To keep plaque under control, brush twice a day with a fluoride toothpaste and floss daily. Use an antimicrobial mouth wash to reduce the bacteria in your mouth.
Get your teeth cleaned professionally on a regular basis, and ask your dentist about the best cleaning schedule for you. Find out if you might benefit from a protective coating or sealant applied to the chewing surfaces of the teeth in the back of your mouth, where tooth decay often begins.
Source: http://www.webmd.com/