Your teeth are designed to last forever if you take the time to commit to your oral health. The foundation for a healthy smile starts at home with the help of your toothbrush. It’s your first line of defense against common preventable issues, like tooth decay and gum disease, which means it’s going to get used a lot. Over time, it’s not going to be as effective. You can ensure your smile stays healthy in between appointments with your dentist by changing your toothbrush regularly. Here’s how to make the most of your brushing routine.