Why Do I Still Have Cavities

Woman suffering from toothache, close up

If you’re like many of the patients we see, you probably feel like you’re doing a great job taking care of your teeth. You brush your teeth right before your cleaning and come in waiting for a pat on the back and praise of your excellent oral hygiene. You sit down in the chair only to hear you’ve got another cavity. Ugh! It just isn’t fair. What could be causing these cavities?

Poor Diet

While brushing regularly and flossing on a daily basis play an important role in keeping your teeth cavity free, diet is also equally important. Let’s say you brush twice a day, every 12 hours. If you’re drinking sugary drinks, eating tons of candy, and enjoying simple carbs, that food is sitting in your mouth for 12 hours.

That’s plenty of time for bacteria to feed on the sugars and turn them into the acid that breaks down your teeth and causes cavities.

Deep Grooves

Many people have extremely deep grooves on the chewing surface of their teeth. These grooves catch and hold tons of food particles and are extremely hard to clean. As a result, even if you’ve got an amazing oral care routine going on you might still develop cavities. Healthy teeth that have deep grooves are great candidates for sealants, which form a barrier between the surface of your teeth and the food you’re chewing.

Weak Teeth

Some individuals are simply born with weak teeth that are more prone to cavities. This is strictly a genetic issue and something that simply needs to be managed. Often children with weak teeth are given fluoride pills, however, this is not a common practice for adults.


Bruxism or grinding as it is more commonly known, wears your teeth and enamel down over time. This makes your teeth more prone to cavities and breaking. Broken teeth are even harder to repair than cavities. If you grind your teeth at night you may want to talk to the doctor about getting a bite guard made. This simple plastic device is custom made to fit your mouth and eliminates contact between the jaws, thus saving your teeth.

Chronic Dry Mouth

Teeth were made to live in a moist environment. Chronic dry mouth changes the chemical and bacterial makeup of your mouth, which ultimately makes your teeth more prone to break down and cavities. Conditions like diabetes, certain medications, and genetic factors all play a role in your mouth’s condition.


Unfortunately the older you are the more prone you are to developing cavities. This is partly because older people tend to suffer from health conditions that make their teeth more vulnerable to cavities, take medications that can cause dry mouth, and simply have different needs.

Whatever the underlying cause of your cavities is, Dr. Hoang can help to address the issues, treat the cavities, and establish a plan to prevent future occurrences. Contact our office to schedule an appointment, get answers to any questions you have, or learn more about the dental services we offer.

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