Final answer:
It is true that stannous fluoride gels are effective in preventing dental caries and controlling gingivitis, which led to their ADA approval.
Step-by-step explanation:
True, many studies document the efficacy of stannous fluoride gels, which is why they were approved by the ADA Council on Scientific Affairs. Fluoride, as an active ingredient in toothpaste, plays a crucial role in preventing cavities by contributing to the formation of dental enamel and bones.
Stannous fluoride, in particular, has been shown to be more effective than sodium fluoride in reducing the incidence of dental caries and controlling gingivitis, despite causing some surface stains. It's important to note that other types of fluoride, such as sodium fluoride (NaF), olaflur, and sodium monofluorophosphate (Na2PO3F), are also used in various dental hygiene products.