Can Aligners Fix Gaps Between My Teeth?

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Can Clear Aligners Close Gaps Between Teeth? Yes—Here’s How It Works

Do you have spaces or gaps between your teeth that affect your confidence or the way you bite and chew? You’re not alone—and the good news is that clear aligners can be an excellent solution. Yes, aligners are highly effective in closing gaps between teeth. Whether your spacing is mild or more noticeable, aligners offer a discreet, comfortable, and predictable way to bring your teeth closer together—without the need for metal braces.

How Aligners Close Gaps Between Teeth

Clear aligners like Invisalign work by applying gentle, consistent pressure on your teeth, gradually shifting them into better alignment. This includes closing the spaces between teeth, also known as diastemas.

Here’s how the process works:

1. A 3D digital scan is taken of your mouth

2. A series of custom trays are created to move teeth closer together

3. Each aligner makes small adjustments, worn for 1–2 weeks

4. Over time, gaps close as teeth shift into ideal positions

This method allows for precise, controlled movement and minimizes the risk of relapse or misalignment.

What Causes Gaps Between Teeth?

Tooth gaps can occur for several reasons:

• Genetics (spacing naturally runs in the family)

• Tongue thrusting or thumb sucking as a child

• Missing teeth or undersized teeth

• Jaw size imbalance

• Gum disease or bone loss (in some cases)

Clear aligners are suitable for most spacing-related cases, but your dentist will first evaluate the cause of your gaps to determine the best approach.

How Long Does It Take to Close Tooth Gaps with Aligners?

The treatment time depends on the size, number, and location of the gaps, as well as how consistently you wear your aligners.

On average:

• Small gaps: 3 to 6 months

• Moderate gaps: 6 to 12 months

• Large or multiple gaps: 12 to 18+ months

The key to success is compliance—aligners must be worn 20 to 22 hours per day, only removed for eating, drinking, and cleaning.

Will the Gaps Come Back After Treatment?

Not if you wear your retainers consistently. Once your aligners have closed the gaps, you’ll transition to a custom retainer to hold your teeth in place. This is crucial, as your teeth can gradually shift back over time without proper retention.

Are Aligners Better Than Braces for Closing Gaps?

Clear aligners offer several advantages:

• Nearly invisible—great for adults and teens

• Comfortable and removable—no food restrictions

• Digitally planned movements for precision

• Faster treatment in many cases of mild spacing

However, for very complex cases involving bite correction or large structural gaps, your provider may recommend a combination approach.

Dr. Bak’s Approach: Digital Precision with Proven Results

With over 25 years of orthodontic experience, Dr. Bak Nguyen uses advanced 3D scanning and digital planning to close gaps safely, predictably, and efficiently. Each treatment is customized to your mouth, your goals, and your timeline.

Book a free virtual consultation to learn more about your case, its treatment time and cost with Dr Bak Nguyen (the real one).

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