What Causes Teeth Grinding During Sleep in Children?

Many mothers frequently mention that their children grind their teeth—a phenomenon that typically occurs during nighttime sleep. Teeth grinding (bruxism) is not a normal occurrence, and parents should take it seriously. So, what causes children to grind their teeth while sleeping?

What Causes Children to Grind Their Teeth During Sleep?

Teeth grinding in children may result from excessive physical fatigue or overexcitation of the nervous system. It may also occur during the tooth-replacement and tooth-development stages, when gum swelling, pain, or itching can arise. Unconscious teeth grinding during sleep may help alleviate this itching sensation. Additionally, poor dietary habits and inadequate food hygiene in children can lead to gastrointestinal dysfunction—and even intestinal parasitic infections—which severely impair nutrient absorption in the gut, potentially resulting in bruxism and malnutrition.

Children’s teeth grinding during sleep may also stem from excessive mental stress, deficiencies in trace elements, or dental developmental abnormalities. For an accurate diagnosis, families should consult a professional dentist in the hospital’s Department of Stomatology. Once the underlying cause is identified through clinical examination, targeted treatment can be initiated.

During daily life and sleep, children should maintain a supine position and avoid clenching or grinding their teeth. They should consume more fresh fruits and vegetables to ensure adequate nutrition, and spend time outdoors in sunlight to promote absorption of essential trace elements. We hope this information proves helpful to you.