First ,go and see your dentist and get your teeth thoroughly cleaned and polished,then use following program.
Buy a carton of pure ( no Aluminium) baking soda ( Sodium Bicarbonate) and brush your teeth twice a day immediately after the meals. (Some bacteria have a reproduction cycle every 4-15 minutes. Do not provide food for them. Avoid all sugar) Also brush out your tongue .Use moderate pressure. If you stick out your tongue hard ,you will be able to reach with your toothbrush far back, without gagging. Use a special toothbrush to brush below gum line at least once a day ,to prevent a plaque built-up.Use small brushes in a package to remove food between your teath ,when away from home.Use next brush for the same purpose at home. Use #3 full toothbrush with baking soda to brush your teeth.#4 is for brushing under gums. Purchase 3% Hydrogen Peroxide from the Pharmacy and use it as a mouth wash. Put only about a teaspoon in the mouth. Swish and gargle for 2 minutes twice a day, after you have brushed. Purchase cheapest cooking oil in a grocery store . Once a day put about 1/2 spoonful in your mouth,hold for ten minutes and spit out into the garbage.
You will not get plaque or cavities, your breath will be fresh and your teeth will be bright white.
This is definitely the most inexpensive way to take the best care of your teeth.
While everyone knows that Hydrogen Peroxide is useful for preventing infection from scrapes and cuts due to its antiseptic and antimicrobial properties, many people ignore the fact that hydrogen peroxide is an effective mouthwash and teeth whitening agent. I have been using Hydrogen Peroxide as a part of my daily oral hygiene regimen and have noticed a big difference in the whiteness of my teeth and the overall health of my mouth.
Hydrogen Peroxide can be found in the pharmacy section of most drugstores in a dark brown opaque bottle. The reason that it is kept in an opaque brown bottle is that light will actually cause the Hydrogen Peroxide to break down and weaken its potency. It is important to get a 3% hydrogen peroxide solution, which is the maximum potency that is generally accepted to be safe for biological and health purposes. Any Hydrogen Peroxide sold in a drugstore should be 3%, but double check to make sure that you have not inadvertently purchased a bottle of Hydrogen Peroxide for industrial use( 30 %) instead of household .