What your dentist does for a broken tooth depends entirely on how deep the break goes. A small chip on the surface can be repaired in a single painless visit, while a fracture that reaches the nerve or splits the root may need more involved treatment. Most broken teeth fall somewhere in between, and your dentist will assess the damage before recommending one of several well-established options.
What Happens at Your First Visit
Your dentist starts by examining the break visually and probing the tooth to check for sensitivity, mobility, and sharp edges. Standard X-rays can reveal fractures below the gumline and damage to the root, but they sometimes miss cracks that run lengthwise through the tooth. In those cases, a 3D scan called cone-beam computed tomography (CBCT) is significantly more accurate at detecting vertical fractures and the bone loss patterns associated with them.
The exam also includes testing whether the nerve inside the tooth is still alive. If the tooth responds normally to cold or pressure, the nerve is likely healthy and the repair options are broader. If the nerve tissue has died or is inflamed beyond recovery, that changes the treatment plan.
Before You Get to the Dentist
If you’ve just broken a tooth, rinse your mouth with warm water and save any broken pieces. For bleeding, hold a piece of gauze against the area for about 10 minutes. A cold compress on the outside of your cheek helps with both pain and swelling. If the break is a small chip that isn’t causing pain, it’s fine to wait for a regular appointment. But if there’s significant pain, visible pink or red tissue inside the tooth, or a sharp edge cutting your tongue or cheek, get seen as soon as possible. Orthodontic wax (available at most pharmacies) can cover a sharp edge in the meantime.
Bonding for Small Chips
When the break only affects the outer enamel layer, your dentist will likely recommend dental bonding. This is the simplest and fastest fix. The dentist roughens the surface of the tooth and applies a liquid that helps the repair material grip. Then a putty-like composite resin is sculpted onto the tooth, shaped to match its original contour, and hardened with a special curing light. The whole process typically takes one visit and doesn’t require numbing unless the chip is near sensitive areas.
Bonding works best on front teeth and small chips. It lasts 3 to 10 years depending on where it is in your mouth and how much force that tooth handles during chewing. It can stain over time and isn’t as strong as other options, so for molars or larger breaks, your dentist will usually suggest something more durable.
Crowns for Larger Breaks
If a significant portion of the tooth is missing or the remaining structure is cracked, a crown is the standard repair. A crown is a custom-made cap that fits over the entire visible portion of the tooth, restoring its shape and strength. Crowns are the go-to solution for broken molars, cracked teeth that are still in one piece, and teeth weakened by large fillings that have now fractured around the edges.
The traditional process takes two appointments. At the first visit (about 60 to 90 minutes), the dentist reshapes the remaining tooth, takes impressions, and places a temporary crown. A dental lab then fabricates the permanent crown, which takes one to three weeks. At the second visit (30 to 45 minutes), the temporary comes off and the permanent crown is cemented in place.
Many dental offices now offer same-day crowns using in-office milling technology. The dentist takes a digital scan of your tooth, and a machine carves the crown from a ceramic block while you wait. The entire process, from preparation to final placement, takes two to four hours in a single appointment. With proper care, porcelain crowns last 15 years or more.
There’s also a middle ground. When a tooth is too damaged for a filling but still has enough healthy structure that a full crown isn’t necessary, your dentist may recommend an inlay or onlay. These are partial crowns that cover only the broken section of the tooth rather than capping the whole thing.
Root Canal for Nerve Damage
When a break goes deep enough to expose the pulp, which is the soft tissue containing the nerve and blood supply inside the tooth, treatment gets more involved. You’ll know the pulp is exposed if you see a pinkish or reddish area in the center of the broken tooth, or if you have intense, lingering pain in response to hot or cold temperatures.
For very small exposures (less than about 1 millimeter) treated quickly after the injury, the dentist may be able to cap the exposed area and preserve the nerve. This works only when the nerve tissue is still healthy and the bleeding can be controlled.
If the nerve is already dying, infected, or the exposure is larger, a root canal is necessary. The dentist removes the damaged nerve tissue from inside the tooth, cleans and seals the internal canals, and then restores the tooth with a crown. A root canal is also sometimes needed even when the nerve is healthy, if so much tooth structure is missing that a post needs to be placed inside the root to anchor the restoration above it. After a root canal, the tooth itself no longer senses temperature, but it remains functional and can last many years under a well-fitted crown.
When the Tooth Can’t Be Saved
Some fractures make saving the tooth impossible. A vertical root fracture, which is a crack running lengthwise down the root, carries a poor prognosis. When the fracture extends across multiple surfaces of the root, the mechanical stability of the tooth is compromised beyond reliable repair. Teeth that are severely broken at or below the gumline, or where the root has split into separate fragments, are also candidates for extraction.
If your dentist determines the tooth needs to come out, the conversation shifts to replacement options. The most common is a dental implant: a titanium post placed in the jawbone that eventually fuses with the bone and supports a crown on top. Other options include a fixed bridge, which anchors an artificial tooth to the neighboring teeth, or a removable partial denture. The right choice depends on the location of the missing tooth, the health of surrounding teeth and bone, and your budget.
How the Location of the Break Matters
Front teeth and back teeth break differently and get treated differently. Front teeth are thinner and more likely to chip cleanly at the edge. Bonding and porcelain veneers work well here because the biting forces are lower. Back teeth (molars and premolars) absorb enormous chewing pressure, so they’re more prone to cracking through a cusp or splitting around an old filling. These teeth almost always need a crown or onlay to withstand daily use after a fracture.
A break that leaves a sharp edge but doesn’t affect the tooth’s structure may only need smoothing and reshaping, which takes minutes and doesn’t require any restoration at all. Your dentist won’t recommend a more aggressive treatment than the damage calls for, because preserving natural tooth structure is always the priority.