To maintain the best oral hygiene you should brush your teeth as standard (twice a day including flossing a couple of times a week) as well as after eating. Brushing removes food particles and sugars that can lead to tooth corrosion. A brace prevents the free movement of saliva around the mouth; which in turn, inhibits the cleaning process aided by the movement of saliva.
Equally, the brace requires cleaning. After brushing it is good practice to brush the aligner too – ideally with soap and not toothpaste. Twice a week it is also important to clean the brace with a disinfecting tablet. These can be purchased here.