There is a saying, "an apple a day keeps the doctor away," and as the saying goes, apples have incomparable health benefits. It is said that apple polyphenols in apples make it difficult for dental plaque to adhere and allow fluoride to strengthen teeth, so some people believe that eating apples can prevent cavities.
In contrast, in 2011, the British Dental Research Foundation published research findings in the "Journal of Dentistry" stating: "The harmful effects of apples on teeth are four times greater than those of carbonated drinks." The study states that fruit is acidic and contains sugar, both of which are factors that cause cavities. However, it cannot be denied that compared to fruit juices like grape juice, fruit has less of a harmful effect on teeth. The research suggests that apples themselves are not the problem; the key is in how you eat them. If you eat apples slowly, the acids they contain can damage dental health.
Therefore, it can be said that it is very difficult to prevent cavities by relying solely on eating apples. To avoid getting cavities or other periodontal diseases, it is most important to develop a daily oral hygiene habit of brushing your teeth. Unlike in medical fields such as weight loss, there are no "magic foods" in the realm of dental diseases.