If you've been advised by your dentist or oral hygienist to floss, then ask them how to do it correctly. Flossing helps to remove food, debris and plaque between your teeth. Watch how to floss.
Have a healthy lifestyle. This including eating well, not smoking and cutting down on how much sugar you have.
Sometimes braces can help straighten our teeth if needed. Find out more about braces and orthodontics.
Have regular dental check-ups. Do not put off going for a check-up. Spotting problems early can mean they're easier to treat.
For more advice around general tooth care visit the NHS website.