Re: Does the phosphoric acid in soda pop erode teeth?
Yes. Ironically, phosphoric acid is a toothpaste additive and a tooth whitener.
It actually inhibits the build-up of plaque, but the cost is “dental erosion.”
Phosphoric acid used as an etchant by dentists and orthopedic surgeons.
The citric acid in soda pop is another cause of dental erosion.
That’s why orange juice and other acidic drinks play a major role in tooth decay.
Wine also causes dental erosion.
Ditto apple cider vinegar.
Ditto the chlorine in swimming pool water.
Ditto the hydrochloric acid from chronic heartburn.
According to Dr. Daranee Tantbirojn …
“The damage from acid reflux looks like tooth wear — the tooth is flattened, thin, sharp or has a crater or cupping.”
She also said (in a 2012 Health Day interview) …
“Generally speaking, saliva is good as the body’s defense mechanism. Saliva has a so-called buffering capacity, meaning it can neutralize acid. Saliva also contains small amounts of calcium and phosphate ions that can reduce the damage of the tooth.”
So phosphate — in the proper amount and in the right combination and at the right time of day (12:00 noon) — can actually protect your teeth.