We’re often under the impression that toothpaste and other oral hygiene products will keep our teeth healthy. But oral-care products can only help so far in protecting teeth. Most of the time, it is up to us to ensure we follow a healthy lifestyle to improve oral health. One way to do this is by avoiding these five foods that are secretly, but surely ruining the health of our teeth. Potato chips Chips contain lots of starch, which could become sugar and get trapped on and between the teeth. And the sugar feeds bacteria present in the plaque. Since people generally munch on many chips in one go, the acid production might linger for a while and damage the teeth. Therefore, one should ensure they floss after eating to remove any trapped particles. Sour candies Sour candies contain a large number of acids that are hard on the teeth. Furthermore, these candies are chewy and may stick to the teeth for a long time, making them more likely to decay. While the ideal solution is to avoid sweets, if one has cravings, one should munch on a bar of chocolate instead, which can wash away easily. Bread When a person chews on bread, the saliva breaks down starches into sugar.