Tooth decay can be prevented by using a type of mouth germs to control bad bacteria instead of killing both helpful and harmful microbes by using mouthwash. Probiotic pills containing the strain of mouth bacteria could be available in the future as an oral supplement that makes cavity prevention as easy as taking a pill with a glass of water.
The new study was published by the journal Applied and Environmental Microbiology. It was conducted by the University of Florida.
Researchers have discovered a strain of Streptococcus known as A12 that contains bugs that could help to control the balance of good and bad bacteria. That could reduce the need for tooth fillings.
In order to maintain good tooth health and prevent cavities, the pH levels in a person's mouth should be fairly neutral. However, if the acid level becomes too high the bacteria on the surface starts to dissolve the teeth.
Researchers at the University of Florida wanted to learn ways to keep the pH levels high. They learned that two main chemical compounds can help to neutralize the mouth's acid: the organic compound urea and the amino acid arginine, according to Science Alert.
Oral biologist Robert Burne helped to conduct the study. Previous studies by Burne and his research team learned that mouths of people with few or no cavities were able to break down arginine more easily. However, they were uncertain what type of bacteria was balancing the pH level.
Researchers found out it was the bacteria called A12. If scientists can develop a form that people can digest it could help to stop cavities before they start.
Burne explained that a probiotic could be made with "good" bacteria. People with good dental health could take pills that would help to break down arginine and prevent cavities.
There are two ways A12 protects teeth. It metabolizes arginine to neutralize mouth acid, but the microbe also attacks a strain of bacteria called Streptococcus mutans that turns into cavity-causing lactic acid.
In related news, a new study published in the medical journal BMJ Open revealed that Americans get 90 percent of their added sugars from highly-processed foods and beverages, according to Los Angeles Times.
Here's how to cure cavities naturally: