We can infer from the passage that one benefit of fluoride to healthy teeth is A. It strengthens tooth enamel
Câu hỏi:
We can infer from the passage that one benefit of fluoride to healthy teeth is
A. It strengthens tooth enamel
B. It stimulates saliva production
C. It makes teeth whiter
D. It is a replacement for brushing and flossing in dental care
Trả lời:
Thông tin: If fluoride is present in drinking water when teeth are forming, some fluoride is incorporated into the enamel of the teeth, making them more resistant to attack by acid. Fluoride toothpaste seems to act in another way, by promoting the remineralization of early carious lesions. (Nếu florua có trong nước uống khi răng đang hình thành, một số florua được tích hợp vào men răng, làm cho răng có khả năng chống lại sự tấn công của axit. Kem đánh răng chứa florua dường như hoạt động theo một cách khác, bằng cách thúc đẩy quá trình tái khoáng hóa các tổn thương sâu răng sớm.)
Chọn A
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