Brush all of the surfaces of your teeth. Many people think that they only need to clean the surfaces that are visible, but bacteria likes to hide on the hidden parts of teeth. These are the areas where various dental problems can occur. When you brush, make sure to brush the outside, inside, and chewing surfaces of every tooth.
Learn how to floss properly. Start by wrapping about 18" of floss around your middle finger. Holding that floss tightly between your fingers and thumb, gently insert around a tooth without "jamming" it in. When it reaches the gumline, gently curve it into a C-shape. Gently scrape the sides carefully. Repeat this for every tooth.