Bruxism, or tooth grinding, is a condition that will affect up to a third of children in the United States at some point. It commonly occurs when a child’s new teeth come in, as the pain caused by tooth eruptions encourages grinding. Most kids will quickly lose the habit after this comfort passes, but others will continue to grind long after they have their full set of teeth. Since bruxism weakens your teeth and causes them to come in crooked, you will want to take the following measures with your children: