Final answer:
Topical fluorides are taken into the oral cavity through the use of fluoride-containing products such as toothpaste, mouth rinses, and dietary supplements. Community water fluoridation is another method of delivering fluoride to the oral cavity. These methods help protect tooth enamel from corrosive acids and reduce the risk of tooth decay.
Step-by-step explanation:
Topical fluorides are taken into the oral cavity through the use of fluoride-containing products such as toothpaste, mouth rinses, and dietary supplements. These products contain fluoride, which becomes incorporated into the hydroxyapatite of tooth enamel, making it more resistant to corrosive acids produced by oral bacteria. Additionally, community water fluoridation is another method of delivering fluoride to the oral cavity as it is added to tap water to help maintain oral health. This method has been identified as the most cost-effective way to reduce tooth decay in both children and adults.