How Invisalign Works: The Complete Step-by-Step Process

According to Invisalign, transforming your smile is as easy as 1, 2, 3. Invisalign uses a series of custom-made clear aligners to gradually shift your teeth into the desired position. Each aligner is worn for 1-2 weeks before switching to the next.

The Invisalign Process Overview

Invisalign treatment involves a series of custom aligner trays that gradually shift your teeth into the desired position. These aligners are made using advanced technology and are designed to be switched out approximately every week. Each new set of aligners continues the movement of your teeth until they reach their final position.

Step 1: Meet with Your Doctor

Your Invisalign journey begins with a consultation. Using a state-of-the-art iTero Element™ scanner, your doctor will quickly and precisely create a detailed 3D scan of your current smile.

During this appointment:

• Your doctor assesses your oral health and determines if Invisalign is right for you
• A digital 3D scan captures your teeth (no messy impressions needed)
• You'll discuss your goals and concerns
• You may even see a sneak peek of what your new smile could look like

Step 2: Your Custom Treatment Plan (ClinCheck)

Using ClinCheck® software, your doctor maps out your entire treatment plan. This includes:

• A 3D simulation showing exactly how your teeth will move
• The expected number of aligners you'll need
• The estimated treatment duration
• A preview of your final smile

You'll know exactly what to expect at every step—and you can see your results before you even start treatment.

Step 3: Receive Your Aligners

Once you approve the treatment plan, your custom aligners are manufactured using SmartTrack™ material—exclusive to Invisalign and designed for optimal comfort and effectiveness.

At your aligner delivery appointment:

• Your doctor checks that the aligners fit correctly and are comfortable
• Attachments may be placed on certain teeth for complex movements
• IPR (interproximal reduction) may be performed if space is needed
• You receive your first sets of aligners with detailed instructions
• Your doctor explains how to insert, remove, and care for your aligners

Step 4: Begin the Transformation

Now the real work begins! During active treatment:

• Wear aligners 20-22 hours per day—remove only for eating and cleaning
• Switch to a new aligner every 1-2 weeks (as directed by your doctor)
• Attend regular check-ups every 4-8 weeks to monitor progress and receive new aligners
• Track your progress with the My Invisalign™ app

Each aligner moves your teeth a small amount—typically 0.25mm per aligner. The cumulative effect of wearing all your aligners results in your final, beautiful smile.

Step 5: Refinements (If Needed)

After completing your initial set of aligners, your doctor will evaluate your results. It's very common for patients to need a second round of "refinement trays" to address specific teeth that aren't quite perfect.

If refinements are needed:

• A new scan is taken of your teeth
• Additional aligners are ordered
• You continue wearing aligners until your teeth are in their ideal positions

Refinements are typically included in your original treatment cost.

Step 6: Look After Your New Smile (Retention)

Like all teeth straightening treatments, including braces, once you're done with Invisalign treatment, you'll need to wear a retainer to keep your teeth straight.

Your doctor will offer you custom-made Vivera™ retainers that are crafted using the same technology as your Invisalign aligners. Vivera retainers are 30% stronger and twice as durable as other clear retainers.

Typical retention schedule:

• First 3 months: Wear retainers full-time (22+ hours/day)
• After 3 months: Transition to nighttime wear only
• Long-term: Continue wearing nightly, indefinitely

The Technology Behind Invisalign

SmartTrack™ Material

Invisalign aligners are made from SmartTrack™—a patented material exclusive to Invisalign. It's designed to:

• Apply gentle, constant force for more predictable tooth movement
• Fit snugly and comfortably against your teeth
• Be virtually invisible

SmartForce™ Attachments

Attachments are small tooth-colored bumps bonded to specific teeth. They give aligners extra grip for complex movements like rotations and extrusions.

ClinCheck® Software

This proprietary software creates your 3D treatment plan and allows you to see your expected results before starting treatment.

Frequently Asked Questions

How long does Invisalign treatment take?

6-18 months on average. Simple cases (minor crowding or gaps) may finish in 3-6 months; complex cases can take up to 24 months.

When will I see results?

Many patients notice visible improvement within 2-3 months. Some see small changes as early as 2 weeks. The full transformation happens gradually over the treatment period.

Does Invisalign hurt?

You'll experience pressure and mild discomfort, especially when starting new aligners. This is normal and a sign that the aligners are working. Discomfort typically fades after 2-3 days.

What if I don't wear my aligners enough?

Treatment will take longer and results may be compromised. Wearing aligners 20-22 hours/day is essential for success. About 1 in 20 patients switch to braces because they can't maintain compliance.

Can I eat with Invisalign?

You must remove aligners before eating or drinking anything except water. This is actually an advantage—you can eat whatever you want with no food restrictions.

How do I clean my aligners?

Clean your aligners daily with a soft toothbrush and clear soap. Avoid hot water (it can warp the plastic) and toothpaste (it's abrasive).

Your Smile Transformation Awaits

Invisalign is a structured, technology-driven process that gives you predictable results. From the 3D preview to the final retainer, every step is planned with precision.

Key points to remember:

• You'll see your expected results before starting treatment
• Aligners are custom-made using SmartTrack™ material
• Wear aligners 20-22 hours/day for best results
• Change aligners every 1-2 weeks
• Attend regular check-ups to monitor progress
• Wear retainers after treatment to maintain your results