Seeing your child in pain can be worrying, especially when they are too young to explain exactly what hurts. Toothache in young children is a common concern for parents and can have several causes, ranging from normal tooth development to cavities, gum inflammation or dental infections that require professional attention.
Children’s teeth are constantly changing as they grow. Baby teeth begin to appear during infancy, and the transition to permanent teeth usually starts around the age of six. During these stages, children may experience different types of oral discomfort, but persistent toothache should never be dismissed as a normal part of growing up.
At Horley & Gatwick Dental Centre, we understand how important it is to make dental care a reassuring experience for both children and their parents. Our dental team takes a gentle, patient-centred approach, helping young patients feel comfortable while investigating the cause of their discomfort.
In this guide, we explain the most common causes of toothache in young children, how to recognise symptoms when your child cannot describe them, what you can safely do before a dental appointment and when urgent care may be necessary. We also explore how tooth decay affects baby teeth, why professional treatment is important and how preventive dental care can protect your child’s developing smile.
What are the most common causes of toothache in young children?
Toothache in young children can develop for several reasons, and the symptoms are not always easy for parents to interpret. A child might complain that a tooth hurts, refuse certain foods, become unusually irritable or repeatedly touch one side of their face. In younger children, changes in behaviour may be the first indication that something is wrong.
Tooth decay is one of the most common causes of persistent dental pain in children. Cavities develop when bacteria in dental plaque produce acids that gradually damage the outer surfaces of the teeth. If decay progresses into deeper tooth structures, it may cause sensitivity, discomfort and eventually significant pain.
However, tooth decay is not the only possible explanation. Several other conditions can affect a child’s teeth and surrounding tissues.
Common causes include:
- Tooth decay: Cavities can cause discomfort when eating and may eventually result in persistent toothache.
- Teething: The eruption of baby teeth can cause temporary gum tenderness, especially in infants and toddlers.
- Dental infections: Infection inside or around a tooth may cause severe pain, swelling or difficulty chewing.
- Dental injuries: Falls, accidents or biting hard objects can damage teeth and cause sensitivity.
- Gum inflammation: Plaque accumulation or local irritation may make the gums sore and swollen.
- New teeth erupting: The appearance of permanent teeth can occasionally cause localised discomfort.
- Teeth grinding: Clenching or grinding may contribute to tooth sensitivity, jaw discomfort or wear.
Sometimes children experience discomfort that seems to originate from a tooth but actually comes from another area, such as the ear or jaw.
For example, a child with an ear infection might describe the discomfort as toothache because they cannot identify exactly where the pain begins.
The location and intensity of pain alone are not enough to establish a diagnosis.
A dentist will consider the child’s age, dental development, symptoms and oral health history before examining the teeth and gums.
At Horley & Gatwick Dental Centre, our team aims to identify the underlying cause of discomfort and recommend appropriate treatment rather than simply addressing the symptoms.
If your child has persistent or recurring dental pain, arranging a professional assessment is the safest way to understand what is happening.
Discover our children’s dentistry and dental examination services.
How can tooth decay cause toothache in baby teeth?
Many parents associate cavities with permanent teeth, but baby teeth can develop tooth decay just as permanent teeth can.
In fact, primary teeth have thinner protective layers than adult teeth, meaning decay can sometimes progress relatively quickly once it has developed.
Tooth decay begins when bacteria in dental plaque use sugars from food and drinks to produce acids. These acids gradually remove minerals from the tooth enamel.
During the earliest stages, a cavity may not cause any noticeable symptoms.
Parents might observe white or brown marks on the tooth surface, although these changes do not always indicate decay and require professional assessment.
As the damage progresses, a visible hole may form and the child may begin experiencing discomfort.
For example, a young child might suddenly refuse cold drinks or complain that a particular tooth hurts when eating something sweet.
These symptoms may indicate that decay has reached the underlying dentine, a more sensitive layer beneath the enamel.
If decay continues towards the dental pulp, which contains nerves and blood vessels, the discomfort may become more intense or persistent.
Advanced tooth decay can eventually lead to inflammation or infection inside the tooth.
At this stage, a child may experience spontaneous pain, difficulty sleeping or discomfort when chewing.
It is important to understand that tooth decay does not always follow a predictable pattern of symptoms. Some children have relatively advanced cavities without complaining of significant pain.
This is one reason why regular dental examinations are important even when your child appears comfortable.
Several factors can increase the risk of childhood tooth decay, including frequent sugary snacks, sweetened drinks, inadequate brushing and going to sleep with milk or other drinks containing sugars remaining around the teeth.
At Horley & Gatwick Dental Centre, our dentists assess the extent of decay before recommending treatment.
Depending on the condition of the tooth, treatment may involve preventive measures, a filling or another procedure designed to manage the affected tooth appropriately.
Early diagnosis can help prevent minor dental problems from developing into more complex conditions.
Parents should never attempt to remove decay or treat cavities using homemade solutions. Only a dental professional can determine the extent of the damage and recommend suitable care.
Learn more about children’s restorative dentistry and cavity prevention.
Can teething cause toothache in babies and toddlers?
Teething is a natural stage of childhood development, but it can sometimes be difficult for parents to distinguish normal teething discomfort from another dental problem.
Most babies begin developing their first visible teeth at approximately six months of age, although the timing varies considerably.
Some children begin teething earlier, while others do not develop their first tooth until later in infancy.
As a tooth approaches the gum surface, the surrounding tissues may become slightly swollen or tender.
This can cause temporary discomfort, and babies may respond by chewing on toys, placing their fingers in their mouths or becoming more unsettled than usual.
Common signs associated with teething include increased chewing, drooling, mild gum tenderness and occasional irritability.
Some babies may also have difficulty settling, although these symptoms can have several explanations.
It is important not to attribute every change in your child’s behaviour to teething.
A high fever, persistent diarrhoea, significant facial swelling or severe ongoing pain should not be assumed to be normal teething symptoms.
If your child appears particularly unwell, a medical assessment may be necessary.
For children experiencing ordinary teething discomfort, parents can consider simple measures that do not involve medication.
For example, a clean teething ring cooled in the refrigerator may provide temporary relief by applying gentle pressure to the gums.
The ring should not be frozen, as an excessively hard or cold surface could damage delicate gum tissues.
Gently rubbing the gums with a clean finger may also help some babies feel more comfortable.
Avoid unapproved teething gels, homeopathic remedies, amber necklaces and other products that may present unnecessary risks.
Some teething products contain ingredients unsuitable for young children, while necklaces and similar items can create choking or strangulation hazards.
According to NHS guidance, suitable pain relief may occasionally be considered when simple measures are insufficient, but parents should follow age-specific instructions and seek advice from a pharmacist or healthcare professional.
If the discomfort continues, seems unusually severe or is accompanied by other concerning symptoms, a dental examination may help determine whether the problem is actually related to tooth eruption.
At Horley & Gatwick Dental Centre, we aim to support parents throughout the different stages of their child’s dental development.
Discover how children’s dental appointments support healthy tooth development.
Why should toothache in baby teeth never be ignored?
A common misconception is that dental problems affecting baby teeth are less important because these teeth will eventually fall out.
However, baby teeth play an essential role in a child’s oral health, development and everyday wellbeing.
Primary teeth help children chew food properly, support speech development and maintain the spaces needed for permanent teeth to emerge.
They also contribute to the development of the jaws and allow children to become accustomed to normal oral function.
When a baby tooth develops decay or infection, the consequences can extend beyond temporary discomfort.
For example, a child experiencing persistent toothache may avoid eating certain foods, particularly those that require significant chewing.
This can affect their dietary choices and make mealtimes stressful.
Dental pain can also interfere with sleep, concentration and participation in everyday activities.
In some cases, untreated decay may progress into the dental pulp and cause infection around the root.
An infection affecting a baby tooth requires professional assessment even if the tooth is expected to fall out in the future.
The timing of natural tooth loss varies according to the tooth involved.
While some baby teeth are replaced during early primary school years, others normally remain in place until approximately 10 to 12 years of age.
This means a cavity developing in a young child could affect a tooth that would otherwise be needed for several more years.
Premature loss of certain baby teeth can also create problems with spacing.
Neighbouring teeth may gradually move into the available space, potentially affecting the eruption pathway of the permanent replacement.
In selected circumstances, a dentist may recommend a space maintainer if a primary tooth must be extracted significantly earlier than expected.
However, not every lost baby tooth requires this type of appliance. The decision depends on the child’s age, dental development and the position of the missing tooth.
At Horley & Gatwick Dental Centre, we believe that preserving healthy primary teeth whenever clinically appropriate is an important part of children’s dentistry.
Our dental team evaluates the condition of each tooth and considers how treatment may influence the child’s future oral development.
If your child complains of toothache, do not wait for the tooth to fall out naturally. A professional examination can help establish whether treatment is needed and prevent avoidable complications.
Find out more about protecting your child’s baby teeth.
How can parents recognise toothache in children who cannot explain their pain?
Young children do not always have the language or understanding necessary to explain where they feel discomfort.
A toddler might point to their cheek, touch their mouth repeatedly or simply become upset without describing a particular symptom.
This can make toothache difficult to recognise, especially when there are no obvious changes in the appearance of the teeth.
Behavioural changes are often important clues when assessing possible dental pain in young children.
For example, a child who normally enjoys eating crunchy foods may suddenly prefer softer meals.
Another child might begin chewing exclusively on one side of their mouth or refuse drinks that are particularly cold.
Some children become unsettled during the night or wake more frequently because of discomfort.
However, these changes are not specific to dental problems and can also occur because of other illnesses or developmental factors.
Parents should therefore consider the child’s overall condition rather than relying on a single symptom.
Potential signs of toothache include:
- Changes in eating habits: Avoiding hard foods, chewing on one side or refusing meals.
- Unusual irritability: Becoming upset more frequently, particularly around mealtimes.
- Sleep disturbances: Difficulty settling or waking because of discomfort.
- Touching the face or mouth: Repeatedly rubbing the cheek or placing fingers near a particular tooth.
- Visible dental changes: Dark spots, broken teeth, swollen gums or unusual marks.
- Sensitivity: Crying or reacting when consuming cold, warm or sweet foods.
If your child is old enough to communicate, try asking simple questions without suggesting the answers.
For example, you might ask, “Can you show me where it hurts?” rather than assuming the discomfort comes from a particular tooth.
This can help the dentist understand the symptoms more accurately.
Avoid repeatedly pressing on the painful area or attempting to inspect deeply inside the mouth with sharp instruments.
If the child is distressed, forcing a detailed examination at home can increase anxiety and may cause accidental injury.
At Horley & Gatwick Dental Centre, we take a gentle approach when examining young patients.
Our dentists understand that some children need additional reassurance, time and simple explanations before feeling comfortable in the dental chair.
A parent may also be able to provide valuable information about when the discomfort began, what seems to trigger it and whether the child has experienced similar symptoms before.
A professional dental examination remains the most reliable way to determine whether behavioural changes are connected to an oral health problem.
Explore our gentle approach to children’s dental examinations.
What happens when a young child develops a dental infection or abscess?
A dental infection is one of the more serious possible causes of toothache in young children and should always be assessed promptly.
An infection may develop when bacteria enter the inner structures of a tooth through deep decay, a fracture or another form of damage.
If the infection extends beyond the root canal system, it may affect the surrounding tissues and lead to the formation of a dental abscess.
A dental abscess is a collection of pus caused by bacterial infection and requires urgent professional care. It will not reliably resolve without appropriate treatment.
Symptoms can vary depending on the child’s age, the affected tooth and the extent of the infection.
Some children experience persistent throbbing pain, while others develop tenderness when biting or chewing.
Parents may notice swelling around the affected gum, a small raised area resembling a pimple or an unpleasant taste in the child’s mouth.
In more advanced cases, swelling may affect the cheek or jaw.
A child might also develop a fever or appear generally unwell.
It is important to recognise that the intensity of pain does not always reflect the severity of an infection.
For example, discomfort may temporarily decrease if an abscess begins to drain. However, this does not mean that the infection has disappeared.
The underlying problem still requires dental assessment.
Treatment depends on the affected tooth, the extent of infection and the child’s stage of dental development.
In some situations, a dentist may consider treatment aimed at preserving the tooth.
In others, extraction may be necessary if the tooth cannot be restored safely.
Antibiotics are not automatically required for every dental infection and do not replace treatment of the underlying cause. They may be prescribed when clinically indicated, particularly if there are signs of spreading infection or systemic illness.
Parents should never attempt to drain an abscess, puncture swollen gum tissue or give leftover antibiotics to a child.
These actions can delay effective treatment and create additional risks.
If your child has toothache accompanied by facial swelling, fever or signs of a dental abscess, seek urgent dental advice.
If swelling affects breathing, swallowing or speaking, or extends towards the eye with concerning symptoms, seek emergency medical attention immediately by calling 999 or attending A&E.
At Horley & Gatwick Dental Centre, we aim to assess dental emergencies promptly and recommend the most appropriate clinical care.
Learn more about emergency dental care for children.
Can a fall or dental injury cause toothache in young children?
Children are naturally active, and minor accidents are a common part of growing up.
Learning to walk, playing outdoors, participating in sports and exploring new environments can occasionally result in falls or impacts affecting the mouth.
A dental injury may cause immediate pain, but some injuries produce relatively few symptoms at first.
Trauma can affect both baby teeth and permanent teeth, and the appropriate management depends on the type of injury and the child’s age.
For example, a fall might cause a small chip in the edge of a front tooth.
Another child may experience a more significant fracture exposing sensitive internal tooth structures.
In some situations, a tooth may become loose, move from its normal position or be pushed into the surrounding gum.
These injuries require professional assessment because the visible damage may not fully reflect the extent of the trauma.
A dentist may need to evaluate the tooth, surrounding soft tissues and supporting structures.
Dental imaging may occasionally be necessary to investigate root damage or other complications.
If your child experiences a dental injury, try to remain calm and check for bleeding, swelling or visible changes in the position of the teeth.
Avoid attempting to push a displaced tooth back into place yourself.
If a baby tooth is completely knocked out, it must not be replanted, as doing so could damage the developing permanent tooth underneath.
If a permanent tooth is knocked out, the situation is different and requires immediate emergency dental advice. Prompt management is particularly important for improving the chance of preserving the tooth.
When handling a knocked-out permanent tooth, avoid touching the root. Depending on the child’s age, cooperation and circumstances, appropriate emergency measures may include keeping it moist in a suitable storage medium while obtaining urgent care. Follow emergency dental guidance and never force reimplantation in an uncooperative child.
Other injuries, such as cuts to the lips or gums, may also require attention.
Even if the initial discomfort improves, a traumatised tooth should be monitored because complications can occasionally develop later.
At Horley & Gatwick Dental Centre, our dental team can assess injuries involving children’s teeth and recommend appropriate treatment or follow-up care.
Discover our emergency dentistry and dental injury assessment services.
How can you relieve toothache in young children while waiting for the dentist?
When your child experiences toothache, your first instinct may be to find something that provides immediate relief.
Although certain measures can help your child feel more comfortable temporarily, home care should never replace professional dental treatment when pain persists or an underlying dental problem is suspected.
The most appropriate approach depends on the child’s age, symptoms and general health.
If your child has mild discomfort and is otherwise well, offering soft foods may help reduce pressure on a sensitive tooth.
Foods such as yoghurt, scrambled eggs or soft vegetables may be easier to eat than hard or crunchy alternatives.
Very hot, cold or sugary foods and drinks may aggravate sensitivity and are best avoided if they trigger discomfort.
Encourage your child to continue drinking water and maintain oral hygiene as comfortably as possible.
Brushing should not be abandoned simply because a tooth is sensitive. Plaque accumulation may worsen gum inflammation and contribute to further dental problems.
However, cleaning should be gentle, using an age-appropriate soft toothbrush.
For discomfort that requires pain relief, children’s paracetamol or ibuprofen may be appropriate when suitable for the child’s age and medical circumstances.
Always follow the product instructions and seek advice from a pharmacist or healthcare professional if you are uncertain about the appropriate medicine or dose. Do not give children under 16 aspirin unless specifically prescribed by a doctor.
Avoid placing aspirin directly against the affected tooth or gum, as this can cause tissue irritation or burns.
Other homemade remedies, including applying alcohol, essential oils or concentrated herbal preparations to the gums, should also be avoided.
These substances may damage delicate tissues and are not reliable treatments for dental infections or cavities.
Young children should not be encouraged to use saltwater mouth rinses if they cannot reliably spit out the liquid.
If your child has a dental abscess, swelling or significant pain, do not delay arranging professional care while experimenting with remedies.
Dental pain that interferes with sleep, eating or ordinary daily activities warrants prompt assessment, particularly when it does not respond to appropriate pain relief.
At Horley & Gatwick Dental Centre, we aim to identify the cause of discomfort and recommend treatment suited to your child’s individual needs.
Find out more about professional care for children’s toothache.
How does the dentist treat toothache in young children?
The treatment of toothache in young children depends on the underlying cause, the condition of the affected tooth and the child’s stage of dental development.
A dental examination is therefore essential before deciding which procedure, if any, is appropriate.
At Horley & Gatwick Dental Centre, our approach begins with listening to the parent and child, understanding the symptoms and conducting a gentle assessment.
The aim is to identify the cause of pain while helping the child feel safe and comfortable throughout the appointment.
The dentist may begin by examining the affected tooth and surrounding gums, looking for visible cavities, fractures, swelling or signs of infection.
Depending on the clinical findings, dental X-rays may be recommended to assess areas that cannot be examined visually.
If the discomfort is caused by an early cavity, the dentist may discuss preventive measures or restorative treatment according to the extent of decay.
When decay has created a cavity requiring repair, a dental filling may help restore the tooth’s structure and function.
If the damage has reached the dental pulp, more extensive treatment may be necessary.
In certain cases involving baby teeth, a procedure designed to manage the affected pulp may allow the tooth to remain functional.
However, if the tooth is severely damaged, infected or cannot be predictably restored, extraction may be the most appropriate option.
The dentist will consider the child’s dental development and the potential consequences of removing a baby tooth before making a recommendation.
Not every painful tooth needs to be extracted, and not every cavity requires the same treatment.
For children with dental injuries, treatment may involve smoothing a small chip, restoring a fractured tooth or monitoring the affected area.
Where gum inflammation is responsible for the discomfort, professional cleaning and improvements to daily brushing may help address the cause.
An important part of children’s dentistry is communication.
Young patients may feel uncertain about dental instruments or unfamiliar procedures, particularly if they have never visited a dentist before.
Our team aims to explain each stage using simple language and a reassuring approach appropriate to the child’s age.
Parents can also play a valuable role by remaining calm, encouraging questions and avoiding language that may increase fear.
At Horley & Gatwick Dental Centre, we believe that positive early dental experiences can help children develop confidence in professional oral healthcare.
Explore our children’s dentistry and restorative dental treatments.
How can parents prevent toothache in young children?
Although not every cause of childhood toothache can be prevented, developing healthy habits from an early age can significantly reduce the risk of dental decay and some gum problems.
Prevention begins as soon as the first baby tooth appears.
Brushing twice daily with fluoride toothpaste is one of the most important habits for protecting children’s teeth.
The quantity and strength of toothpaste should be appropriate for the child’s age and individual risk of decay.
In the UK, children under three should generally use a smear of fluoride toothpaste containing at least 1,000 parts per million (ppm) fluoride.
Children aged three to six should generally use a pea-sized amount containing more than 1,000 ppm fluoride, with higher-strength products considered where professionally indicated.
Parents should supervise brushing and help young children clean their teeth effectively.
Even when children begin brushing independently, they often lack the manual dexterity needed to reach every surface properly.
Encourage your child to spit out excess toothpaste rather than rinsing thoroughly with water, as this helps the fluoride remain in contact with the teeth.
Dietary habits are equally important.
Frequent consumption of sugary snacks and drinks increases the risk of tooth decay because bacteria repeatedly produce acids that affect the enamel.
Try to limit sugary foods and drinks, particularly between meals.
Water and plain milk are generally appropriate drink choices for children, depending on their age and dietary needs.
Avoid allowing children to fall asleep with bottles containing sugary drinks or milk remaining in prolonged contact with their teeth.
Another important preventive measure is introducing dental appointments early in childhood.
In the UK, parents are encouraged to arrange a child’s first dental visit when the first teeth appear and by their first birthday.
Early appointments allow the dentist to assess dental development, provide preventive advice and help children become familiar with the dental environment.
Regular examinations can also identify signs of decay or other problems before they develop into painful conditions.
The frequency of dental check-ups should be determined according to the child’s individual oral health and risk factors.
Some children may require more frequent monitoring, while others may be suitable for longer intervals.
At Horley & Gatwick Dental Centre, our team can support parents with practical advice on brushing, diet and preventive dental care.
Healthy habits established during childhood can provide a foundation for maintaining good oral health throughout life.
Discover our preventive dentistry and oral hygiene services for children.
Toothache in young children: when should you book a dental appointment?
Understanding when to seek professional care is particularly important because young children may struggle to explain the severity of their symptoms.
Occasional mild discomfort associated with tooth eruption may settle without dental treatment, but persistent, recurring or unexplained toothache should be assessed.
Parents should contact a dentist promptly if their child experiences pain that continues, repeatedly returns or interferes with eating, sleeping or normal daily activities.
Other warning signs include visible cavities, damaged teeth, swollen gums or discomfort when biting.
Toothache accompanied by facial swelling, fever or a suspected dental abscess requires urgent professional advice.
If your child has difficulty breathing or swallowing, significant swelling inside the mouth or swelling affecting the eye, seek emergency medical care immediately.
Even when the symptoms appear mild, it is important not to rely on pain relief alone without investigating the cause.
For example, a cavity may continue progressing even if the discomfort temporarily disappears.
Similarly, an infection may remain present despite an improvement in pain.
At Horley & Gatwick Dental Centre, our dental team takes a careful and reassuring approach to examining young patients.
We understand that a child’s first experience of dental pain can be stressful for the entire family.
By assessing the problem, explaining the findings and recommending suitable treatment, we aim to help parents make informed decisions about their child’s oral health.
Toothache in young children: final considerations
Toothache in young children can have several causes, including tooth decay, teething, gum inflammation, dental injuries and infections.
Although some discomfort may be temporary, persistent dental pain should never be ignored, particularly when accompanied by swelling, fever or changes in eating and sleeping habits.
Baby teeth play an essential role in chewing, speech development and maintaining the space needed for permanent teeth. Protecting them through regular dental examinations, suitable oral hygiene habits and timely professional treatment is therefore an important part of childhood healthcare.
At Horley & Gatwick Dental Centre, we believe that caring for children’s smiles means combining clinical attention with patience, understanding and clear communication.
Our team aims to make dental appointments a reassuring experience for young patients while helping parents understand how to protect their children’s developing teeth.
If your child is experiencing toothache, has developed unusual dental symptoms or needs a routine oral health assessment, contact Horley & Gatwick Dental Centre to book an appointment and receive personalised advice about their dental health.
At Horley & Gatwick Dental Centre, patients are guided through each stage of the process with a careful and personalised approach, helping them manage treatment in a calm and informed way.
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💬 +44 7934895665
✉️ reception@horleyandgatwickdental.com
📍 33 Massetts Road, Horley RH6 7DQ, UK
