Maintain great oral health Keeping great oral health is essential for everybody. But failing to do so during your treatment, which can last up to two years, can leave you more vulnerable to oral health problems such as tooth decay and gum disease. It also can hamper how effective the treatment is. If you don’t look after your teeth, gums and braces, it will be more difficult and potentially costly for you to get the smile you want. Clean your teeth and the brace thoroughly after meal. Cut down on how often you have sugary foods and drinks – sticky and hard foods may damage your brace.