Can you be allergic to invisalign?

Invisalign SmartTrack aligners are made of a medical grade plastic, which is the result of many years of research and development. This special polyurethane is made from two main components called methylene diphenyl diisocyanate and 1,6-hexanediol, which are combined to create a clear, strong, thin, and flexible material that is used to make the Invisalign aligners.

The purpose of using SmartTrack is to ensure that the aligners are comfortable to wear and effective in moving the teeth. It has been carefully designed to have the right balance of properties, such as flexibility and strength, to provide optimal treatment outcomes.

One important aspect of SmartTrack is that it is hypo-allergenic, which means it is unlikely to cause allergic reactions in most people. The material is inert. As such, it does not react chemically with the body or release any harmful substances. Moreover, it is biologically stable, so it remains unchanged when exposed to the environment of the mouth.

The use of high-quality materials like SmartTrack helps to minimize the risk of allergic reactions for most patients. However, it’s important to note that while the material is generally well-tolerated, there may still be rare cases of individuals who have specific sensitivities or allergies to certain materials used in the aligners, or the cleaning agents used to keep them clean.

If you have any concerns about potential allergic reactions, it’s best to discuss them with your orthodontist or Invisalign provider. They can assess your specific situation and address any specific concerns you may have.

can you be allergic to aligners

Should I be worried about Invisalign Allergies?

Allergic reactions to Invisalign aligners are relatively rare but can occur in some individuals. These reactions are typically associated with the materials used in the aligners or the cleaning agents used to maintain them.

While it is important to note that Invisalign aligners are made from medical-grade, hypoallergenic materials, certain individuals may still develop allergic responses.

The chances of experiencing an allergic reaction to Invisalign aligners are generally low. The materials used in the aligners, such as polyurethane resin or polyethylene terephthalate glycol (PETG), are considered biocompatible and well-tolerated by the majority of patients.

However, individual sensitivities can vary, and some people may have allergies to specific substances.

What to do if you suspect an Invisalign Allergy

If you suspect you may be experiencing an allergic reaction to Invisalign aligners, it is crucial to consult with your dentist or orthodontist. They can assess the situation and provide appropriate guidance.

In the case of an allergic reaction, the following possible solutions can be considered:

Switching aligner materials

In some cases, an alternative material can be used for the aligners to reduce the risk of an allergic reaction. Your dental professional can discuss different options and recommend an alternative aligner material that may be better tolerated by your body.

Allergy testing

If you have a history of allergies or are unsure about the specific cause of the reaction, your dentist may recommend allergy testing. This can help identify any specific substances or components that may be triggering the allergic response. By identifying the allergen, it becomes easier to find an appropriate solution and make informed decisions regarding your treatment.

Adjusting the cleaning routine

Allergic reactions can also be triggered by cleaning agents used to maintain the aligners. If you suspect that the cleaning products you are using are causing the reaction, it may be necessary to switch to hypoallergenic or mild cleaning solutions specifically designed for aligners. Your dental professional can recommend suitable alternatives that are less likely to provoke an allergic response.

Seeking alternative orthodontic treatment

In cases where the allergic reaction persists or cannot be effectively managed, alternative orthodontic treatment options may need to be considered. Your dentist or orthodontist can discuss alternative treatment modalities that are better suited to your specific needs and minimize the risk of allergic reactions.

Here are some options:

  • Traditional Braces – They use metal brackets and wires to straighten the teeth. These are fixed to the teeth and adjusted periodically by an orthodontist to gradually move the teeth into their desired positions.
  • Ceramic Braces – They are similar to traditional braces but use tooth-colored or clear brackets instead of metal ones. This makes them less noticeable and more aesthetically pleasing. The wires used may still be made of metal or can be tooth-colored as well.
  • Lingual Braces – These are similar to traditional braces, but the brackets and wires are placed on the backside of the teeth, facing the tongue. This makes them virtually invisible from the front. Lingual braces can effectively correct various orthodontic problems but may require a longer adjustment period due to their positioning.
  • Clear Aligner Systems – While Invisalign aligners may not be suitable due to allergies, there are other clear aligner systems available. These aligners work similarly to Invisalign, using a series of custom-made clear trays to gradually move the teeth. Some popular alternatives include ClearCorrect, SmileDirectClub, and SureSmile.

Final Thoughts

Remember, allergic reactions to Invisalign aligners are relatively uncommon, and most patients can undergo treatment without any issues. By promptly addressing any concerns and working closely with your dental professional, you can ensure a safe and successful orthodontic experience.


  • Editorial team

    A team comprising oral health care professionals, researchers, and professional Writers, striving to impart you with the knowledge to improve your oral health, and that of your loved ones. 

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