If you’re like most people, you brush your teeth twice a day to keep your smile healthy and bright. This is a great habit to have. After all, your toothbrush is your mouth’s first line of defense against bacteria and plaque that can build up and lead to cavities. As important as daily brushing is, though, you may be doing your smile more harm than good if you don’t switch out your toothbrush every now and then. Here’s how often you should change your toothbrush to prevent the spread of bacteria.

At the beginning of each year, many make New Year’s resolutions to improve their appearances or advance their careers. Getting a confident, healthy smile can help you accomplish both of these goals! If you’re ready to get the beautiful teeth you deserve, here are 4 resolutions that can help you do it.