Most parents pay close attention to their child's dental health throughout most of their early life, but this attention can start to wane as your child gets older and can start paying closer attention to what's going on without adult supervision. But the teen years are still critically important if you want your child to make it into adulthood with a full set of healthy teeth. Here are just a few tips to keep in mind if your teen is growing up and you want to help them retain a healthy smile for the long term.