It is said that "an apple a day keeps the doctor away," and as the saying goes, apples have incomparable health benefits. It is said that the apple polyphenols in apples make it difficult for dental plaque to adhere, allowing fluoride to strengthen teeth, and therefore some people believe that eating apples can prevent cavities.
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, the most important thing is to develop a daily oral hygiene habit of brushing your teeth. Unlike in medical fields such as weight loss, there is no "magic" for food in the realm of dental diseases.
On the contrary, 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 research states that fruits are acidic and contain sugar, both of which are factors that cause cavities. However, it cannot be denied that compared to fruit juices like grape juice, fruits have a lesser harmful effect on teeth. The study suggests that the apple itself is not the problem; the key lies in how it is eaten. If you eat an apple slowly, the acid it contains can damage dental health.