Medically Reviewed by Dr. Robert Bagoff on September 3, 2026
Tooth pain in children usually traces back to one of a handful of causes: an erupting tooth, a cavity, an injury, or an infection. Because young children often struggle to describe or pinpoint their discomfort, a change in mood, appetite, or sleep can be the first sign parents notice, well before a child says the word “toothache.”
As a parent, recognizing the common causes helps you decide how quickly your child needs to be seen and what you can safely do at home in the meantime. At Bagoff Dental Arts, our team sees children of every age, and prompt care makes both the diagnosis and the treatment easier on your child.
What Causes Children’s Tooth Pain?
Tooth pain in children can arise from several sources. Here are the most common reasons for tooth discomfort:
- Tooth Eruption: This happens with both baby teeth and permanent teeth as they push through the gums, which can make chewing painful and cause sensitivity to hot and cold temperatures. This pain usually subsides once the tooth fully emerges.
- Loose Teeth: While loose baby teeth are a normal part of growing up, they can sometimes cause discomfort as they become wobbly. If the pain is due to a loose adult tooth, it may indicate a more serious issue, such as an injury or infection, requiring prompt dental attention.
- Tooth Decay: Early-stage decay may not cause noticeable discomfort, but as cavities grow larger, they can cause sensitivity and pain. Regular brushing and check-ups are essential to prevent cavities from progressing.
- Diet: Hard foods or those high in sugar and acid can lead to discomfort, especially for children with sensitive teeth or existing dental issues.
- Aggressive Brushing: Brushing too aggressively or too frequently wears down tooth enamel, leading to increased sensitivity and pain. Firm-bristled toothbrushes can also irritate a child’s gums.
- Clenching or Grinding (Bruxism): Some children clench or grind their teeth, often at night. This behavior can lead to jaw pain, eroded enamel, and overall tooth sensitivity.
- Damaged Teeth: Injuries from sports or rough play can cause chipped, cracked, or broken teeth, resulting in pain. These injuries are not always visible, but tooth discomfort after an accident should prompt a visit to the dentist.
- Gum Disease: Though more common in adults, gum disease can affect children too. Swollen or infected gums can lead to tooth pain, especially if the infection spreads.
- Tooth Abscess: Untreated cavities or infections can sometimes lead to an abscess, a painful infection in the tooth or gums. If your child’s toothache is accompanied by swelling, fever, or throbbing pain, it could signal an abscess that requires immediate dental care.
When Tooth Pain Is a Dental Emergency
Most childhood tooth pain can wait for a scheduled appointment, but a few signs mean you should seek care the same day. Facial swelling, a fever alongside mouth pain, a knocked-out or badly displaced tooth, or pain severe enough to stop your child from eating or sleeping all warrant an urgent visit rather than a wait-and-see approach. An untreated abscess in particular can allow infection to spread beyond the tooth, so swelling or fever should never be ignored.
7 Ways to Help a Child’s Toothache at Home
When your child experiences a toothache, it can be distressing for both of you. Fortunately, there are several ways to help alleviate their discomfort while you arrange a dental visit:
- Rinse with Warm Salt Water: A rinse with warm salt water helps reduce inflammation and soothe irritated gums. Have your child swish the solution around their mouth for 30 seconds.
- Cold Compress: If the toothache is accompanied by swelling, a cold compress applied to the outside of the cheek can reduce inflammation and numb the pain. Apply ice or a cold pack in 15-minute intervals.
- Over-the-Counter Pain Relief: Children’s pain relievers, such as ibuprofen or acetaminophen, can reduce tooth pain and any accompanying fever or swelling. Follow dosage instructions or consult a healthcare professional.
- Numbing Gel: Over-the-counter numbing gels designed for oral pain can provide temporary relief. Choose a product made specifically for children and follow the directions carefully.
- Avoid Hard or Sugary Foods: Until the toothache subsides, avoid hard, chewy, or sugary foods that could aggravate the pain. Soft foods like yogurt, applesauce, or smoothies minimize discomfort.
- Maintain Gentle Oral Hygiene: Encourage your child to keep brushing and flossing, but gently, to avoid further irritating the tooth or gums.
- Schedule a Dental Appointment: Home remedies provide temporary relief, but a dental visit is what addresses the root cause of the toothache.
Helping Your Child Avoid Future Toothaches
Twice-daily brushing with a fluoride toothpaste, daily flossing once teeth touch, limiting sugary snacks and drinks between meals, and keeping to a six-month cleaning schedule are the most reliable ways to prevent the cavities and gum irritation that cause most childhood tooth pain. A properly fitted mouthguard for sports also protects against the chipped and cracked teeth that come from contact play.
Relieve Your Child’s Tooth Pain with Bagoff Dental Arts
Tooth pain in children can be distressing for both parents and kids, and addressing the issue quickly is crucial. At Bagoff Dental Arts, we provide compassionate dental care designed to keep your child’s teeth healthy and pain-free. Whether the discomfort is caused by tooth eruption, decay, or a damaged tooth, our team is here to help identify the root cause and provide effective treatment options.
Don’t wait out a toothache that isn’t improving. Reach out through our contact form to schedule an appointment and get your child’s smile back on track.
Frequently Asked Questions About Children’s Tooth Pain
When should I take my child to the dentist for tooth pain?
Mild discomfort from an erupting tooth can often be managed at home for a day or two, but pain that persists, worsens, or comes with swelling or fever should be evaluated promptly. Any pain following an injury to the mouth or teeth should also be checked right away.
Is it normal for baby teeth to hurt as they come in?
Some discomfort and gum irritation during teething is normal and typically subsides once the tooth fully emerges. Persistent crying, fever, or pain that lasts well beyond the eruption period is less typical and worth mentioning at your child’s next visit.
Can a cavity in a baby tooth cause real pain?
Yes. Baby teeth have nerves just like permanent teeth, and an untreated cavity can become just as painful, and can progress to an abscess if left alone. Baby teeth also hold space for permanent teeth, so treating decay early matters even though the tooth is not permanent.
What is a sign my child’s toothache is actually an abscess?
Swelling in the face or gums, fever, and throbbing pain that does not respond to over-the-counter pain relief are the classic signs of a dental abscess. This combination warrants same-day dental care rather than waiting for a scheduled appointment.
Can grinding at night cause tooth pain in kids?
Yes. Many children clench or grind their teeth during sleep, and over time this can wear down enamel and lead to jaw pain and tooth sensitivity. Most children outgrow the habit, but a dentist can check for enamel wear and recommend a night guard if grinding is frequent.
About the Author
Dr. Robert Bagoff
Bagoff Dental Arts
Dr. Robert Bagoff has spent his career providing compassionate general and family dental care to children and adults in West Orange, New Jersey and the surrounding communities.
