Will Invisalign Protect My Teeth from Cavities?
January 19, 2026

Invisalign aligners are clear plastic trays that are designed to fit over your unique teeth. Since they place a barrier between your enamel and the outside world, you might wonder if they will protect your teeth from cavities. Sadly, the answer is no. In this blog post, you will learn how cavities can form during Invisalign treatment and the steps you can take to keep your smile healthy throughout your orthodontic journey.
How Cavities Form During Invisalign
Cavities form when harmful bacteria in the mouth feed on the sugars and starches you consume. This process creates plaque, an acidic biofilm that clings to the enamel. Eventually, plaque can cause small pits (cavities) to form.
Even though Invisalign aligners place a barrier around your teeth, they do not interfere with the process of cavity formation. That is because:
- You must remove your aligners when you eat. Food particles will still have an opportunity to interact with bacteria and cause plaque.
- Food and bacteria might get trapped in your aligners. Without a thorough oral hygiene routine, plaque and food particles might get stuck against your teeth when you wear your aligners, thereby increasing your risk of decay.
Preventing Cavities During Invisalign
The good news is that it is not difficult to prevent cavities during Invisalign treatment! Here are some practical steps you should take:
- Stick to a careful oral hygiene routine. You should clean your teeth (brush and floss) after each meal.
- Keep your Invisalign aligners clean. Rinse them before each time you place them in your mouth. You should also thoroughly clean them each night with a non-abrasive cleansing agent. You may also choose to soak them with Invisalign cleaning crystals.
- Make wise food choices. Try to eat a healthful diet that does not contain a lot of sugary or acidic items.
- Keep up with dental cleanings and checkups. Your periodic Invisalign check-ins are not a substitute for routine preventive care with your dental team.
Dealing with Cavities During Invisalign
Cavities can form at any time. If you notice a small pit in one of your teeth, or your floss always seems to catch in a certain spot, you should visit your dentist for an examination. Usually, a filling is an effective way to stop the decay from spreading and preserve the integrity of the tooth. Fillings should not interfere with your Invisalign treatment; they can be adjusted so they sit flush against your teeth and will not significantly affect the way your aligners fit.
Invisalign does not stop cavities, so keep up with good habits to maintain a healthy smile throughout your orthodontic journey!
Meet the Practice
Landmark Dental Studio is home to four highly skilled dentists, including a certified Invisalign Platinum Plus Provider. We are eager to welcome patients so they can learn more about this treatment and discover how to make it successful. If you are interested in straightening your teeth with clear aligners, we would be happy to answer your questions. Get in touch with our Greenwood Village, CO, office at 303-773-8013.