Dental Emergency? When to Call, Wait, or Go to the ER

A dental emergency rarely comes with clear instructions. Most people have to decide what to do while they're hurting and stressed. This guide gives you the answer ahead of time: what needs a same-day call, what can wait a day or two, and when to head to the ER instead.

At Peterborough Family Dental, Dr. Muhammad Rahim, DMD, sees urgent cases promptly through the practice's emergency dentistry care and can advise by phone when you're not sure. Same-day emergency visits are one of the dental services patients rely on most.

What Counts as a True Dental Emergency?

A true dental emergency is any situation involving severe uncontrolled pain, active infection with swelling, dental trauma from an injury, or risk of permanent damage that worsens with delay. These situations require same-day contact with a dental office, not a wait-and-see approach over days or weeks.

True dental emergencies that require calling the same day include:

• Knocked-out permanent tooth: The best chance of saving it is within 30 minutes of the injury. A knocked-out tooth is the most time-sensitive dental emergency there is. Call immediately.
• Severe toothache: Throbbing, constant pain that does not let up, radiates to the jaw or ear, or wakes you from sleep indicates a problem that is unlikely to resolve on its own and is often a sign of infection or pulp involvement.
• Dental abscess: Swelling of the gum, jaw, or face alongside tooth pain, a visible pus-filled bump on the gum, fever accompanying tooth pain, or a foul taste in the mouth all suggest active infection. Dental abscesses can spread beyond the mouth and become serious medical emergencies if untreated.
• Cracked or fractured tooth with pain: A crack that causes sharp pain when biting or significant sensitivity indicates structural involvement that needs prompt evaluation.
• Uncontrolled bleeding from the mouth: Bleeding that does not slow within 15 to 20 minutes after an injury warrants same-day attention.
• Lost crown or filling exposing significant sensitivity: When an existing restoration fails and leaves a tooth severely exposed, sensitive, or structurally vulnerable, prompt attention prevents further damage.

The ADA's guide to dental emergencies stresses the same point: untreated dental infections can spread to other areas of the head and neck. That's why swelling and fever alongside tooth discomfort should always be treated as urgent.

Emergency Triage at a Glance

What Can Wait One to Two Days?

Some dental problems are uncomfortable and worth addressing soon, but do not carry the same urgency as the situations above. These warrant calling the office to get on the schedule promptly, ideally within one to two days, rather than the same hour.

Situations that are urgent but not immediate emergencies include:

• Lost crown or filling with mild sensitivity: If the exposed tooth is sensitive but not in severe pain, getting seen within a day or two prevents further damage without being a same-hour crisis.
• Chipped or broken tooth without pain: A tooth that has broken but is not causing pain or affecting bite significantly can usually wait a day or two without worsening.
• Mild to moderate toothache that comes and goes: Intermittent tooth pain that is manageable and not accompanied by swelling or fever is worth having evaluated soon, but does not require dropping everything immediately.
• Loose orthodontic wire causing irritation: An orthodontic wire poking the cheek or tongue is uncomfortable but manageable for a day or two while waiting for an appointment.
• Minor soft tissue injury: A small cut or bite on the inside of the cheek that has stopped bleeding and is healing on its own can be monitored while scheduling an appointment.

When Should You Go to the Emergency Room Instead?

Certain dental-related symptoms require immediate medical evaluation at an emergency room rather than a dental office. Dental offices are equipped to treat teeth, gums, and oral structures, but some infections and injuries require medical care that goes beyond dental scope.

These symptoms suggest a spreading infection or an injury that needs medical care beyond what a dental office provides. Once you're stable, the dental follow-up comes next.

What Should You Do If a Tooth Gets Knocked Out?

Call the office right away so the team is ready when you arrive. Pick the tooth up by the crown only, keep it moist in the socket, between your cheek and gum, or in milk, and get there fast. According to the ADA, a knocked-out tooth can often be saved if it's reimplanted within 30 minutes.

Baby teeth are different. They generally aren't put back, because that can harm the adult tooth developing underneath. Call for guidance, but the urgency is lower than for a permanent tooth.

What to Do With a Cracked or Broken Tooth

A cracked or broken tooth should be checked soon, and your symptoms set the pace. Sharp discomfort when biting, strong temperature sensitivity, or a fracture into the gum line means a same-day call. A chip with sharp edges but no discomfort can usually wait a day or two. Learn more about chipped and broken tooth care.

Avoid biting on the affected side and avoid temperature extremes until the tooth is evaluated. Do not attempt to file or smooth a sharp edge yourself, as uncontrolled abrasion can introduce more damage. The dentist can smooth a sharp edge quickly at the appointment while also assessing whether the underlying structure is intact.

What to Do With a Dental Abscess

An abscess needs prompt professional care. Call the office right away if you have swelling, fever, or trouble swallowing along with tooth discomfort, and be ready to go to the ER if those symptoms get worse. The practice's dental abscess care page explains how it's treated.

Do not delay calling because the pain seems manageable at the moment. Abscesses can fluctuate in pain level as pressure builds and releases, but the infection itself does not fluctuate. A temporarily reduced pain level during an active abscess does not mean the infection is resolving.

Many abscesses are treated with a root canal that saves the tooth. If that word makes you nervous, this guide on what a root canal really feels like may help.

What If You're Not Sure It's a Dental Emergency?

When in doubt, call. Describing your symptoms takes about two minutes, and the team can tell you whether you need a same-day visit, a next-day slot, or home care until a scheduled appointment. There's no wrong call to make. The only real mistake is waiting too long.

The most common reason patients delay calling during a dental emergency is uncertainty about whether the situation is "serious enough." The answer is that the dental team makes that judgment, not the patient, and they need to hear from you to do so.

Why Waiting Costs More Than It Saves

According to the CDC, nearly 1 in 4 adults in the US has untreated tooth decay, and untreated decay is what turns a manageable problem into a 2 a.m. one. According to the ADA, regular dental visits catch 80% of oral health issues before they become serious.

Can You Prevent a Dental Emergency?

Not every one, but many. Sports cause up to about 33% of all mouth and face injuries, according to a 2019 review in Sports Medicine, and a fitted mouthguard is the simplest protection. Regular checkups catch cracks, worn fillings, and early infections before they flare up at 2 a.m. And don't chew ice, hard candy, or popcorn kernels, which crack more teeth than most people expect.

Does Peterborough Family Dental See Emergency Patients?

Yes. Peterborough Family Dental accommodates emergency patients and makes every effort to see urgent cases the same day. If you are experiencing a dental emergency in Peterborough, NH or the surrounding Monadnock region, call the office directly. The team will assess your situation over the phone and get you seen as quickly as possible.

For non-emergency situations where you are unsure of the urgency, calling and describing your symptoms is always the right move. The team can help you determine whether your situation warrants same-day attention or can be addressed at an upcoming scheduled appointment. To reach the office, call directly or visit peterboroughfamilydental.com/contact.

Results may vary. Please consult with your dentist at Peterborough Family Dental for personalized treatment recommendations.