National Dental Assisting Examining Board (NDAEB) Practice Exam

What fluoride binding agent is recommended for a child experiencing acute fluoride toxicity?

1. Water

2. Juice

3. Milk

4. Soda

The correct answer is: Milk

Milk is the recommended fluoride binding agent for a child experiencing acute fluoride toxicity because it contains calcium and protein, which can help bind fluoride in the gastrointestinal tract. This binding reduces the absorption of fluoride into the bloodstream and can help mitigate the toxic effects. The calcium in milk specifically competes with fluoride for absorption and can potentially neutralize fluoride's harmful effects. Additionally, the fat content in milk can aid in the overall absorption process, making it a suitable choice in such cases. In contrast, options like water or juice do not provide the same calcium-binding properties. Water would not actively bind fluoride and instead could dilute it, without offering any protective benefits. Juice, often acidic, might exacerbate gastrointestinal symptoms that can arise from fluoride toxicity. Soda, often high in sugar and acid, also lacks the necessary calcium content and could contribute to further digestive discomfort, making it an inappropriate option for managing fluoride toxicity.