When Sweet Dreams Turn Noisy: Why Some Kids Grind Their Teeth While They Sleep

It’s bedtime, the lights are out, and your child is finally asleep — but you start hearing a strange grinding or clicking sound coming from their room. That noise might be more than just restless dreaming; it could be bruxism, or teeth grinding, a surprisingly common habit among children. While it often goes unnoticed, understanding why kids grind their teeth and how to help them can make a big difference in their oral health.

What Is Bruxism in Children?

Bruxism is the medical term for clenching or grinding the teeth, usually during sleep. It can happen occasionally or almost every night, depending on the child. While many kids eventually outgrow it, consistent grinding can wear down tooth enamel, cause jaw discomfort, and even affect their sleep quality.

At Dr. Sugar’s Kids Dentistry in Paradise Valley, AZ, our team often sees children who grind their teeth without even realizing it. Parents usually notice the sound first or spot signs like flattened teeth or morning jaw soreness.

Why Do Kids Grind Their Teeth?

There isn’t one single reason why children grind their teeth — it’s often a mix of physical and emotional factors. Some of the most common causes include:

1. Misaligned Teeth
When the upper and lower teeth don’t fit together properly, children may subconsciously grind to “fix” the position.

2. Stress or Anxiety
Even young children can feel tension from school, sports, or changes at home. Grinding can be the body’s way of releasing that built-up stress while asleep.

3. Growth and Development
As children’s jaws and teeth grow, temporary grinding can occur while their bite adjusts.

4. Sleep-Related Issues
Children who snore or have mild sleep apnea are more likely to grind their teeth. The grinding can happen as their body reacts to interrupted breathing patterns.

5. Medications or Medical Conditions
Certain medications, especially those affecting the nervous system, can increase the likelihood of bruxism.

Signs Your Child Might Be Grinding Their Teeth

Because it happens during sleep, bruxism can be hard to catch. Watch for these subtle signs:

Grinding or clicking sounds during the night

Complaints of jaw pain or headaches in the morning

Worn-down or chipped teeth

Tooth sensitivity to hot or cold

Difficulty chewing in the morning

If you notice one or more of these, it’s a good idea to bring your child to a kids dentist in Paradise Valley, AZ for an evaluation.