Teeth Grinding in Children

Children and Teeth Grinding - Boston Dentists

Every parent wants their children to be healthy and happy in all aspects of life. This includes dental care. Parents may be surprised and even alarmed when they notice that their child seems to be grinding their teeth a lot. What could that mean? What can you do? Luckily, this is a rather common problem. A trip to the dentist will certainly help to ease your mind.

Until then, here is some information on the grinding of teeth in children that may answer some of your immediate questions.

Grinding teeth in Children

Grinding of the teeth (or <bruxism) is when a child rubs their teeth together in an unnatural way. It usually occurs while the child is sleeping.

A surprisingly large amount of children grind their teeth. In fact, 20 or 30% of children grind their teeth. The most common times for this to occur are when the baby teeth are coming in and when the adult teeth are coming in. Out of the children that grind their teeth, about 1/3 will continue to have a problem in adulthood.

Indications of a Problem

Have you heard or seen your child grind their teeth while sleeping? Do they rub their jaw in pain when they wake up or while chewing? These are all signs that your child is grinding their teeth. Do your best to discover the frequency that this happens yourself by monitoring them and ask your child if they have noticed that they do it.


There are a variety of possible reasons why children might have bruxism. While it may be difficult to pinpoint in some cases, there are some popular culprits:

  • teething:
    Some children grind their teeth because of growing pains associated with their teeth arriving. It could be their natural reaction to the pain and discomfort. In these cases, the problem will generally stop itself. This can occur with both the baby teeth and adult teeth.
  • psychological disorders:
    Everyone handles stress differently. Some children (and adults) grind their teeth when they’re stressed. Try to protect your child from the stress around them and let them be kids. Hopefully, the grinding will stop when the stress is gone. If you don’t know what is causing the stress, talk to your child to get to the bottom of it.
  • misaligned teeth:
    When the teeth aren’t aligned properly, it can be uncomfortable for the child. This can cause them to grind their teeth when their mouth is closed. The same goes if the child is missing teeth, which is why the problem is so common in children.
  • breathing/ sleeping problems:
    Young children in preschool need a lot of sleep for their growing bodies. In fact, they need as much as 11 – 13 hours of sleep every day. Unfortunately, children who do not have the proper airflow may not fall into the deep sleep that they should. Grinding is an indication of this sleeping problem. If not properly attended to, the problem could become more severe with age.
  • enlarged tonsils/adenoids:
    Enlarged tonsils can also obstruct a child’s airway, making it significantly more difficult for them to breathe while they sleep. This, in turn, can cause the child to grind their teeth.
  • parasites:
    In some rare cases, the cause could be intestinal parasites. Parasites could potentially cause damage throughout the entire body, including the mouth, jaw, and teeth. The two most common intestinal parasites in children are pinworms (Enterobius vermicularis) and Giardia lamblia.

Whatever the reason, it can be harmful for a child’s dental health and overall health, and steps should be taken to correct the problem if possible.

Causing Harm

Baby teeth have thinner enamel than adult teeth. That means that when children grind their teeth, the damage happens more quickly and is more noticeable. While most damage will only affect their baby teeth, in some cases, it can be more serious.

The grinding can cause a breakdown of the tooth enamel, as mentioned. The reduced enamel can cause increased sensitivity and pain. It could even possibly chip teeth, causing them to be misshapen and unattractive. Finally, it could cause mouth and jaw problems, even resulting in temporomandibular joint disease (TMJ).

Another unusual problem that professionals have noticed is that children who grind their teeth tend to be more withdrawn from other children.


In some cases, the problem fixes itself with time and the development of the adult teeth. However, you can’t assume that this will be the case for your child.

The first step is to take your child to the dentist. The dentist can check for any causes with direct solutions. Ultimately, a pediatric dentist will probably advise you to wait until the child’s adult teeth come in to come up with a solution.

Many people think that they should get a mouth guard to prevent damage, but a child’s teeth are malleable until about 14 years old. Once the adult teeth are in, if the child is still grinding their teeth, they may require braces, a mouth guard, surgery, or a variety of other solutions, depending on the cause of the problem.


Unfortunately, teeth grinding in children is a problem that can’t really be prevented, especially when it’s a result of developing teeth. Enforce strict dental hygiene to prevent additional issues and go to regular dental check-ups. Furthermore, if your child does get a lot of caffeine from soda or candy, limit the amount of caffeine that they consume. Beyond that, you can’t determine how your child’s teeth will grow in and how it will affect them.

As a parent, it can be difficult to watch your child go through a medical problem that you can’t immediately resolve. Keep in mind that bruxism is usually temporary. The best thing you can do is encourage good brushing and flossing habits. After the adult teeth come in, you can move forward if there is still a problem.

Leave a Reply

Your email address will not be published. Required fields are marked *


36 Chauncy Street
Boston, MA 02111




35 Court Street
Boston, MA 02108




Opening in 2018.
Please contact our Boston
office: 617.338.5000




  • Boston Dental Facebook
  • Boston Dental Twitter
  • Boston Dental Instagram
  • Simple Share Buttons