Dried fruit

“Dried fruit is really like eating candy,” says Stephen J. Stefanac, DDS, professor of oral medicine and periodontics. “It has that stickiness and high sugar content.” That means that sugar gets stuck between your teeth – the perfect formula for cavities. Skip the dried variety and opt for fresh fruits instead.
These are the 5 fruits you need to eat every day to not gain weight.
Soft drink

It probably comes as no surprise that soft drinks are not great for your teeth. A 375ml can of fizzy drink has a whopping 39 grams of sugar – that’s almost 10 teaspoons! But that’s not the only problem. “It’s very acidic,” says dentist Tricia Quartey. “And acid can break down the enamel.” The worst is if you sip soft drinks all day long, because it increases your teeth’s exposure to the sugar and acid.
Learn 12 things that happen to your body if you stop drinking fizzy drinks.
Juice

Like soft drink, bottled juice can be acidic and often contains added sugars, sometimes as much as 10 teaspoons per serving. That sugar feeds bacteria in your mouth that cause tooth decay. But at least one dentist likes a surprising alternative: apple juice. “There’s usually no added sugars in apple juice,” says Tyrone Rodriguez, DDS, director of pediatric dentistry. Dr Rodriguez suggests watering down apple juice to decrease the natural sugar further or making other juices yourself at home.