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Does Your Child Grind His or Her Teeth at Night?

Bruxism, or the grinding of teeth, is remarkably common in children and adults.  For some children, this tooth grinding is limited to daytime hours, but nighttime grinding (during sleep) is most prevalent.  Bruxism can lead to a wide range of dental problems, depending on the frequency of the behavior, the intensity of the grinding, and the underlying causes of the grinding.

A wide range of psychological, physiological, and physical factors may lead children to brux.  In particular, jaw misalignment (bad bite), stress, and traumatic brain injury are all thought to contribute to bruxism, although grinding can also occur as a side effect of certain medications.

What are some symptoms of bruxism?

In general, parents can usually hear intense grinding – especially when it occurs at nighttime.  Subtle daytime jaw clenching and grinding, however, can be difficult to pinpoint.  Oftentimes, general symptoms provide clues as to whether or not the child is bruxing, including:

  • Frequent complaints of headache.
  • Injured teeth and gums.
  • Loud grinding or clicking sounds.
  • Rhythmic tightening or clenching of the jaw muscles.
  • Unusual complaints about painful jaw muscles – especially in the morning.
  • Unusual tooth sensitivity to hot and cold foods.

How can bruxism damage my child’s teeth?

Bruxism is characterized by the grinding of the upper jaw against the lower jaw.  Especially in cases where there is vigorous grinding, the child may experience moderate to severe jaw discomfort, headaches, and ear pain.  Even if the child is completely unaware of nighttime bruxing (and parents are unable to hear it), the condition of the teeth provides your pediatric dentist with important clues.

First, chronic grinders usually show an excessive wear pattern on the teeth.  If jaw misalignment is the cause, tooth enamel may be worn down in specific areas.  In addition, children who brux are more susceptible to chipped teeth, facial pain, gum injury, and temperature sensitivity.  In extreme cases, frequent, harsh grinding can lead to the early onset of temporomandibular joint disorder (TMJ).

What causes bruxism?

Bruxism can be caused by several different factors. Most commonly, “bad bite” or jaw misalignment promotes grinding.  Pediatric dentists also notice that children tend to brux more frequently in response to life stressors.  If the child is going through a particularly stressful exam period or is relocating to a new school for example, nighttime bruxing may either begin or intensify.

Children with certain developmental disorders and brain injuries may be at particular risk for grinding.  In such cases, your pediatric dentist may suggest botulism injections to calm the facial muscles, or provide a protective nighttime mouthpiece.  If the onset of bruxing is sudden, current medications need to be evaluated.  Though bruxing is a rare side effect of specific medications, the medication itself may need to be switched for an alternate brand.

How is bruxism treated?

Bruxing spontaneously ceases by the age of thirteen in the majority of children.  In the meantime however, your pediatric dentist will continually monitor its effect on the child’s teeth and may provide an interventional strategy.

In general, the cause of the grinding dictates the treatment approach.  If the child’s teeth are badly misaligned, your pediatric dentist may take steps to correct this.  Some of the available options include: altering the biting surface of teeth with crowns, and beginning occlusal treatment.

If bruxing seems to be exacerbated by stress, your pediatric dentist may recommend relaxation classes, professional therapy, or special exercises.  The child’s pediatrician may also provide muscle relaxants to alleviate jaw clenching and reduce jaw spasms.

In cases where young teeth are sustaining significant damage, your pediatric dentist may suggest a specialized nighttime dental appliance such as a nighttime mouth guard.  Mouth guards stop tooth surfaces from grinding against each other, and look similar to a mouthpiece a person might wear during sports.  Bite splints or bite plates fulfill the same function and are almost universally successful in preventing grinding damage.

If you have questions or concerns about bruxism or grinding teeth, please contact our office.

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“We feel like you are all part of our family! I hope we can remain with you for a very long time. Thanks for helping our children understand about their dental health”

Michelle B.

“Have you heard of the movie, “Encino Man?” Well, Dr. Marilyn Calvo is the “Encino Woman!” I have been going to Dr. Calvo for four years now, and I wouldn’t consider going anywhere else. Her whole office radiates such professionalism, warmth, and friendliness. She is so very thorough that even the tiniest cavity can’t get past her. She is truly and artist. So, if you are wise, head out west on Ventura Blvd. to Dr. Marilyn Calvo, the very BEST!”

Bill A.

“Dr. Calvo is not just the most amazing dentist I have ever known, but she is the most amazing down to earth person. I was lucky to discover Dr. Calvo through a friend who highly recommended her. I got veneers done with her and they look AMAZING!! Everyone is jealous of how great my smile is. When I first went in to see her I was blown away with how much attention she paid to me. She always makes sure to spend time with her patients’ one on one and explain exactly what is going on to make sure you are aware.”


“In my past, I went to dentists who never explained anything and just did the routine cleaning without emotion and passion. Dr. Calvo has so much passion and knowledge for the services she provides. She is definitely a dentist who genuinely cares and improves the lives of people around her. I am so grateful to have her. The staff that works with Dr. Calvo are the nicest people I have ever known. I look forward to going to the dentist for the first time in my life.”

Jen C.

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