12 Disadvantages of Invisalign You Must Know

Updated: January 13, 2025

Invisalign is a revolutionary orthodontic treatment that offers a discreet way to achieve a perfect smile. However, like any medical or cosmetic procedure, it’s not without its drawbacks. Here are 12 disadvantages of Invisalign you should be aware of before committing to the treatment.

1. Requires Discipline

Invisalign aligners must be worn for 20-22 hours a day to be effective. If you frequently forget to wear them or take them out for extended periods, your treatment may be delayed or compromised.

2. Inconvenience of Removal

While aligners are removable, taking them out every time you eat or drink (except water) can become tedious. You’ll also need to clean your teeth and the aligners before reinserting them, adding to your daily routine.

3. Speech Impediments

Some patients experience a temporary lisp or difficulty pronouncing certain words during the initial phase of treatment. While this typically subsides within a week, it can be inconvenient for those who rely heavily on clear communication.

4. Cheek and Tongue Irritation

Although smooth, the aligners can cause irritation to your cheeks and tongue, particularly in the early stages. This discomfort usually diminishes over time but can still be bothersome.

5. Dry Mouth

Wearing aligners for extended periods can lead to a reduction in saliva production, causing a condition known as xerostomia or dry mouth. This can make speaking and swallowing less comfortable.

6. Risk of Allergic Reactions

Although rare, some individuals may experience an allergic reaction to the thermoplastic material used in Invisalign aligners. Testing a small piece of similar plastic can help determine if you’re at risk before starting treatment.

7. Tooth and Jaw Pain

As with any orthodontic treatment, Invisalign exerts pressure on your teeth to move them into alignment. This pressure can cause soreness in your teeth and jaw, especially when starting a new set of aligners.

8. Expensive Treatment

Invisalign is often more expensive than traditional braces, especially for complex cases. Costs can vary depending on the severity of your misalignment and the length of treatment required.

9. Not Suitable for Complex Cases

While effective for mild to moderate alignment issues, Invisalign may not be the best option for severe misalignments, significant bite problems, or cases requiring substantial tooth movement.

10. Attachments Can Be Noticeable

Some cases require small, tooth-coloured attachments to help the aligners grip the teeth and move them effectively. These attachments can make the aligners more visible, reducing their aesthetic appeal.

11. Frequent Cleaning Required

Invisalign aligners must be cleaned regularly to prevent plaque buildup, discolouration, and bad breath. This adds another step to your oral hygiene routine and requires diligence to maintain.

12. Weight Loss Due to Eating Restrictions

Since aligners need to be removed for meals and snacks, some patients find themselves eating less frequently. This can inadvertently lead to weight loss, which might not be desirable for everyone.

Final Thoughts

Invisalign is a fantastic option for many people, but it’s essential to weigh the pros and cons before making a decision. Consider your lifestyle, budget, and the complexity of your dental issues. To find out if Invisalign is right for you, consult with a trusted orthodontist or book a free consultation at CompareDent.