The best way to reduce mouth bacteria is to practice proper oral hygiene. Flossing and brushing with a regular toothbrush after every meal may be enough, and an electric toothbrush is even more efficient, says WebMD. Antibacterial mouthwashes that neutralize the bacteria are also helpful, states Scientific American.
Mouth bacteria, which cause foul-smelling breath, increase in quantity due to bits of food that remain lodged in between teeth and gums for long periods of time. Oral bacteria thrive and multiply due to this constant supply of material. One way to help clear the food debris is to chew on foods such as apple slices, carrot sticks and celery, which create a less friendly environment for the bacteria, advises WebMD.
Drinking a large glass of water or milk is also known to help reduce harmful mouth bacteria. In addition, says WebMD, chewing sugarless gum approximately 20 minutes after eating, especially brands that are sweetened only with xylitol, is especially effective.
When it comes to decreasing mouth bacteria that reside on the tongue, scraping away the tongue's top coating gently is good practice, advises Scientific American.
Approximately 1,000 different species of human mouth bacteria have been identified, and the mix is highly individual from person to person. As of 2015, studies are being conducted in order to formulate a solution that can eradicate all unwanted mouth bacteria, says Scientific American.