It is extremely important to keep your teeth and braces clean to avoid permanently damaging your new smile. Mark will instruct you on how to care for your teeth and braces at the braces on appointment. A quick overview is given in the Colgate brochure on Oral Care during Orthodontic Treatment.
You can eat most foods. Though to reduce the possibility of permanently marking/discolouring or damaging your teeth and gums, it is best to minimise the amount of sweet, sugary and acidic foods and drinks. To avoid breaking your braces, hard, sticky and chewy foods should also be avoided or cut into very small pieces.