In addition, recovering alcoholics should not use an alcohol-based product. Stannous fluoride, acidulated phosphate fluoride, and sodium fluoride appear to be equally effective in preventing cavities. They differ in application frequency, taste, cost, stability, and staining. When fluoride toothpastes were developed, stannous fluoride products were the first available. Many stannous fluoride products have a bitter taste and some can cause tooth staining.
Stannous fluoride can also irritate the gums.
Acidulated phosphate fluoride has been made as both an in-office treatment and home fluoride rinse. The acidic mixture may pit or stain the surface of tooth-colored fillings and is not recommended in these situations. Sodium fluoride has an acceptable taste and does not cause staining or gum irritation. In non-acidic mixtures, it causes no damage to dental fillings. Question and comments should be posted to the dental forum .