Dental Trauma: What to Do and How It's Treated

Oct 22, 2026 · @Youngmo

A dental injury is a dental emergency: a tooth that is treated within the first 30 to 60 minutes has a far better chance of being saved than one that waits until morning. Whether it is a chipped front tooth from a fall, a loosened tooth after a collision on the field, or a tooth knocked out completely, what you do in the first hour matters more than almost anything that happens afterward.

This guide explains the common types of dental trauma, what to do right away, how each injury is treated, and what happens when a damaged tooth cannot be saved. If you are reading this because of an injury that just happened, skip ahead to "What to do in the first hour" and call us at Cypress Dental Implant Center right away.

Common types of dental trauma

Most dental injuries fall into one of six categories. The treatment, and how urgent it is, depends on which one you are dealing with.

Injury	What it looks like	How urgent
Chipped or fractured crown	A piece of the visible tooth is missing; edge may feel sharp; sensitivity to cold if the fracture is deep	Same week, or same day if the tooth is painful or bleeding from the center
Luxation (loosened or displaced tooth)	Tooth is loose, pushed back, forward, or up into the gum, but still in the socket	Same day
Avulsion (knocked-out tooth)	The whole tooth, root included, is out of the mouth	Within 30 to 60 minutes
Root fracture	Tooth may look fine or slightly loose; pain on biting; often only visible on an X-ray	Same day
Soft-tissue injury	Cut lip, tongue, cheek, or gum; often bleeds heavily at first	Same day; emergency room if bleeding won't stop after 15 minutes of pressure
Jaw or bone injury	Teeth don't meet the way they used to, jaw won't open or close normally, swelling or numbness in the chin or lip	Emergency room, then dental follow-up

Two things often surprise patients. First, a tooth that looks undamaged can still have a fractured root or a bruised nerve, which is why we X-ray every tooth near the point of impact, not just the one that hurts. Second, baby teeth and permanent teeth are managed differently: a knocked-out baby tooth is never replanted, because doing so can damage the permanent tooth developing underneath.

What to do in the first hour

The steps below apply to permanent (adult) teeth. For a baby tooth that is knocked out, control the bleeding, keep the child comfortable, and call us; do not try to put the tooth back.

If a tooth is knocked out

1. Pick the tooth up by the crown (the white part you chew with). Never touch the root; the cells on its surface are what let it reattach.

2. If it is dirty, rinse it for a few seconds in milk or saline. Do not scrub it, use soap, or wrap it in a tissue.

3. Put it back in the socket if you can. Push gently until it sits level with the neighboring teeth, then bite lightly on a clean cloth to hold it in place. This is the single most important step.

4. If you can't replant it, keep it moist. Cold milk is the best option most people have on hand. Saline or the person's own saliva (held in the cheek, for older kids and adults) also works. Never store it in water or let it dry out.

5. Get to a dentist immediately. Call us on the way. A tooth replanted within 30 minutes has the best prognosis; after 60 minutes dry, the outlook drops sharply.

If a tooth is chipped, cracked, or loosened

1. Rinse the mouth gently with warm water.

2. Save any broken piece in milk; sometimes it can be bonded back on.

3. If a tooth is pushed out of position, do not try to move it yourself. Bite gently on a cloth to stabilize it and call us.

4. Use a cold compress on the outside of the face for swelling. Over-the-counter ibuprofen or acetaminophen is fine for pain.

5. Avoid chewing on that side until you've been seen.

If the lip, tongue, or gum is cut

Apply firm pressure with clean gauze for 10 to 15 minutes. If bleeding continues, or the cut gapes open, go to urgent care or the ER for stitches, then see us to check the teeth. A lip that was cut by a tooth should be X-rayed; small tooth fragments can lodge in the tissue.

How dental trauma is treated

The goal of every trauma visit is the same: stabilize the tooth, protect the nerve, and give the tissues the best chance to heal. What that involves depends on the injury.

Small chips (enamel only). The edge is smoothed and polished, or rebuilt with tooth-colored composite bonding in a single visit. If you saved the broken fragment, it can often be bonded back on.

Larger fractures into the dentin or nerve. A fracture that exposes the pulp (you'll see a pink or red dot in the center of the break) needs to be sealed quickly. In a young patient with a healthy nerve, a partial pulpotomy can keep the tooth alive. In an adult, root canal treatment is usually the predictable choice, followed by a crown to protect the weakened tooth.

Loosened or displaced teeth (luxation). The tooth is gently repositioned under local anesthesia and splinted to its neighbors with a thin wire bonded to the teeth. The splint is flexible on purpose; a little movement helps the ligament heal. It typically stays on for 2 weeks (4 weeks for teeth pushed up into the bone). The nerve is checked at follow-up visits, since displaced teeth often lose vitality and need root canal treatment weeks or months later.

Knocked-out teeth (avulsion). If you replanted it at home, we confirm the position with an X-ray and splint it. If it came in stored in milk, it is replanted in the office. A flexible splint stays on for about 2 weeks. For an adult tooth, root canal treatment is started within 7 to 10 days, because the nerve will not survive the injury. A tooth that was dry for more than an hour can still be replanted, but the long-term prognosis is guarded, and we will discuss that honestly before deciding.

Root fractures. A fracture in the upper or middle third of the root is often repositioned and splinted for about 4 weeks, and many of these heal. A fracture near the gumline usually cannot be saved and is planned for extraction.

Soft-tissue injuries. Cuts are cleaned, checked for tooth fragments or debris, and sutured if needed. A tetanus booster is recommended if the wound was contaminated and your last dose was more than 5 years ago.

When a tooth can't be saved

Some injured teeth cannot be kept: a root fractured at the gumline, a tooth that was out of the mouth too long, or a replanted tooth that fuses to the bone and begins to resorb. In those cases, the question becomes how to replace it well, and timing matters as much as the restoration itself.

For adults, a dental implant is usually the best long-term replacement. It replaces the root as well as the crown, preserves the surrounding bone, and does not require grinding down the neighboring teeth the way a bridge does. Because traumatic injuries often involve the front teeth, where the bone is thin and the gumline is highly visible, these cases call for careful surgical planning. At Cypress Dental Implant Center, implant dentistry and surgical procedures are our focus, and front-tooth trauma cases are a large part of what we do.

The approach depends on what the injury left behind:

• Immediate implant. If the socket walls are intact and there is no infection, the damaged tooth can be removed and an implant placed the same day, sometimes with a temporary crown so you never leave without a tooth.

• Early or delayed placement. If bone was lost in the injury, we remove the tooth, preserve or graft the socket, and place the implant once it has healed, typically 3 to 4 months later. A temporary tooth is worn in the meantime.

• Bone and gum grafting. When trauma has fractured the thin front plate of bone, grafting rebuilds the foundation so the final crown looks natural and the gums stay stable for years.

For children and teens, implants wait. An implant placed in a growing jaw ends up sunken as the surrounding bone keeps developing, so we hold off until growth is complete, usually around 18 to 21. Until then, a bonded temporary tooth, a removable retainer with a tooth, or a short-term retention of the damaged tooth keeps the space and the smile. We plan the eventual implant from the start, so the bone is protected in the meantime.

When the lost tooth was a baby tooth, no replacement is needed. We monitor the permanent tooth underneath and, if needed, use a space maintainer so it comes in properly.

Why follow-up visits matter

An injured tooth can look and feel normal for months and still be dying inside. That is why trauma follow-up is scheduled, not optional: we typically check the tooth at 2 weeks, 4 weeks, 3 months, 6 months, and 1 year, then yearly for several years.

At each visit we test the nerve, take an X-ray, and look for three things:

• Pulp necrosis. The nerve dies, often silently. Signs are a tooth that darkens, tenderness to tapping, or a small pimple on the gum. Caught early, root canal treatment saves the tooth; caught late, infection can damage the surrounding bone.

• Root resorption. The body begins to break down the root. Some types stop on their own; others progress quickly and are the most common reason a replanted tooth is eventually lost.

• Ankylosis. The tooth fuses to the bone. In an adult it may last for years; in a growing child, the fused tooth stops moving with the jaw and ends up visibly shorter than its neighbors, which changes the long-term plan.

Call us between scheduled visits if the tooth changes color, becomes loose or painful, or a bump appears on the gum.

Preventing dental injuries

Most sports-related dental injuries are preventable with a mouthguard, and the athletes who need one most are not only football players: basketball, soccer, skateboarding, mountain biking, and martial arts all produce a steady stream of chipped and knocked-out front teeth.

• A custom-fitted mouthguard made from an impression or scan of your teeth fits better, is easier to breathe and talk in, and gets worn far more consistently than a boil-and-bite guard from a sporting-goods store. We make them in our office.

• Children with protruding front teeth are at higher risk and benefit from early orthodontic evaluation.

• A helmet with a face cage or chin guard protects the jaw as well as the head in contact sports and on bikes.

• At home, the most common toddler injury is a fall against a coffee table or bathtub edge; corner guards help.

• Don't use teeth as tools to open packages or bottles.

Frequently asked questions

Can a knocked-out tooth really be put back? Yes, and it is done routinely. Success depends mostly on how quickly it is replanted and how it was stored. Replanted within 30 minutes, most adult teeth survive for years; the ones that are lost are usually the ones that dried out.

My chipped tooth doesn't hurt. Do I still need to come in? Yes. The chip itself may only need polishing, but we need to rule out a crack running toward the nerve or a root fracture, neither of which you can feel at first.

My child hit a baby tooth and it turned gray. Is that an emergency? Not usually. A gray baby tooth often means the nerve was bruised; some recover, some don't. We check it with an X-ray and monitor it, and it is treated only if infection develops. Pink, swollen gums or a bump near the tooth should be seen promptly.

How much does trauma treatment cost, and will insurance cover it? Most dental plans cover emergency exams, X-rays, splinting, and root canal treatment. Implants are often partially covered, and some medical plans cover implant replacement after an accident. We check your benefits before treatment and offer financing.

How soon after an accident can I get an implant? For an adult with a healthy socket, sometimes the same day as the extraction. If bone was lost, usually 3 to 4 months after grafting. For a growing teen, after jaw growth is complete.

Dental emergency in Cypress? Call us now

Cypress Dental Implant Center treats dental injuries for patients across Cypress, Los Alamitos, Buena Park, La Palma, Garden Grove, and the surrounding Orange County communities. Our office is at 10521 Valley View St, Cypress, CA. Call us as soon as the injury happens, even after hours; a few minutes on the phone can change whether a tooth is saved.

If an injured tooth has already been lost, or you were told it can't be saved, schedule a consultation. We'll review your X-rays, explain your options, and plan a replacement that looks and functions like the tooth you had.

This article is for general education and is not a substitute for an in-person examination. If you have a dental injury, contact a dentist right away.