Many parents are startled to hear their child grinding their teeth during sleep. Teeth grinding, or bruxism, is common in children and often harmless, especially in younger children whose teeth and jaws are developing. However, in some cases it can wear teeth or be linked to other issues. Understanding the causes and signs helps you know when to seek advice.
Teeth grinding is very common in childhood, particularly between the ages of three and ten. Many children grind their teeth occasionally during sleep, and most grow out of it as their adult teeth come through and their jaws develop. Grinding during the day is less common and may be linked to concentration or stress.
Grinding may be related to the natural development of the teeth and jaws, as the teeth find their position. Other possible factors include stress or anxiety, changes in routine, illness, ear pain, teething, some medications and sleep-related breathing problems. Children with enlarged tonsils or adenoids, snoring or mouth breathing may grind more often. In some children, there is no clear cause.
Signs include grinding sounds during sleep, worn or flattened baby teeth, chipped edges, sensitivity, jaw pain or headaches in the morning, and difficulty chewing. Many children have no symptoms at all, and the grinding is only noticed by parents or siblings.
Baby teeth have thinner enamel than adult teeth and can show wear quickly. Mild wear is common and usually does not cause problems, because baby teeth are eventually replaced. Severe wear, sensitivity or pain should be assessed by a dentist.
Book an appointment if grinding is frequent, your child complains of jaw or tooth pain, teeth look significantly worn or chipped, or if grinding continues as adult teeth come through. Also seek advice if your child snores loudly, stops breathing briefly during sleep or seems very tired during the day, as these may suggest a sleep-related breathing problem.
In many children, no treatment is needed other than monitoring. Reducing stress, keeping a calm bedtime routine and limiting screens before bed may help. If wear is significant in older children with adult teeth, a night guard may be considered. If breathing problems are suspected, your dentist may recommend seeing your doctor or an ENT specialist.
Your dentist will check for wear at regular check-ups and compare it over time. Photographs and notes help track changes. Most children outgrow grinding, but monitoring ensures that any problems are caught early.
Simple steps at home can help. Keep a consistent bedtime routine with quiet activities such as reading, and avoid screens in the hour before sleep. Make sure your child drinks enough water during the day, especially in hot weather, and limit caffeinated drinks such as cola or iced tea. If your child seems anxious about school, friendships or changes at home, talking calmly about their worries can help. If grinding continues or your child seems unusually tired, keep a note of what you observe to share with your dentist or doctor.
Yes. It is common and often harmless, especially in younger children.
Most children do as their adult teeth come through.
Usually not for baby teeth, but it may be considered for older children with significant wear.
Book a check-up if you are concerned about your child's grinding.
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