Regular teeth brushing and cleaning between teeth helps to keep your teeth and gums healthy, and helps to prevent tooth decay and gum disease. Other things that may help include mouthwashes, tongue cleaning, and eating a healthy diet, which includes limiting sugary drinks and foods. If you smoke, stopping smoking will improve oral hygiene. Have a dental check-up at least once a year.
Good oral hygiene helps to prevent dental problems - mainly plaque and tartar (calculus) which are the main causes of gum disease and caries (tooth decay). Good oral hygiene may also help to prevent or delay dental erosion.
As an adult, you are not immune to dental problems. In addition to maintaining a good home care routine, the best thing you can do is to schedule regular dental checkups and professional cleanings. You also have a variety of cosmetic options available, including orthodontics (braces), whitening (both in-office and at-home) and bonding (veneers).