Birds are chirping and flowers are blooming, which means spring is in the air. If you are like many people, you’re probably giving your home a good cleaning. Besides wiping your baseboards and scrubbing your grout, don’t forget about your smile. Life gets busy, and it’s easy to lose track of time. Whether you haven’t changed your toothbrush recently or skipped your preventive appointment, here are 4 ways to give your smile a thorough spring cleaning.