Proiect cofinanțat din Programul Operațional Capital Uman 2014-2020. Pentru informații detaliate despre celelalte programe cofinanțate de Uniunea Europeană, vă invităm să vizitați

What causes tooth decay? 10 foods and drinks that are bad for your teeth

Table of Contents

You want to keep your teeth healthy for many reasons. The tooth decay left untreated can lead to lots of pain, highly priced treatments and even other health problems. The best way to treat tooth decay is to never have it. Prevention is the best thing you can do about it.

We passed the times when it was sufficient to brush your teeth twice a day in order to avoid tooth decay. Nowadays more foods and drinks contain high quantities of sugar and acids, which are the number one cause of tooth decay.

You may think that you only have to avoid sugar in order to keep your teeth healthy, but there are plenty of foods that contain sugar and you might not know. Also, there are other ingredients that you should avoid in order to avoid problems like tooth enamel erosion and early tooth decay.

  • Here is a list of 10 foods you need to avoid for healthier teeth:

Sour candies

Everyone knows that candy is bad for your teeth. Sour candies not only contain a high quantity of sugar, but also acids that can lead to enamel erosion. Plus, as they are so chewy, they are more likely to stick on your teeth for a longer time, which can lead faster to decay.

White bread

Surprisingly, right? There are already reasons to avoid white bread, such as refined carbohydrates and high sugar content. You can also consider avoiding white bread to have healthier teeth. When you chew it, the saliva breaks down the starches into sugar. 

Now converted into a sticky paste, the bread will get easier into the crevices between your teeth. If you can’t get rid of the bread, try the less-refined assortments. Whole wheat and rye bread contain less refined sugar, which is harder to break.


Coffee contains tannins, which is the ingredient responsible for stains. Tea and wine contain tannins also. Your daily cup of coffee is enough to stain your teeth. Coffee is also an acidic drink. This may lead to enamel erosion and thinner teeth. Moreover, coffee sticks to the tongue, which can cause bad breath and even halittosis in some cases.

But is not easy to cut off your coffee or tea, or wine, right? What can you do about this?

  • Drink the coffee in one sitting
  • Avoid as much as possible creamer and sugar
  • Brush your teeth soon after you drink the coffee
  • Raise the intake of raw fruits and vegetables. They keep the teeth clean by breaking bacteria
  • Visit your dentist every six months for the dental cleaning. It cleans all the spots.
  • Eat something before you drink coffee
  • Use more often a tongue scraper

Carbonated drinks

Don’t get trapped into the „diet soda” escape. Carbonated drinks are harmful in every variety they come inand a top drink which is  bad for your teeth. A study found out that large intake of carbonated soda can have the damaging effects of highly addictive drugs. 

They push the plaque to produce more acid to attach to the tooth enamel. The mouth gets dryer, which means there is less saliva to wash away the food debris. Also, dark colored soda can cause teeth decoloration and yellow stains.

Sport drinks

Yes, we needed to make a special topic on sports drinks. They contain high doses of sugar, sometimes up to 13 teaspoons for one bottle. They contain some minerals that help the body revive after a hard training, but they also contain acids. 

Actually, they are more acidic than soda, which leads to highly enamel erosion. The biggest problem is that most people sip the sports drinks, they don’t chug it. This means that the acid contained in the drink stays longer onto your teeth surface.

Alcohol drinks

We stick with the drinks for number 6 also. Did you ever notice that your mouth dries out when you drink alcohol? That’s because it has diuretic properties, which means it drains faster the liquids in your body, making you dehydrated. As mentioned earlier, a dry mouth can’t flush away food particles.

Moreover, dry mouth is linked to 30 percents of tooth decay in adults.

We won’t tell you to stop drinking your usual glass of wine, but you should consider some advice. Keep yourself hydrated! Alternate the alcohol drinks with water and use fluoride rinses.

Citric fruits

Unfortunately, your favorite source of Vitamin C also contains high amounts of acid. We talk about oranges, grapefruits and lemons. Drinking too many fresh juices can lead to enamel erosion, which makes the teeth vulnerable for decay. This is available for lemon water, too.

Of course, you want to enjoy the benefits of a fresh orange without risking early tooth decay. There are some ways you can:

  • Don’t brush your teeth before and after drinking these acidic drinks
  • Use a straw to drink the beverage (paper straw or reusable stainless steel)
  • Rinse your mouth with water mixed with baking soda after drinking the juice

Dried fruits

You may think that this is your rescue to the unhealthy snacks. But their consistency is chewy, which makes them very sticky. And they leave the sugar on the surface on your teeth.

If dried fruits are your favorite snack, try to rinse your mouth with warm water after you eat them, then brush and floss. And remember, there is always the fresh fruits alternative, which is less concentrated in sugar.

Potato chips

They come in the same category with crackers and breadsticks. It’s the same reason as we don’t recommend white bread. The starch will transform into sugar once you chew them, and will get between the teeth to feed the bacteria.

This is the main cause of cavity between teeth. But in this case, you can also hurt your gums with the small crunches. Try to brush your teeth and floss as soon as you finish eating crunchy snacks.


It’s about acid again. The sourness in the vinegar pickles might be the tastiest flavor for you, but it comes packed with all the acid it can get. This makes the pickles number one acidic foods to avoid. In a study where took part more than 2300 children,the researchers positioned pickles on top of the list for dental erosion foods.

Pickles are also responsible for gastroesophageal reflux. It is when you have lots of acid in your stomach and it goes back into your oesophagus. This is again bad for your teeth, as your mouth might get some of the acid reflux also. Try to avoid chewing the pickles for too long. And don’t make them your snack. Carefully brush and floss as soon as you finish eating a pickle.

As you just saw, there is plenty of bad food for your teeth. You should keep in mind that the food industry is constantly changing. This means some items can contain more quantities of sugar and acids, which are the leading cause of early tooth decay.

If you follow this piece of advice and keep visiting constantly your dentist, it should be easier for you to avoid enamel erosion and tooth decay.

Mediwhere is here to help

We believe that even though patients have different dental care needs, they are all in a search for trust. That is why we personally verify each dental clinics, in order to offer the best price

Mediwhere is an open book. We believe timely feedback and good comm can help a community work better. That’s why Mediwhere will always provide clear and easy-to-understand information.

dentistry guides

How does it work? A complete guide to your dental treatment abroad

How does it work? A complete guide to your dental treatment abroad Table of Contents While most of the time people try to postpone the need to go to the dentist from various reasons, the dental problems are keep getting worse. We, here at Mediwhere, understand your fears, the process of thinking and decision making.

Read More »
destination guides

The ultimate dental tourist guide to Romania

The ultimate dental tourist guide to Romania Table of Contents What is dental tourism?​​ Dental tourism is about people travelling abroad with the purpose of accessing medical treatment. This includes cheaper and more available air travel and cross-border communication through the Internet. It is never late to restore your smile, whether you lost your teeth

Read More »
dentistry guides

Removable Dentures – Why Dental Implants Are Better

Removable Dentures – Why Dental Implants Are Better Table of Contents In many countries, removable dentures are one of the many options for replacing teeth, but they always take a toll on your bones and also can be cumbersome and hard to adapt to. Dentures are worth considering as an option if you have lost natural teeth such

Read More »
destination guides

5 reasons why you should target Romania for dental care abroad

5 reasons why you should target Romania for dental care abroad Table of Contents You might be reluctant in choosing Romania as your go-to country for dental care abroad but these following facts will change your mind for good. Romania is an up and coming East-European country and currently part of the EU. Despite many

Read More »
dentistry guides

All-on-4 / Fast and Fixed: A Technical Guide

All-on-4 / Fast and Fixed: A Technical Guide Table of Contents What is All-on-4 / Fast and Fixed? All-on-4 / Fast and Fixed is a new type of fixed implant-based prosthesis, a better alternative to total prosthesis. An alternative that gives full function to the patient almost immediately after the procedure. It consists in a full-arch

Read More »
patients stories

“Life-Changing” smile makeover for our US patient

“Life-Changing” smile makeover for our US patient Table of Contents Donna Read planned to travel with her daughters through Europe this summer. As she was already fascinated by the Romanian culture, she decided to do a 2 in 1 journey and have a smile makeover as well. She already saw 5 specialists in America, specifically

Read More »