Ice
It’s not what ice is made of that makes them bad for your teeth — it’s that ice is hard. If you have a habit of chewing on ice, it may be best to grab a piece of sugarless gum instead. Chomping down on a piece of ice can cause your teeth to chip and can damage the enamel of your teeth.
Citrus
Grapefruit, lemon, oranges, lime — while they taste great and they are overall healthy foods, citrus is hard on your teeth. Overtime, they can erode the enamel and will make your teeth more susceptible to decay. If you do eat these foods or drink the juice, be sure to rinse out your mouth with some water or brush your teeth after.
Sticky Foods
Even though you may think of sticky candies right away, which should be avoided as well, we’re talking about dried fruit. Dry fruit like raisins and apricots easily get caught in your teeth and if it’s not brushed out, can cause a buildup of plaque. If you like dried fruit in your trail mix, be sure to rinse with water after.
Soda
No surprise here — soda is one of the most dangerous drinks for your teeth. Sodas contain acids, sugar, and caffeine, all of which can break down the enamel and can even discolor your teeth over time.
Alcohol
Alcohol can dry out your mouth, which will increase the risk of tooth decay and other infections like gum disease.