum near the affected tooth
• Pain that’s hard to pinpoint to a single tooth

Dr. Logan Connor at University Ave Dental notes that the symptoms of a cracked tooth often mimic those of a cavity or gum problem, which is why a clinical exam, including a bite test and transillumination, is needed to confirm the diagnosis. X-rays are useful for ruling out other issues but frequently miss vertical cracks, particularly smaller ones that run parallel to the film.

What Causes a Tooth to Crack?

Understanding what causes a tooth to crack helps you protect the teeth that remain healthy. The most common causes of a cracked tooth include:

• Teeth grinding (bruxism): The sustained pressure, especially at night, is one of the top causes of tooth cracking in adults
• Hard foods: Biting hard foods like ice, hard candy, popcorn kernels, or unpopped seeds can cause cracks in the teeth
• Trauma: A hit to the face, a fall, or an accident may lead to a cracked tooth
• Large existing fillings: Fillings leave less natural tooth structure to absorb chewing forces
• Rapid temperature changes: Eating something very hot then something cold can stress enamel over time
• Age: Enamel naturally becomes more brittle after 40, and molars bear the most load

Patients in Blaine who grind at night and have older back fillings are, in Dr. Ryan Lembke’s experience, the most likely to present with this problem.

What Are Your Treatment Options for a Cracked Tooth?

Cracked tooth treatment is not one-size-fits-all. The right approach depends on the type of crack, how deep it goes, and whether the pulp has been affected. Here’s how treatment is typically matched to severity:

• Bonding is used for minor surface cracks. A tooth-colored resin fills the crack and restores the tooth’s appearance. It’s quick and appropriate when the crack hasn’t reached the dentin.
• A dental crown is the most common treatment for cracked tooth cases where the crack extends into dentin. It covers the entire visible tooth, holds the crack together, and prevents it from worsening with every bite. At University Ave Dental, Dr. Mikaela Maier and the team use digital impression technology to deliver same-day crowns.
• Root canal treatment is performed when the crack has reached the pulp, i.e., the soft tissue at the center of the tooth containing nerves and blood vessels. Once the pulp is infected or inflamed, it must be removed before the crown is placed. This is not a treatment failure but how the tooth is saved.
• Extraction is the last option, reserved for cracks that extend below the gum line or split the tooth completely. These teeth cannot be saved intact.

Cracked tooth recovery after a crown typically involves a few days of mild sensitivity, after which most patients are comfortable chewing normally. Root canal recovery is similar, as the tooth itself is no longer vital but remains functional. Patients often report that the post-treatment sensitivity is far less than what they were experiencing before.

Can a Cracked Tooth Be Saved?

The likelihood of saving a cracked tooth depends largely on how deep the crack extends. Early treatment often allows the tooth to be preserved, while deeper fractures may require more extensive care.

A dentist can determine the extent of the crack through a clinical examination and recommend the most appropriate treatment to protect the tooth and prevent further damage.

When Should You See a Dentist for a Cracked Tooth?

See a dentist promptly if you notice:

• Pain when biting
• Temperature sensitivity that doesn’t resolve within a few seconds
• Swelling near a tooth

These are signs the crack may already be affecting the dentin or pulp, and the window for conservative treatment narrows quickly.

Seek same-day emergency care if you have:

• Severe, continuous pain
• Visible tooth displacement
• Swelling in your jaw or face

These can signal infection spreading from an untreated crack, which requires immediate attention.

Urgency is important, as a cracked tooth that is not treated will typically continue to deepen. What starts as a crown-level crack can eventually become a root fracture, at which point extraction may be the only option. Early intervention, even with something as straightforward as a crown, can preserve the tooth for many years.

How to Reduce Your Risk of a Cracked Tooth

While not every cracked tooth can be prevented, certain habits can lower the risk of tooth fractures and help preserve long-term dental health.

• Wear a custom nightguard if you grind or clench your teeth during sleep.
• Avoid chewing ice, hard candies, popcorn kernels, and other hard objects.
• Address cavities and damaged fillings before they weaken the tooth structure.
• Attend regular dental checkups to identify signs of wear, grinding, or small fractures early.
• Use protective mouthguards during contact sports and high-impact activities.
• Schedule a dental evaluation if you notice new pain when biting or unexplained tooth sensitivity.

Taking preventive steps can reduce stress on your teeth and may help prevent small cracks from developing into more serious fractures that require extensive treatment.

Conclusion

If you’ve been noticing pain when you bite down or sensitivity that comes and goes, don’t put off getting it checked. A cracked tooth is far easier to treat in its early stages, and the difference between a same-day crown and an extraction often comes down to timing.

University Ave Dental in Blaine offers same-day crown placement using digital impressions with no temporary crowns or second visits. Dr. Connor, Dr. Lembke, and Dr. Maier take the time to explain exactly what they’re seeing and walk you through your options before any treatment begins. 

To book an appointment for dental crowns in Blaine, call 763-784-1242, or visit the clinic at 10155 University Ave NE, Suite #112, Blaine, MN 55434. Hours are Monday through Thursday 7:00 am–5:00 pm and Friday 7:00 am–1:00 pm.

Frequently Asked Questions