A cracked tooth needs protection from further damage right away, even if your dental appointment is days out. What you do in the hours and days between the crack and professional treatment can make a real difference in whether the tooth is saved. Most cracked teeth have favorable outcomes when treated promptly, with survival rates between 82% and 96% even for deeper cracks that reach the nerve.
What to Do Right Away
Start by rinsing your mouth with warm salt water: one teaspoon of salt dissolved in a cup of warm water. This keeps the area clean and reduces bacteria around the exposed tooth structure. Repeat this rinse after every meal until you see a dentist.
If the crack has exposed the soft inner layer of the tooth (the pulp), you can cover it with a temporary filling material sold at most drugstores. These kits come with instructions and create a short-term seal that protects the nerve from food, bacteria, and temperature changes. This is a stopgap, not a fix, but it can significantly reduce pain and lower infection risk while you wait for professional care.
Switch to soft foods that require minimal chewing. Avoid anything salty, spicy, or acidic, including citrus fruits and tomatoes, which can irritate exposed tissue. Try not to chew on the side of the cracked tooth at all. If a piece of the tooth is loose or sharp, avoid wiggling it with your tongue or fingers.
Managing the Pain
For mild pain, ibuprofen (400 mg every six hours) or acetaminophen (325 to 500 mg every six hours) works well on its own. For moderate pain, combining both medications is more effective than either one alone. Take ibuprofen at 400 to 800 mg every six hours alongside acetaminophen at 500 to 650 mg every six hours.
One important detail: take these on a schedule rather than waiting for the pain to return. Staying ahead of the pain is easier than chasing it. Keep your total acetaminophen from all sources under 3,000 mg per day. If the pain is severe enough that this combination isn’t controlling it, that’s a signal to seek urgent dental care rather than increasing doses on your own.
Types of Cracks and Why It Matters
Not all cracks are equal. The American Association of Endodontists classifies them into five categories, and the type you have largely determines what treatment you’ll need.
- Craze lines are tiny, superficial cracks in the outer enamel. Almost every adult has them. They don’t cause pain and rarely need treatment.
- Fractured cusp means a piece of the chewing surface has broken off. This usually doesn’t damage the nerve, and a crown or large filling typically resolves it.
- Cracked tooth is a crack that runs vertically from the chewing surface toward the root. If it hasn’t reached the nerve, a crown can often save it. If it has, a root canal followed by a crown is the standard approach.
- Split tooth is what happens when a cracked tooth goes untreated long enough for the crack to separate the tooth into distinct segments. Part of the tooth can sometimes be saved, but full extraction is common.
- Vertical root fracture starts in the root and works upward. These are tricky because symptoms are often vague. Extraction is frequently the only option.
Cracked teeth are notoriously difficult to diagnose because their symptoms tend to be vague. Pain that comes and goes when chewing, sensitivity to hot or cold that lingers, or discomfort that’s hard to pinpoint to a specific tooth are all classic signs. Your dentist may use a bright light, bite tests, or dye to find the exact location and depth of the crack.
How Dentists Repair Cracked Teeth
The repair depends on how deep and extensive the crack is. For small cosmetic cracks or minor chips, dental bonding is the simplest option. Your dentist applies a tooth-colored resin directly to the damaged area. Bonding typically doesn’t require removing any enamel, which makes it reversible and minimally invasive. The trade-off is durability: bonding doesn’t last as long as a crown or veneer.
For cracks that compromise the tooth’s structure but haven’t reached the nerve, a crown is the go-to treatment. The crown fits over the entire visible portion of the tooth, holding it together and preventing the crack from spreading. Your dentist can sometimes complete this in a single visit, though it often takes two appointments, with a temporary crown placed in between.
When the crack extends into the pulp, a root canal is needed before the crown goes on. The damaged nerve tissue is removed, the interior of the tooth is sealed, and then a crown protects the whole structure. Recent data shows this approach is quite successful: studies report survival rates of around 96% and success rates near 90% over two to four years, even for teeth with deeper cracks. That challenges the older assumption that deeply cracked teeth should simply be pulled.
If the tooth has fully split or the crack runs below the gum line into the root, extraction may be the only realistic option. A dental implant or bridge can replace the missing tooth afterward.
What Recovery Looks Like
Recovery timelines vary widely depending on the treatment. Bonding is essentially immediate: you walk out of the office with a repaired tooth. Crowns involve a bit more patience, especially if your dentist needs to send the crown to a lab for fabrication. Expect the full process to wrap up within a few weeks. Root canal cases can take longer, sometimes stretching over multiple appointments across several weeks or months before the final crown is placed.
During recovery, continue rinsing with salt water after meals. Stick with softer foods for the first few days after any procedure, and avoid biting down directly on the treated tooth until your dentist confirms the repair is fully set. Temporary crowns deserve extra caution since they’re cemented with weaker adhesive by design. Avoid sticky or very hard foods on that side until the permanent crown is in place.
Signs of Infection to Watch For
A cracked tooth that exposes the inner pulp creates an entry point for bacteria, which can lead to an abscess. Watch for redness inside the mouth or swelling on your face or jaw, swollen glands on the sides of your neck, or a fever. These all point to a spreading infection that needs prompt treatment.
Certain symptoms require emergency care: significant swelling in your mouth that makes it hard to open your jaw, a swollen or painful eye, or sudden vision changes. These suggest the infection has spread beyond the tooth and into surrounding tissues.
Preventing Further Cracks
If you grind or clench your teeth, especially during sleep, you’re putting constant stress on teeth that can eventually cause cracks or worsen existing ones. A mouth guard is the most effective prevention tool. Custom-made guards from your dentist are shaped to fit your exact bite, making them more comfortable and more protective than store-bought options. Boil-and-bite guards from the drugstore are a reasonable budget alternative, though they don’t fit as precisely. If grinding is your issue, plan on wearing the guard every night.
Beyond a mouth guard, a few habits make a difference. Don’t chew ice, hard candy, or non-food objects like pen caps. Be careful with foods that hide hard surprises, like olives with pits or popcorn with unpopped kernels. If you play contact sports, a sports mouth guard protects against impact fractures. And if you already have a crown or other dental restoration, a mouth guard helps protect that investment too.