Clear Aligners For Crowded Teeth: Why They Are An Effective Treatment

Fact Checked →

Introduction: A Brief Overview of Crowded Teeth

Teeth crowding is a common dental malocclusion which occurs when there isn't enough space in the jaw for teeth to fit comfortably. This can lead to misalignment, overlapping, and difficulty with oral hygiene. Traditionally, metal braces were the recommended treatment for correcting such dental malocclusion but with advancements in technology, clear aligners have become a popular and a discreet alternative.

Can Aligners Fix Crowded Teeth?

Clear aligners have been proven to be effective in fixing teeth crowding across different levels of severity offering a discreet alternative to metal braces. (1)

Effectiveness According to Types (Mild, Moderate, Severe Crowding):

Mild Crowding:

Clear aligners have been proven to effectively treat mild cases of teeth crowding. In the case where teeth are slightly misaligned or crowded, clear aligners can effectively and gradually shift teeth into their desired position. With compliance and regular check-ups with the doctor, patients with mild crowding can achieve their desired result within a few months. Below is a case of mild crowding treated by Dr. Salim Qadri with Eon Aligner within 5 months. (1)

Moderate Crowding:

For cases with moderate crowding, clear aligners are also considered to be an effective option. They are capable of addressing moderate misalignments by gradually re-positioning the teeth to their desired position. Moderate crowding cases tend to have a longer treatment duration compared to mild crowding as more adjustments are required. However, with consistent wear and proper monitoring by a doctor, patients can expect to start seeing noticeable improvements typically around 12 -18 months. Below is a case of moderate crowding treated by Dr. Mohammad Al Husini with Eon Aligner within 16 months.(1)

Severe Crowding:

Severe crowding can often be effectively treated with clear aligners providing an aesthetic solution for patients seeking to fix their teeth. While clear aligners can address many instances of severe crowding, some cases such as the ones requiring extraction may require a different approach for optimal results. It’s important to consult a doctor to  help determine the most appropriate treatment plan tailored to the patient’s specific needs. Below is a case of severe crowding treated by Dr. Chadi El Kassir with Eon Aligner within 27 months. (1)

Effectiveness according to age

Clear aligners offer effective treatment options for adults and teens, with treatment outcomes varying depending on factors such as jaw development, tooth movement, and patient compliance. (2)

Benefits of Clear Aligners Over Traditional Braces

Clear aligners offer several advantages over traditional braces:

Nearly Invisible:

They are nearly invisible, providing a discreet option for individuals concerned about aesthetics.


Unlike braces, which involve wires and brackets, clear aligners are comfortable and gentle on gums reducing the likelihood of irritation and discomfort.


Clear aligners are removable, giving the freedom to aligner wearers to eat or drink without any restrictions 

Better Oral Hygiene:

Unlike braces, which can trap food particles and make brushing and flossing difficult, aligners can be taken out for regular cleaning, promoting better oral health.

How Long Do Aligners Take to Fix Crowded Teeth?

The duration of clear aligner treatment for crowded teeth depends on the case complexity. On average, treatment can take anywhere from a few months to a couple of years. Factors such as the case severity and patient compliance can play a role in determining the length of treatment.

Which Aligners Are Best for Crowded Teeth?

When considering aligners for crowded teeth, multiple aspects come into play that you should pay attention to, they include:

Doctor Experience:

Choose a reputable provider with experience in clear aligners. Research their qualifications and credentials and review previous before-and-after cases that they have treated.


The cost of aligner treatment can vary depending on the complexity of your case. Ask your doctor if they offer flexible payment plans or financing options. Read more about the cost of clear aligners here.


Clear aligner treatment requires 22 hours of wear time to achieve optimal results. You need to ensure that you're committed to wearing your aligners as instructed by your dentist to achieve the desired outcomes. 

Post-Treatment Retention:

After completing your aligner treatment, it’s essential to follow your dentist’s instructions which may involve wearing retainers to maintain the alignment of your teeth and prevent them from shifting back to their original position.


In conclusion, clear aligners offer an effective solution for treating crowded teeth. Their ability to address mild to severe cases of crowding, along with advantages such as discreteness, comfort, and removability, makes them a preferred choice for many individuals seeking orthodontic treatment. If you're considering clear aligners for crowded teeth, consulting with a dentist or orthodontist is the first step towards embarking on your journey to a confident and radiant smile. Find your doctor by filling in the form 



Related Articles