That’s because sugar-loaded foods and drinks have a hidden agenda that negatively impacts oral health. “When you eat sugary foods or sip sugary drinks for long periods of time, plaque bacteria use that sugar to produce acids that attack your enamel, the hard surface of your tooth,” according to the ADA.

So limit sugar, just like when you were a kid. After all, no one wants cavities -- no matter how old. Cavities are no fun.

4.            Acidic Foods

Sure, acidic foods can be tasty. But they are anything but good for your teeth.

According to the ADA, exposing teeth to acidic foods can eat away at enamel, making teeth more susceptible to decay.

This means it’s important to consume acidic foods and drinks in moderation. Try substituting plain water in intervals throughout the day if you use citrus to dress it up. According to Sensodyne, makers of Pronamel toothpaste, high-acid foods include not only citrus fruits, but also tonic water, cherries, sports drinks and wine.

5.            Aggressive Tooth Brushing

The harder they're brushed, the cleaner, right? Wrong. Brushing teeth with a lot of force can cause a range of problems like sensitive teeth and receding gums,

According to the Cleveland Clinic, firm bristles and pressure can wear down teeth and gums over time. It's best to lighten up, use a soft- or medium-bristled brush and take the time to brush thoroughly.