A cracked tooth can range from a superficial enamel line to a deeper fracture that affects the inner structures of the tooth. The type and depth of the crack help determine whether the tooth simply needs monitoring or requires restorative treatment.
In the video below, Dr. Benjamin Vela explains what a cracked tooth can feel like and why treatment depends on the severity of the damage.
Watch the short video first, then continue below for the direct answer, common symptoms, treatment options, and signs that a cracked tooth may need urgent dental care.
Can a Cracked Tooth Heal Itself?
No, a cracked tooth cannot heal on its own. Unlike a broken bone, a fracture in a tooth does not naturally fuse back together. Very shallow enamel cracks, known as craze lines, may not require treatment, but they do not technically “heal.”
The good news is that many cracked teeth can be treated and preserved. What happens next depends on the type of crack, how deeply it extends, whether the pulp or root is involved, and the condition of the surrounding tooth structure.
Because a cracked tooth does not always hurt, it is possible to have a crack without realizing how extensive it is. If you think you cracked a tooth, having a dentist evaluate it can help determine whether it simply needs monitoring or requires treatment to prevent further damage.
KEY TAKEAWAY: A cracked tooth may be repairable, but it cannot repair itself. Early evaluation helps determine how deep the crack extends and whether the natural tooth can be protected.
Why not? A true fracture in a tooth cannot regenerate or fuse back together because the hard tooth structure does not repair itself the way bone can.
Your teeth are made up of several layers, including hard enamel on the outside, dentin underneath, and the dental pulp containing nerves and blood vessels in the center. Once the hard structure of a tooth develops a true crack, the body does not repair that fracture in the same way it can repair damaged bone.
The American Association of Endodontists explains that cracked teeth do not heal like broken bones. Treatment instead focuses on protecting the tooth, addressing symptoms or pulp involvement when necessary, and reducing the chance of the crack progressing.
There is an important distinction when it comes to whether treatment is necessary. Very shallow lines that only affect the enamel are known as craze lines. These are common in adult teeth and usually do not cause pain. A dentist may recommend monitoring them rather than repairing them.
So, while you may hear someone say that a small crack “healed,” what usually happened is that the crack remained stable or did not require treatment – not that the tooth grew back together.
What Causes a Tooth to Crack?
A tooth can crack suddenly after an accident, but fractures can also develop gradually from repeated stress.
- Grinding or clenching your teeth, also known as bruxism.
- Biting hard foods such as ice, hard candy, popcorn kernels, or nuts.
- Large fillings or restorations that leave less natural tooth structure.
- Dental trauma from a fall, sports injury, car accident, or blow to the mouth.
- Age-related wear.
- Repeated heavy biting forces.
- Significant temperature changes affecting a vulnerable tooth.
Cracks may also develop in teeth that already have weakened or heavily restored structures. You cannot always prevent a cracked tooth, but understanding the cause can help your dentist determine whether additional protection – such as a night guard for grinding – may be beneficial.
What Types of Cracked Teeth Are There?
“Cracked tooth” is a broad term. Dentists distinguish between several types of cracks because the location and depth of the fracture can significantly affect treatment.
Craze Lines
Craze lines are extremely shallow cracks confined primarily to the tooth’s outer enamel. They are common, especially in adults, and usually do not cause pain. In many cases, no restorative treatment is necessary unless there is a cosmetic concern.
Fractured Cusp
A fractured cusp occurs when part of the tooth’s chewing surface breaks away, often around an existing filling. Because these fractures do not always involve the dental pulp, treatment may involve replacing a filling, bonding the damaged area, or protecting the remaining tooth with a dental crown.
Cracked Tooth
A cracked tooth usually refers to a fracture that begins on the chewing surface and extends deeper toward the root. These cracks can cause symptoms when chewing and may gradually become more extensive. Treatment depends on how far the fracture travels and whether the pulp or supporting structures are involved.
Split Tooth
A split tooth occurs when a fracture has progressed far enough that the tooth separates into distinct segments. Saving the entire tooth may not be possible in these cases, although the appropriate treatment depends on the specific anatomy and extent of the fracture.
Vertical Root Fracture
A vertical root fracture begins within the root of a tooth and extends upward. These fractures can be especially difficult to notice because symptoms may initially be minimal. Sometimes the problem is discovered after inflammation or infection develops in the gum or bone surrounding the affected root.
The prognosis of a cracked tooth cannot be determined simply by looking at the visible portion of the crack. Endodontic guidance on cracked teeth emphasizes evaluating the crack’s location, depth, periodontal involvement, and other clinical findings before determining whether a tooth can be predictably treated.
What Are the Symptoms of a Cracked Tooth?
Cracked tooth symptoms can vary considerably from person to person. You may experience:
- Sharp pain when biting or chewing.
- Pain when you release your bite.
- Sensitivity to hot or cold foods and drinks.
- Sensitivity to sweets.
- Discomfort that comes and goes.
- Pain that is difficult to pinpoint to a specific tooth.
- Tenderness when biting in a particular direction.
- Swelling around the affected tooth or gum.
- A rough or damaged edge following an injury.
One reason cracked teeth can be challenging to identify is that symptoms may be intermittent. The American Association of Endodontists notes that pain can come and go, making it difficult for some patients to determine exactly which tooth is causing the problem.
These symptoms are not exclusive to cracked teeth. Cavities, damaged fillings, infections, gum problems, and other dental conditions can cause similar discomfort. A dental examination is necessary to determine the cause.
Can You Have a Cracked Tooth Without Pain?
Yes. You can have a cracked tooth without pain.
Some fractures cause few or no noticeable symptoms, particularly when they are shallow or have not significantly affected the dental pulp. Vertical root fractures can also cause minimal symptoms initially and may go unnoticed until changes occur in the surrounding gum or bone.
Whether a cracked tooth hurts can depend on:
- Where the crack is located.
- How deeply it extends.
- Whether the pulp is irritated or infected.
- Whether portions of the tooth move when you bite.
- Whether inflammation has developed around the tooth.
Cleveland Clinic also notes that cracked teeth do not always produce symptoms. When symptoms do develop, biting pain, temperature sensitivity, and swelling are among the common complaints.
A cracked tooth with no pain has not necessarily healed. If you can see a crack, recently injured the tooth, or notice that something feels different when you chew, it is worth having the tooth examined even if it is not currently painful.
| Worried You Cracked a Tooth?
Pain is not always present when a tooth cracks. If something feels different when you bite or you have noticed damage to a tooth, Dr. Vela can evaluate it and explain whether treatment is necessary. |
Need urgent care? Learn more about our emergency dentist in Corpus Christi.
What Happens if a Cracked Tooth Goes Untreated?
A cracked tooth does not automatically become a serious dental problem overnight. However, because the tooth cannot heal the fracture, some cracks can progress when exposed to continued chewing pressure.
Depending on the crack, leaving it untreated may contribute to:
- Increasing tooth sensitivity.
- Worsening pain while chewing.
- Additional loss of tooth structure.
- Inflammation of the dental pulp.
- Bacterial infection.
- A dental abscess.
- A fracture becoming too extensive to restore predictably.
A crack can also create a pathway that allows bacteria to reach deeper portions of the tooth. Infections involving the pulp or tissues surrounding a tooth require professional treatment.
This is why early diagnosis matters. The goal is not to assume that every tiny enamel line will become serious, but to determine what type of crack you actually have before it progresses unnoticed.
How Long Can You Go With a Cracked Tooth?
There is no reliable amount of time that is considered “safe” to leave a true cracked tooth untreated. Some cracks remain relatively stable for a period of time. Others can extend farther under repeated biting forces.
Because you cannot accurately determine the depth of a crack at home, it is better to have a suspected fracture evaluated rather than waiting for severe pain. As a general rule:
- No pain or mild symptoms: Schedule a dental examination.
- Increasing pain or temperature sensitivity: Contact your dentist promptly.
- Significant fracture, swelling, trauma, or signs of infection: Seek urgent dental care.
- Severe facial swelling, uncontrolled bleeding, major facial trauma, or swelling affecting breathing or swallowing: Seek emergency medical care.
The American Dental Association advises patients with a cracked tooth to contact a dentist as soon as possible.
How Do Dentists Diagnose a Cracked Tooth?
Cracked teeth can be difficult to diagnose because the fracture may be extremely small or extend somewhere that is not directly visible.
At Vela Dental, diagnosing a suspected crack may begin with discussing your symptoms and dental habits, including whether you grind your teeth, recently experienced trauma, or frequently chew very hard foods. Dr. Vela may then use one or more diagnostic techniques depending on what he finds during the examination.
- Visually examining the tooth under magnification.
- Feeling the surface for irregularities.
- Checking your bite to determine whether pressure triggers pain.
- Examining the gums for localized inflammation or unusual periodontal changes.
- Passing light through the tooth, known as transillumination.
- Using dental dye to make a fracture easier to identify.
- Taking dental X-rays.
- Using additional imaging in selected cases.
Standard dental X-rays do not always show the crack itself. They can still help identify other findings associated with the affected tooth or rule out another cause of symptoms.
In certain situations, three-dimensional cone beam computed tomography (CBCT) imaging may also provide useful information about changes in the bone and structures surrounding a suspected fracture. Cleveland Clinic’s cracked tooth overview describes several of these diagnostic approaches.
Once the tooth has been evaluated, Dr. Vela can explain the type of crack, whether treatment is recommended, and what options are appropriate.
How Is a Cracked Tooth Treated?
Treatment for a cracked tooth depends on its location, depth, symptoms, and the amount of healthy tooth structure remaining. There is no single treatment that applies to every cracked tooth.
Dental Bonding or Filling
Minor damage may sometimes be repaired using dental bonding or a dental filling. These treatments are generally considered when the damage is limited enough that the remaining tooth can provide adequate support.
Dental Crown
A dental crown covers the visible portion of a tooth and can help protect structurally weakened teeth while restoring their shape and function. Crowns are commonly considered for cracked or heavily restored teeth when a filling alone may not provide enough protection. Learn more about Vela Dental’s porcelain crown and cosmetic dentistry options.
Root Canal Treatment
A cracked tooth does not automatically need a root canal.
Root canal treatment may be recommended when the crack has affected the dental pulp or when inflammation or infection inside the tooth requires endodontic treatment. After root canal therapy, a crown may also be recommended to protect and restore the tooth depending on the clinical situation. Learn more about root canal treatment at Vela Dental.
Tooth Extraction
If a fracture is so extensive that the tooth can no longer be restored predictably, extraction may become necessary. This determination should be based on an examination rather than assuming that every deep-looking crack means the tooth must be removed. When possible, the priority is generally to determine whether the natural tooth can first be treated and preserved.
Monitoring Minor Craze Lines
Some superficial craze lines require no active treatment. If an examination confirms that the line is limited to the enamel and does not compromise the health or strength of the tooth, Dr. Vela may simply recommend monitoring it during routine dental visits.
Can a Cracked Tooth Be Saved?
Yes, many cracked teeth can be saved.
Whether yours can be treated depends on:
- How deeply the crack extends.
- The location and direction of the fracture.
- Whether the tooth has split.
- The health of the pulp.
- The condition of the root.
- How much healthy tooth structure remains.
- The condition of the surrounding gums and bone.
A crown, root canal treatment, or another restorative approach may allow a cracked tooth to remain functional for years. However, no treatment can guarantee that a fracture will never progress. The earlier a significant crack is diagnosed, the more information your dentist has to work with when determining whether the natural tooth can be preserved.
When Is a Cracked Tooth an Emergency?
Not every cracked tooth requires emergency treatment, but some situations should be addressed quickly.
Schedule a Dental Evaluation
Make an appointment if you notice:
- A visible crack.
- Mild sensitivity.
- Occasional discomfort while chewing.
- A small chip.
- A tooth that feels different after biting something hard.
Even without severe pain, an examination can determine whether the damage is superficial or extends deeper into the tooth.
Contact a Dentist Promptly for Urgent Symptoms
Seek prompt dental care if you experience:
- Severe or worsening tooth pain.
- Substantial pain when biting.
- A badly broken or cracked tooth.
- Significant temperature sensitivity.
- Swelling around a tooth.
- Facial or jaw swelling.
- Dental trauma.
- Symptoms that may indicate infection.
A badly cracked tooth and severe toothache can qualify as dental emergencies. Cleveland Clinic’s dental emergency guidance recommends urgent attention for significant dental injuries and symptoms.
When to Seek Emergency Medical Care
Some symptoms go beyond a routine dental emergency. Seek emergency medical attention for issues such as:
- Uncontrolled bleeding.
- Major facial or jaw trauma.
- Significant oral or facial swelling that interferes with breathing or swallowing.
| Think Your Cracked Tooth Is an Emergency?
Severe pain, swelling, or significant dental trauma should not be ignored. Contact Vela Dental to discuss your symptoms and determine how soon you should be seen. |
What Should You Do While Waiting to See a Dentist?
Home remedies cannot make a cracked tooth fuse back together, but there are steps you can take to avoid irritating the tooth before your appointment.
- Avoid chewing on the affected side.
- Stay away from ice, hard candy, and other very hard foods.
- Rinse your mouth gently with warm water.
- Apply a cold compress to the outside of the face if swelling develops.
- Save any portion of the tooth that breaks off and bring it with you.
- Keep the area as clean as possible.
The American Dental Association recommends rinsing with warm water and applying a cold compress if swelling occurs after cracking a tooth, followed by prompt dental evaluation.
Do not place aspirin directly against your tooth or gum tissue, and do not attempt to glue a broken tooth back together yourself. These steps are temporary measures. They do not repair the fracture.
Can You Prevent a Cracked Tooth?
Not every tooth fracture is preventable, especially when trauma is involved, but you can reduce certain risks. Helpful habits include:
- Avoid chewing ice, hard candy, and other objects that can place excessive stress on teeth.
- Never use your teeth as tools to open packaging.
- Wear a mouthguard during contact sports and recreational activities.
- Ask your dentist about a night guard if you grind or clench your teeth.
- Maintain good brushing and flossing habits.
- Keep up with routine general dentistry visits in Corpus Christi.
Regular examinations also allow your dentist to identify decay, damaged restorations, grinding-related wear, and other factors that can weaken teeth before a fracture occurs.
Frequently Asked Questions About Cracked Teeth
Can a hairline crack in a tooth heal itself?
No. A hairline fracture does not fuse back together. Some very shallow enamel craze lines may not require treatment, but the line itself does not technically heal.
Can a cracked tooth stop hurting?
Yes. Pain from a cracked tooth can come and go. A tooth becoming less painful does not necessarily mean the crack has healed.
Can you have a cracked tooth with no pain?
Yes. Some cracked teeth produce little or no pain, especially in the early stages or when the fracture does not significantly irritate the dental pulp.
Does every cracked tooth need a root canal?
No. Root canal treatment is considered when the dental pulp is involved or other clinical findings indicate that endodontic treatment is appropriate.
Does every cracked tooth need a crown?
No. Treatment depends on the size, depth, and location of the fracture. Some minor damage may be treated with bonding or a filling, while some superficial enamel lines may only need monitoring. Crowns are often considered when a tooth needs greater structural protection.
Can a cracked tooth be saved?
Many cracked teeth can be treated and preserved. The prognosis depends on the location and extent of the crack and the health of the surrounding tooth, pulp, root, and supporting structures.
Is a cracked tooth an emergency?
Not every small crack requires emergency treatment. Severe pain, major fracture, swelling, dental trauma, or signs of infection warrant prompt dental care.
Have a Dentist Evaluate Your Cracked Tooth
A cracked tooth cannot heal itself, but that does not automatically mean you will lose the tooth.
Many fractured teeth can be restored when the type and extent of damage are identified early enough. Depending on what Dr. Vela finds during your examination, treatment could range from simply monitoring the tooth to placing a filling or crown, performing root canal treatment, or considering another approach for more extensive damage.
If you have noticed a crack, pain when biting, new tooth sensitivity, or damage following an injury, do not rely on symptoms alone to tell you how serious it is.
Schedule an evaluation with Dr. Benjamin Vela at Vela Dental in Corpus Christi to find out what is happening and what treatment – if any – your tooth needs.
| Contact Vela Dental
Have a dentist evaluate the tooth and discuss the treatment options that fit your specific situation. |
About the Medical Reviewer
Benjamin Vela, DDS is a Corpus Christi dentist with more than 18 years of experience providing general, restorative, cosmetic, and implant dentistry. Dr. Vela earned his dental education at the UT Health Science Center in San Antonio and provides comprehensive dental care at Vela Dental Cosmetic & Implant Center.
Medical Disclaimer
This article is intended for general educational purposes and is not a substitute for an examination, diagnosis, or individualized treatment recommendation from a licensed dentist. If you are experiencing severe dental pain, swelling, trauma, or other urgent symptoms, contact a dental professional for guidance. Significant swelling that affects breathing or swallowing, uncontrolled bleeding, or major facial trauma may require emergency medical attention.
