Severe Toothache in Children: Causes, Treatments and Prevention

Quick Summary

Toothache in children is most commonly caused by dental decay, infection from untreated decay (dental abscess), or the eruption of permanent teeth, which typically begins around age 5 to 7 when the first adult molars emerge. Eruption discomfort is usually mild and settles on its own within a few days, but pain from decay or infection tends to worsen and should be assessed by a dentist. Warning signs that your child needs prompt dental care include facial swelling, fever, pain that wakes them at night, refusal to eat or drink, or a visible dark spot or hole on the tooth. Treating a painful baby tooth early matters because untreated infection can damage the developing permanent tooth underneath, and premature loss of a baby tooth can cause neighbouring teeth to drift and block the adult tooth from coming through. While waiting for a dental appointment, give age-appropriate paracetamol if not allergic to (never aspirin for children), apply a cold compress to the outside of the cheek, and rinse gently with warm salt water if your child is old enough to spit. To have your child’s toothache assessed at Pure Dentistry in Upper Mt Gravatt, Brisbane, call (07) 3343 4869.

Severe Toothache in Children

My Child Has a Severe Toothache. Do They Need a Tooth Extraction?

A severe toothache in children can turn even the toughest kid into a crying mess and leave parents wondering if they need to contact an Emergency Dentist Brisbane right away. The pain can come from many places — deep decay, a developing infection, a cracked tooth, or even the eruption of a permanent tooth, causing discomfort. The severity of your child’s tooth pain may be frightening, but it doesn’t automatically mean the tooth is on its way out. Most of the time, paediatric dentists in Brisbane can work out the cause and treat it in a way that keeps the tooth where it belongs.
toothache in children

Does a Severe Toothache in Children Always Mean a Tooth Extraction?

As Dr Ellie Nadian, our dentist for children in Brisbane, explains, if your child is experiencing a severe toothache, it doesn’t necessarily indicate the need for tooth extraction. Strong pain usually means something inside the tooth or the surrounding gum has reached its limit — decay pressing on the nerve, a hidden infection, or a crack that’s deeper than it first appeared. Kids’ dentists look at how the pain behaves, what they see in the mouth, and what the X-ray shows before deciding on anything.
Many sore teeth can be settled with treatments that keep them in place, like nerve therapy for baby teeth or a protective crown. Extraction is usually reserved for teeth that can’t be rebuilt safely or are causing an ongoing infection that won’t clear.
toothache in children

What Counts as a Severe Toothache in Children?

A severe toothache in a child isn’t just a mild sting or a quick, sharp moment of sensitivity. According to Dentists in Brisbane, intense tooth pain is the sort of pain that interrupts children’s usual pace — the kind that pulls them out of sleep or stops them halfway through a meal because they can’t chew. When pain keeps recurring or persists for more than a short period, it usually indicates that something deeper within the tooth or gum requires attention.

Signs the Toothache Is Considered Severe

  • Pain that is strong enough to wake your child during the night
  • Pain that stops them from eating, chatting, or playing normally
  • Pain that returns throughout the day or lasts longer than a day or two

Emergency Signs That Need Same-Day Care

  • Swelling in the face, especially near the eye or jaw
  • Fever or a child who seems unusually tired or unwell
  • Trouble swallowing or breathing
  • Redness or swelling that spreads quickly
  • A tooth that’s very loose or pushed out of position after an injury
toothache in children

Common Causes of Severe Toothache in Children

If your child has a bad toothache, it usually points to a problem deep within the tooth or nearby gum. The reason isn’t always obvious from the outside, but there are a few common problems that tend to trigger this kind of pain in children:

Deep Tooth Decay and Nerve Pain

When decay gets close to the nerve, the tooth becomes extremely sensitive. Kids might feel a sharp pain with cold drinks or a lingering ache that doesn’t settle. This is one of the most common reasons a tooth suddenly becomes unbearably sore.

Dental Abscess (infection)

If an infection forms around the root, the pain often feels deep, throbbing, and hard to ignore. You might notice swelling in the gum, a pimple-like spot, or a child avoiding one side of their mouth. This kind of infection is a well-known trigger for severe toothache.

Tooth Injuries

A chipped or cracked tooth from sport, a fall, or even bumping the mouth can expose the sensitive inner layers. Sometimes the outside looks almost fine, but the damage underneath still causes strong pain, especially when biting down.

Problems With New Adult Teeth Coming Through

When adult molars start to erupt, the gum around them can get inflamed or trap food. Older kids may feel pressure, tenderness, or pain that flares when chewing. In some cases, the gum can become infected, making the discomfort much more intense.

Please remember that none of this means that your child’s tooth automatically needs to come out. It just tells us something inside needs attention, so we can get your child comfortable again.

When We Usually Try to Save the Tooth

We prefer to keep your child’s tooth when it’s healthy enough to repair. If the roots are strong and the surrounding tissues aren’t badly infected, there are several treatments that can ease the pain and keep the tooth functioning normally.

Fillings and Protective Coatings

When decay hasn’t destroyed too much of the tooth, a filling can replace the damaged area and stop the pain. In deeper cavities, a protective dressing may be placed first to settle the nerve before a final filling is added.

Nerve Treatment for Sore Baby Teeth (Pulp Therapy)

If decay has reached the nerve but the tooth is still worth saving, pulp therapy removes the irritated part of the nerve and seals the space so the tooth can stay in place longer. We may do a pulpotomy (treating the top part of the nerve) or a pulpectomy (cleaning the entire canal), depending on how damaged the nerve is.

Crowns for Baby Teeth

When a baby molar is badly broken down but still repairable, a stainless-steel crown can cover and protect it. Crowns are often chosen over large fillings because they’re stronger and last longer in young children who chew heavily.

Pain Relief and Antibiotics: What They Can and Cannot Do

Paracetamol or ibuprofen can help ease pain while your child waits for treatment, as long as dosing follows medical and label instructions. Antibiotics are only helpful when there’s a spreading infection; they don’t fix the decay itself, so dental treatment is still needed to solve the problem.
toothache in children

When a Tooth Extraction Is the Safer Choice

There are times when keeping your child’s tooth simply isn’t the healthier option anymore. Dentists only recommend removing a tooth when repairing it wouldn’t last or when leaving it in place could keep causing pain or infection.

Severe Decay with Very Little Tooth Left

If the tooth has broken down so much that there’s not enough structure left to support a filling or a crown, saving it just isn’t reliable. In these cases, removing the tooth prevents repeated pain and avoids treatments that won’t last.

Large Infection or Swelling Around the Tooth

Some infections sit deep around the roots and keep flaring up, even after earlier treatment. When swelling spreads or the tooth continues to cause strong, throbbing pain, taking the tooth out removes the source of the infection and helps your child recover.

Loose Baby Teeth Causing Ongoing Pain or Infection

A baby tooth that’s already on its way out can sometimes become wobbly and irritated, leading to gum swelling or repeated infections. Removing it early often brings quick relief and avoids unnecessary discomfort.

Crowding and Orthodontic Reasons

If your child’s jaw doesn’t have enough room for all the teeth, an orthodontist may recommend removing a baby or adult tooth to guide the bite into a healthier position. This is usually a planned part of treatment rather than an urgent decision.

Badly Broken Teeth After Trauma

A tooth that’s cracked beneath the gum, pushed into the bone, or damaged at the root can’t always be rebuilt safely. In these moments, removing the tooth protects the surrounding area and prevents long-term complications.
Little girl at the dentist's with her mother.

Baby Teeth vs Adult Teeth: How Decisions Are Different

Baby teeth and adult teeth play very different roles, so the way dentists approach treatment depends heavily on which type of tooth is involved.

Why Baby Teeth Still Matter

Even though baby teeth eventually fall out, they’re important for everyday comfort. They help children chew properly, learn clear speech sounds, and hold the right amount of space for the adult teeth waiting underneath. When a baby tooth is healthy, it supports normal growth and makes eating far easier.

When Taking Out a Baby Tooth Early Is Reasonable

If a baby tooth is already close to falling out or is causing ongoing pain or infection, removing it early can be the kinder option. In these moments, keeping the tooth often brings more discomfort than benefit, and taking it out usually helps the child feel better sooner.

Why Dentists Work Hard to Save Adult Teeth

Adult teeth are permanent. Once one is lost, the mouth changes in ways that affect chewing, alignment, and sometimes appearance. That’s why dentists use every realistic option to repair an adult tooth before considering removal. Losing an adult tooth often means thinking about replacement options later on.

Space Maintainers and Follow-Up After Early Loss of Baby Teeth

If a baby tooth needs to be removed earlier than expected, a dentist might suggest a small device called a space maintainer. It holds the gap open so the adult tooth has the room it needs when it’s ready to come through. Not every child needs one, but when they do, it helps prevent crowding and future orthodontic issues.
toothache in children

What Happens During a Child’s Tooth Extraction

Getting Your Child Ready for the Visit

Parents don’t need to give a long explanation. A simple, honest line like “the dentist is going to make your sore tooth stop hurting” is enough. Keeping your words light can often help your child walk in without unnecessary worry.

Numbing the Tooth and Helping Your Child Stay Calm

Before anything happens, the dentist numbs the area with a local anaesthetic so your child doesn’t feel sharp pain. They may notice pressure or movement, but not the actual extraction. We take things slowly, explain each step in age-appropriate language, and give the child breaks if they need them. Some kids prefer a distraction like a favourite show or holding a parent’s hand, and all of that is welcomed.

Our Sedation and General Anaesthetic Options for Children

Some children cope better with a little extra support. Laughing gas or “happy gas” — helps kids stay relaxed while staying awake and responsive. For children who need several teeth removed, are extremely anxious, or have medical or special-needs considerations, Sleep Dentistry in Brisbane through a general anaesthetic may be recommended so the treatment can be completed more smoothly.
Brisbane Dental Sleep Clinic suggests that sleep dentistry can be helpful when providing dental care for children with dental anxiety or adults who need dental procedures like dental implant surgery, wisdom teeth removal, or root canal therapy, but have dental fear.

The Tooth Extraction Procedure

Once the area is numb and your child is settled, the dentist gently loosens the tooth and lifts it out. Baby teeth often come out quickly because their roots are naturally shorter. The dentist then places a small piece of gauze for your child to bite on, and after a short wait, you’re ready to head home.

Looking after Your Child After a Tooth Extraction

Bleeding Control and When to Worry

After the extraction, your child will bite on a small piece of gauze to help the area clot. A little pinkish oozing over the next hour or two is normal. What isn’t normal is bleeding that stays bright red or doesn’t slow down after firm pressure — that’s when it’s worth calling the dentist for advice.

Eating, Drinking and Tooth Brushing After the Procedure

Soft, cool foods are easiest for the first day — yoghurt, mashed veg, smoothies without straws. Avoid hot drinks because heat can disturb the clot. Brushing can continue as normal everywhere else in the mouth, but it’s best to stay gentle around the extraction site for a day or two.

Pain Relief at Home and Safe Dosing

Most children only need paracetamol or ibuprofen once the numbness fades. Always follow the dosage on the label or the guidance given by your dentist or doctor, and avoid aspirin in children. Checking doses by weight helps make sure your child gets enough to stay comfortable without overdoing it.

Signs You Should Call the Dentist Again

If the pain gets worse after two or three days, if your child develops a strong smell coming from the socket, or if you notice fever or swelling that’s increasing, it’s time to get the area rechecked. Older children and teens also have a small risk of dry socket, which shows up as worsening pain after the first couple of days rather than improvement.

Preventing Severe Toothache in Children

Preventing toothaches in children is largely about adopting small habits that support the teeth on a daily basis:

Daily Brushing, Fluoride, and Flossing

Brushing twice a day with fluoride toothpaste is still the strongest defence against decay. Flossing can start as soon as the teeth touch, which happens earlier than many parents expect. These small routines keep the enamel strong and stop plaque from settling where brushes can’t reach.

Food and Drinks That Raise the Risk of Tooth Decay

Kids love snacks, but teeth aren’t huge fans of constant grazing. Frequent sugary foods, sticky lollies, soft drinks, and juice in bottles or sippy cups give bacteria the fuel they need to create decay. Keeping sweet foods to set times rather than all day grazing makes a big difference.

Regular Dental Check-Ups and Fissure Sealants

Routine check-ups let dentists catch early changes before they turn into painful problems. For back teeth with deep grooves, fissure sealants add a thin protective layer that blocks food and bacteria from settling in those hard-to-clean areas.

Protecting Teeth During Sport

A custom-fitted mouthguard is one of the simplest ways to prevent cracked or knocked teeth during contact sports. They fit better, stay in place, and protect far more effectively than store-bought versions.
toothache in children

Care and Support for Children with Special Needs at Our Brisbane Clinic

Our paediatric dentist for special needs children in Brisbane welcomes children who have autism, ADHD, anxiety, sensory processing differences, and developmental or medical conditions. We allow extra time when it’s needed, offer quieter appointment times, and try to keep the same familiar staff involved so your child knows who to expect. Sleep Dentistry Brisbane can be used when it’s appropriate and safe. Parents are always encouraged to talk to Dr Ellie Nadian, our special needs dentist in Brisbane, about their child’s triggers, strengths, calming strategies, and communication style so we can shape the visit around what helps them feel settled.
Families with children who have special needs can also visit our page about: Dental Care for Children with Special Needs
toothache in children

Medical Disclaimer

The information in this article is general in nature and isn’t a substitute for personalised dental or medical advice. Every child’s situation is unique, so if your child is experiencing pain or you’re unsure about what to do, please consult a qualified dentist or healthcare professional for guidance tailored to their individual needs.

Learn What Your Child’s Tooth Needs Next!

If your child has been struggling with ongoing tooth pain, our team can take a look and guide you forward. To book a visit, call us on 07 3343 4869.