The sound of grinding teeth, technically known as bruxism, can be quite unsettling for any parent. A slew of concerns often arise when the nighttime silence is punctuated by that unmistakable noise emanating from a child’s room. Bruxism is more common in children than many realise. It’s estimated that a significant percentage of youngsters exhibit this behaviour, particularly during their sleep. But why do kids grind their teeth? Is it a mere developmental phase or a sign of underlying issues? As we dive into this comprehensive exploration, we’ll uncover the reasons behind this phenomenon, shedding light on its potential implications and offering guidance for concerned guardians. Understanding bruxism is crucial, not just for dental health but also for the overall well-being of our young ones. Stay with us to unravel the mysteries of teeth grinding in children.

What is Teeth Grinding?

Teeth grinding is a phenomenon that many have heard of, but few understand in depth. From its intricate patterns to the potential implications, let’s delve into the world of this common yet curious behaviour.

The Unconscious Grind

For many, grinding teeth remains a mostly unconscious endeavour, only coming to the fore when mentioned by a sleeping partner or dentist. But what lies behind this often involuntary act?

The Definition and Actions

As teeth grinding is scientifically termed, bruxism denotes the habitual or involuntary clenching, grinding, or gnashing of teeth. This can manifest in two primary ways:

  • Grinding: A back-and-forth jaw movement that causes the upper and lower teeth to rub against each other, often producing a distinctive sound.
  • Clenching: A silent but forceful biting down where the top and bottom teeth are pressed together, exerting pressure but without the grinding motion.

Day vs. Night: Two Main Occurrences

Teeth grinding occurs both during wakefulness and sleep:

  • Awake Bruxism: Often a reflexive response to stress, anxiety, concentration, or certain habits. It’s usually a semi-voluntary act, and individuals might be partially aware of their actions.
  • Sleep Bruxism: This form is more subconscious, occurring as one sleeps. It’s linked to sleep-related disorders and physiological processes that remain largely under investigation.

The Impact on Dental Health

While occasional teeth grinding might not raise alarm bells, its chronic occurrence can lead to several complications:

  • Wear and tear the protective enamel, exposing the more sensitive parts of the tooth.
  • Increased risk of tooth breakage or chipping.
  • Jaw pain and potential temporomandibular joint disorders.
  • Headaches and earaches often result from the persistent pressure exerted during clenching.

Common Reasons Kids Grind Their Teeth

Teeth grinding, or bruxism isn’t just limited to adults. Children, especially in their younger years, often exhibit this behaviour. But what prompts these little ones to grind their pearly whites? Let’s dive into some of the primary reasons.sleep bruxism campbelltown

Growth and Development

Just as kids go through numerous physical changes, their oral cavity also undergoes significant shifts. As their jaws grow and baby teeth give way to permanent ones, the alignment and fit of their teeth may not be perfect. This misalignment can lead to nighttime grinding as the body subconsciously adjusts to the new oral structure.

Stress and Anxiety

Children are not immune to the world’s pressures and worries. These stressors can manifest physically as bruxism, whether starting a new school, adapting to a sibling, or even just an overstimulated day. Grinding or clenching can be their body’s response to or processing emotions they might not fully understand.

Sleep Disorders

Certain sleep-related disorders, like sleep apnea or restless leg syndrome, are often linked with bruxism. If a child is experiencing interrupted sleep patterns, teeth grinding might accompany those disruptions.

Dental Issues

Sometimes, the cause is as straightforward as discomfort from teething or an oral irritation. A misaligned bite or incoming teeth can cause a child to grind or clench, seeking relief.

Habitual Behaviour

Just as some children suck their thumbs for comfort, other children grind their teeth as a reflexive or habitual action. It is a phase or a comfort mechanism they turn to in certain situations.

Potential Consequences of Teeth Grinding

Teeth grinding, while seemingly harmless at first glance, can lead to a cascade of complications if left unchecked. Chronic bruxism, especially in children, has both immediate bruxism-term ramifications.

Dental Damage:

The most obvious consequence is the wear and tear on teeth. Constant grinding erodes the protective enamel, increasing the risk of cavities, tooth sensitivity, and even tooth loss. Over time, teeth might appear flattened, fractured, or chipped.

Jaw Complications:

Prolonged clenching places immense stress on the jaw muscles and joints. This can result in temporomandibular joint disorders (TMD), characterised by jaw joint pain, difficulty opening or closing the mouth, and even lockjaw.

Sleep Disruption:

Nighttime bruxism can lead to fragmented sleep. Children might grind their teeth more frequently, leading to daytime fatigue and difficulty concentrating.

Headaches and Earaches:

The consistent pressure exerted during grinding can strain the temporalis muscle, leading to tension headaches. The proximity of jaw muscles to the ear can also result in earaches.

Emotional Impact:

Beyond the physical effects, chronic teeth grinding can cause children to feel self-conscious, especially if they become aware of the grinding noises they make or if they face dental issues.

How to Identify if Your Child is Grinding Their Teethchilds teeth grinding campbelltown

Detecting bruxism in children is pivotal for early intervention. The sound of grinding can be a direct giveaway, but there are other subtle indicators parents should be aware of:

  1. Audible Grinding at Night: Often the most obvious sign, if you hear your child grinding their teeth while they sleep, it’s a clear indication of nighttime bruxism.
  2. Complaints of Jaw or Facial Pain: Upon bruxism, a child might complain of soreness in their jaw, face, or even temples. This discomfort results from the pressure exerted during grinding.
  3. Tooth Sensitivity: If your child complains about pain or discomfort while consuming hot, cold, or sweet foods and drinks, it may be due to worn-down enamel from grinding.
  4. Worn Down or Chipped Teeth: Upon inspecting your child’s teeth, you might notice they appear flattened, worn down, or even chipped in some cases.
  5. Morning Headaches: Persistent morning headaches can be attributed to the tension from nighttime grinding.
  6. Enlarged Jaw Muscles: Chronic grinders might develop enlarged or more defined jaw muscles due to constant activity.
  7. Tired or Tight Jaw Muscles: Your child may complain of fatigue or tightness in their jaw, especially upon waking.

Management and Treatment Options

Teeth grinding, known medically as bruxism, can have various consequences if left untreated, several management and treatment options can help curb this habit and mitigate its effects, especially in children.

1. Dental Interventions:

  • Mouth Guards and Dental Splints: One of the most common treatments, dentists custom-made devices to fit the child’s mouth. They create a barrier between the upper and lower teeth, preventing direct contact and reducing wear and tear. Besides, they can alleviate jaw pain by distributing the force of clenching.
  • Corrective Dental Treatment: If misaligned teeth or an abnormal bite is causing the bruxism, orthodontic treatments might be recommended. Space maintainers or other dental devices can help align the teeth correctly.

2. Behavioural Therapies:

  • Stress-Reduction Techniques: Since stress and anxiety can trigger bruxism in children, techniques like deep breathing, guided imagery, and even counselling can be beneficial.
  • Habit-Reversal Training: This involves making the child aware of the teeth clenching or grinding habit and teaching them techniques to break the pattern. Over time, consistent reinforcement can replace the habit with a more neutral or positive one.
  • Biofeedback: Using electronic monitoring, this method measures muscle activity. When the child grinds their teeth, the device provides a response that makes them aware of the grinding, allowing them to stop.

3. Medicinal Approaches:

  • Muscle Relaxants: In severe cases and under strict medical guidance, muscle relaxants might be prescribed for short-term use to alleviate nighttime grinding.
  • Treatment of Sleep Disorders: If a sleep disorder like obstructive sleep apnoea is the underlying cause, addressing that primary issue through clinical sleep medicine can significantly reduce or eliminate bruxism. This might include interventions like using a bruxism machine or other therapeutic techniques.

4. Lifestyle and Home Remedies:

  • Bedtime Routine: Establishing a calming bedtime routine can help children relax and wind down, reducing the chances of nighttime grinding. This can include reading, soft music, or relaxation exercises.
  • Avoiding Stimulants: Limiting foods and drinks with caffeine or high sugar, especially before bedtime, can help reduce grinding.
  • Jaw Exercises: Certain exercises can help relax the sore jaw and facial muscles, minimising grinding. Consulting with a physical therapist or dentist can provide specific exercises for the child.

Managing tooth grinding in children necessitates professional treatments and home care. Early intervention and consistent follow-up can effectively manage bruxism, ensuring the child’s health and overall well-being.


A child’s teeth grinding is more than just a fleeting nighttime sound. It indicates various underlying factors, from stress and dental misalignment to more complex sleep disorders. Recognising the signs early and adopting appropriate intervention measures can safeguard your child’s dental health, ensuring they maintain their radiant smile and overall well-being.

Your child’s dental health is invaluable. If you suspect they might be grappling with bruxism or any other dental concern, don’t hesitate. The professionals at Available Dental Care are well-equipped and eager to assist. Prioritise your child’s smile and peace of mind by contacting us at (02) 4601 3828 today. Your child’s radiant smile is just a call away!


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