How common is bruxism?
About half of US adults grind their teeth at night, and about 20% (over 40 million people) grind their teeth in a destructive way. Most people who grind their teeth are over 25 years old, and the disorder affects women and men about equally. Children also grind their teeth, but usually in response to discomfort caused by colds, ear infections or allergies. Most cases of bruxism in children resolve on their own without causing tooth damage or other problems.
