My Child Has a Swollen Face or Jaw — Is It a Dental Emergency?

If your child woke up with a puffy cheek, or their face seems swollen near the jaw or under the eye, your instinct to be concerned is right. Facial swelling in children is a warning sign that something is wrong — and in many cases, the source is a dental infection.

This is one of the most urgent pediatric dental situations we see at Tiny Trips Pediatric Dentistry in Frederick, MD, and it is one that parents most commonly mistake for an allergic reaction or sinus issue. Here is what you need to know.

What causes facial swelling in children related to teeth?

The most common cause is a dental abscess — a pocket of infection that forms at the root of a tooth or in the gum tissue. This usually starts as an untreated cavity or a cracked tooth that allows bacteria to reach the inner pulp of the tooth. The infection then spreads into the surrounding tissue, which causes swelling.

Facial swelling can also be caused by:

• A severely infected tooth that has not been treated
• An injury to the mouth or jaw that became infected
• An impacted or erupting tooth with complications
• A gum infection (less common in children but possible)

How do I know if my child's swelling is dental?

Look for these signs alongside the swelling:

• Toothache or sensitivity in a nearby tooth
• Fever — this is a serious sign the infection may be spreading
• Bad taste in the mouth or pus near the gum line
• Difficulty opening the mouth, chewing, or swallowing
• The swelling is on one side of the face, near the jaw or cheek

If your child has swelling plus fever, difficulty swallowing, or the swelling is spreading toward the eye or neck, treat this as an urgent medical situation and go to the emergency room immediately. These are signs the infection may be spreading beyond the teeth.

Can a dental infection be dangerous for a child?

Yes. Dental infections in children can spread rapidly. The jaw and face are close to vital structures, and an untreated abscess can move into the neck, airway, or even the brain in severe cases. This is rare, but it is the reason we treat facial swelling as an emergency — not something to watch and wait on.

Do not give your child antibiotics from a previous prescription and assume the problem is handled. Antibiotics alone do not eliminate a dental abscess — the source of infection must be treated by a dentist.

What will Dr. Jian do?

When you bring your child in, Dr. Jian will examine the teeth and gums, take an X-ray to locate the source of infection, and create a treatment plan. Depending on the severity, this may involve:

• Draining the abscess to relieve pressure and pain
• A pulp therapy procedure (similar to a root canal for children) to save the tooth
• Extracting the tooth if it cannot be saved
• Prescribing antibiotics to address the infection

Our team works gently and patiently with children, and we will explain every step in kid-friendly terms so your child feels as comfortable as possible.

Kids' dental emergency?
Don't wait.