A cracked tooth needs professional dental treatment, but what you do in the hours and days before your appointment matters. The right steps can reduce pain, prevent the crack from worsening, and improve your chances of saving the tooth. How your dentist ultimately treats it depends on how deep the crack goes and whether it has reached the inner nerve tissue.
What a Cracked Tooth Feels Like
The hallmark symptom is a sharp, sudden pain when you bite down, especially when you release the bite. This happens because chewing forces flex the crack open slightly, irritating the soft tissue inside. You may also notice sensitivity to hot or cold foods, a reaction to sweet foods, or swelling around the affected tooth. Some people feel intermittent pain that comes and goes over weeks, making it hard to pinpoint which tooth is the problem.
Not all cracks produce symptoms. Tiny surface-level cracks called craze lines are found in the majority of adult teeth and only involve the outer enamel. These are cosmetic, not structural, and don’t require treatment. The concern starts when a crack extends deeper into the tooth’s inner layers.
Immediate Steps to Manage Pain
Rinse your mouth gently with warm salt water to keep the area clean. Over-the-counter pain relievers like ibuprofen can reduce both pain and inflammation. If the tooth is sensitive to temperature, avoid very hot or cold foods and drinks, and try chewing on the opposite side of your mouth.
Don’t try to wiggle the tooth or probe the crack with your tongue or a toothpick. Avoid hard, crunchy, or sticky foods that could flex the crack further. If a piece of the tooth has broken off and you still have it, store it in milk or saliva and bring it to your appointment. Cold compresses on the outside of your cheek can help with swelling. These measures buy you time, but they’re not a substitute for getting into a dental chair as soon as you can.
How Dentists Classify the Damage
Your dentist will evaluate the crack to determine its type and depth. The American Association of Endodontists recognizes five categories, and knowing where yours falls helps explain the treatment path ahead.
- Craze lines: Superficial enamel cracks visible on most adult teeth. No treatment needed.
- Fractured cusp: A piece of the chewing surface breaks off, often around an existing filling. This is painful but usually doesn’t damage the nerve.
- Cracked tooth: A crack runs from the chewing surface downward toward the root but hasn’t yet split the tooth into separate pieces. This is the most common type that brings people to the dentist.
- Split tooth: The crack has progressed all the way through, dividing the tooth into two distinct segments. This is often the end result of a cracked tooth that went untreated.
- Vertical root fracture: The crack starts in the root and extends upward. These are especially tricky because they often go undetected until the surrounding bone or gum becomes infected.
Treatment Options by Severity
For minor cracks and small chips, dental bonding is the simplest fix. Your dentist applies a tooth-colored composite resin directly to the crack, sculpts it into shape, and hardens it with a light. The procedure is quick, often completed in a single visit, and works well for cosmetic damage that hasn’t compromised the tooth’s structure.
When the crack is more extensive, a dental crown is the standard approach. A crown is a cap that covers the entire visible portion of your tooth above the gum line, reinforcing it and preventing the crack from spreading. This typically requires two visits: one to prepare the tooth and take impressions, and a second to place the permanent crown. The difference in outcomes is dramatic. One study found that cracked teeth restored with a crown had a 94% survival rate at two years, compared to just 20% for those restored without one.
If the crack has reached the pulp (the nerve and blood supply inside the tooth), you’ll likely need a root canal before the crown is placed. The damaged pulp tissue is removed, the interior is cleaned and sealed, and then the crown goes on top. Newer studies on deeply cracked teeth treated this way report survival rates between 82% and 96% over several years. A split tooth may still be partially salvageable depending on how much structure remains, but in many cases extraction is the only option. Vertical root fractures almost always require extraction as well.
What Recovery Looks Like
After a crown is placed, expect some sensitivity and mild discomfort for the first few days. This is a normal response to the preparation process and the adjustment of your bite to the new crown. Most people find the discomfort fades within a few days to a couple of weeks without any additional treatment.
If pain persists beyond several weeks, or if it gets worse rather than better, that’s a sign something needs attention. The crown’s fit may need adjustment, or the crack may have been deeper than initially assessed. Biting should feel natural once everything settles. During the recovery period, stick to softer foods and avoid chewing directly on the new crown until sensitivity resolves.
What Happens If You Wait Too Long
Ignoring a cracked tooth is one of the riskier gambles in dental health. Every time you chew, the crack flexes open slightly, irritating the pulp inside. Over time, this constant mechanical stress damages the pulp beyond repair. Once the crack penetrates through the hard outer layers into the pulp chamber, it creates a direct pathway for bacteria to reach the living center of the tooth.
When bacteria colonize the pulp, it becomes inflamed and can eventually die. This creates an environment where infection thrives and spreads into the surrounding bone and gum tissue, often developing into a dental abscess: a pocket of pus at the root of the tooth. At that point, a straightforward crown procedure has escalated into a root canal, possible surgery, or extraction. Losing a natural tooth also leads to bone loss in the jaw over time, which can affect neighboring teeth and complicate future dental work.
Typical Costs
Dental bonding is generally the least expensive option. Crown costs vary by location and material but typically fall in the $700 to $1,300 range per tooth. If a root canal is needed first, expect an additional $500 to $1,400 depending on the tooth’s location (front teeth cost less than molars). Dental insurance often covers a significant portion of crowns and root canals when they’re medically necessary, though you may need to meet a deductible first. Without insurance, ask your dentist about payment plans, as most offices offer them.
Preventing Future Cracks
Teeth most often crack from grinding, clenching, biting hard objects, or trauma. If you grind your teeth at night (a condition called bruxism), a custom night guard is one of the most effective investments you can make. These fit over your teeth and absorb the grinding forces that would otherwise wear down enamel and stress existing dental work. Your dentist can fit you for one, or over-the-counter versions offer a lower-cost starting point.
If you play contact sports like basketball, hockey, football, or soccer, a sports mouth guard significantly reduces your risk of chipped, cracked, and knocked-out teeth. Beyond protective gear, avoid chewing ice, hard candy, popcorn kernels, and pen caps. Large temperature swings (like eating ice cream right after drinking hot coffee) also stress tooth enamel. If you have old, large fillings, ask your dentist whether a crown might be worthwhile as a preventive measure, since teeth with big restorations are more vulnerable to cusp fractures.