How pH Level Relates to Tooth Decay: The Acid Level within the Mouth

Upper Teeth Resting Plaque pH Level pH Level of Plaque after Rinsing Mouth with Sugar
No Cavities 7.1 5.5
Slight Cavities 6.8 4.9
Moderate Cavities 6.2 4.6
Extreme Cavities 5.5 4.3

How Does One Change the pH Level of the Mouth?

You would think if the cause of tooth decay was the acidic condition of the mouth, then the dentist could simply offer a "basic" solution to rinse with a few times a day and cavities would stop. It isn't as simple as this. However some people brush their teeth with baking soda as one method to try to raise the pH of their mouth in order to turn their mouth into a cavity free mouth. Yet the real solution lies deeper within.

Weston Price, Activator-X, and a Cavity Free Mouth

Giving patients grassfed butter from the spring time rich in activator X (a hormone found in spring time butter and fish eggs), along with a reduction in white flour and sugar products, resulted in a change in bacterial levels in the mouth.

In a group of six patients studied, dentist Weston Price reduced the 323,000 colonies per cubic centimeter of saliva of L. acidophilus to 15,000 per cubic centimeter. A reduction of 20 times.

When the mouth pH drops to 5.5 then tooth decay is active. When tooth decay is active there are also much higher levels of bacterial colonies as an effect, not as a cause of tooth decay.

When the mouth pH is 7.1 or higher, there is no tooth decay. Corresponding to the healthier mouth environment, not condusive to tooth decay, is a lesser number of bacteria in the mouth.

A Changed pH Level is the Result and Not the Cause of Tooth Cavities

Although I could not find conclusive studies as to this fact, I believe the lowering of bacteria associated with cavities with the consumption of a better diet including activator X will also likewise affect the mouth's pH level.

In other words, active tooth decay leads to low mouth pH and high bacterial levels.

Halted tooth decay leads to higher pH levels and low bacterial levels.

The cause is the availability of fat-soluble vitamins and minerals in the blood stream which can be used by the body to utilize free, unbound calcium and phosphorus in the blood stream to remineralize teeth and bones.

Likewise, a poor diet of modern processed foods lowers mouth pH, and increases bacterial levels of the mouth.

Tooth Decay Bacteria Article Sources

  • MICROBIOLOGICAL REVIEWS, Dec. 1986, p. 353-380 Vol. 50, No. 4 Copyright (C) 1986, American Society for Microbiology
    Role of Streptococcus mutans in Human Dental Decay
    WALTER J. LOESCHE Department of Oral Biology, School of Dentistry and Department of Microbiology and Immunology,
  • J DENT RES 1994; 73; 672 J. van Houte
    Role of Micro-organisms in Caries Etiology
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