How Long Does Invisalign Take to Close a Gap: The Speedy Solution

If you’re dealing with teeth gaps, you might be wondering how long it takes for Invisalign to fix the problem. The duration of treatment can vary, but with the right strategy, it’s possible to achieve results relatively quickly.

Invisalign clear aligners are a revolutionary solution to close gaps and other dental issues. They are an excellent alternative to traditional braces and offer fantastic cosmetic results. Here’s what you need to know about the timeline for Invisalign treatment.

Understand the Issue

Before undergoing Invisalign treatment, it’s important to understand what causes tooth gaps. There are several reasons why gaps occur, including:

  • Teeth that are smaller than normal
  • Missing teeth
  • An overgrowth of the labial frenum tissue

If you have gap between your teeth, you’ll need an orthodontist to determine the exact cause of the issue and establish a treatment plan. Invisalign aligners can’t address every gap-related problem, so it’s important to have an accurate diagnosis before proceeding.

Consultation and Treatment Plan

When you decide to undergo Invisalign treatment, your first step is to visit an orthodontist for a consultation. During this session, you’ll discuss your needs, and the orthodontist will examine your teeth. Based on this examination, they will create a treatment plan tailored to your specific case.

Your treatment plan will determine the frequency of aligner changes, examine changes in the teeth, and help determine when you’ll achieve your goal. A typical treatment plan lasts anywhere from 12 to 18 months, depending on the severity of the case.

The Duration of Invisalign Treatment

Aligner Changes

The duration of your Invisalign treatment depends on how frequently you change your aligners. On average, aligner changes can occur between one and two weeks. For best results, you’ll need to change aligners on time, so they remain firm but comfortable.

The number of aligners in each set may vary, depending on the severity of the dental issue. The more significant the gap, the more aligners you’ll need. The duration of your teeth’s gap, increment of movement per tooth, and the total number of teeth will be the deciding factors on how many aligners you need. Note that using different products in conjunction with Invisalign can affect the duration of treatment.

Personal Compliance

For most patients, the total duration of Invisalign treatment depends on personal compliance. To get the desired results, you must wear your aligners for the prescribed number of hours each day.

Usually, the best times to remove aligners are when you’re brushing, flossing or having breakfast, lunch, and dinner, but it’s essential to keep aligners in for at least 22 hours a day. Failure to do so affects the overall duration of Invisalign treatment and the effectiveness of aligners to close gaps.

Factors That Affect Invisalign Treatment Time

The duration of Invisalign treatment varies depending on different factors, including:

  • The age of the patient: Adults’ teeth take longer to move because they require more bone remodeling than those in teens.
  • The wear time: Patients who wear the aligners for at least 22 hours a day achieve faster results than those who wear them for shorter periods. You may have to use a tray for a longer period if you fail to adhere to the plan properly
  • Orthodontic issues: Deep bites, overbites, and underbites take longer to correct, and as such, treatment will last longer.

Invisalign vs. Traditional Braces: Which is Faster?

Invisalign aligners are often faster than traditional braces in closing tooth gaps. The duration of traditional braces tends to last between 18 to 24 months, while Invisalign treatment lasts for around 12 to 18 month on average.

However, each case is different. Some patients may achieve quicker results using braces to fix gaps, depending on the situation. Note that braces may require more aftercare than Invisalign, which can affect overall treatment time.

Aftercare and Retainers

After Invisalign treatment is complete, a patient must wear a retainer for an extended period. Retainers hold teeth in the correct position, preventing regression to the previous state, and the orthodontist will determine how long this should last.

Wearing your retainers as prescribed will help ensure the fastest and most positive results of your Invisalign treatment. Retainers can be removable or permanent, and both are equally effective. Permanent retainers are generally more durable and reliable than removable ones.


Overall, the duration of Invisalign treatment to close gaps can vary depending on several factors, including the severity of the issue, patient compliance, and age. Getting an accurate diagnosis and treatment plan from an orthodontist can help you determine how long treatment will likely take.

While most people use Invisalign because of the cosmetic results, regular dental visits are critical to make sure there are no other underlying dental issues. With proper care and adherence to your treatment plan, you can enjoy a gorgeous smile in no time.

Common Questions and Answers

  • How long does Invisalign treatment last?

    Invisalign treatment lasts anywhere between 12 to 18 months on average. However, the duration can vary from one individual to the next, depending on various factors such as age, severity of the dental issue, and patient compliance.

  • Is Invisalign faster than braces?

    Invisalign is usually faster than traditional braces in closing tooth gaps. However, each case is unique and may require different approaches to getting the best results.

  • What can affect the duration of Invisalign treatment?

    The duration of Invisalign treatment can be affected by various factors, such as the severity of the gap or dental issue, age, and patient compliance.

  • How often do I have to change my Invisalign aligners?

    Invisalign aligners should be changed every one to two weeks, depending on your treatment plan. Adhering to the timeline is crucial to ensure the best results.

  • Do I have to wear retainers after Invisalign treatment?

    Yes, you have to wear retainers after Invisalign treatment to keep your teeth in the correct position. The duration of wearing retainers may vary, depending on the orthodontist’s recommendations.


Bishara, S. E. (2017). Textbook of orthodontics. Wiley-Blackwell.

Hoshing, N. (2012). The clarity and speed of orthodontic treatment with Invisalign aligners. Journal of orthodontic science, 1(2), 20–24.

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