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Northern Virginia Orthodontics’ goal is more than smile correction – it’s smile perfection. Dr. Zach Casagrande, Dr. Elvi Barcoma, Dr. Danielle Robb, Dr. Jessica Itani, Dr. Sonny Song & Dr. Kianoush Tari have successfully treated the most Invisalign® cases in the entire country, and NVO is ranked as the #1 Invisalign provider in North America.

There are millions of great smiles, and one best way to yours. The team at NVO can treat ANY case with clear aligners, from mild to complex malocclusions, and offers a variety of treatment options to fit every patients’ needs. Transform your smile – safely – at home with Smile Express™, a doctor-supervised treatment alternative to at-home orthodontic kits. Or get the smile of your dreams while you’re fast asleep with Nightlign by NVO™, a nighttime-only Invisalign treatment. No matter what your situation is, NVO can create a custom treatment plan to fit your lifestyle!

NVO has five convenient offices throughout the DC metro area: NVO’s Ashburn, Reston and Purcellville locations are open to braces and Invisalign patients, while our specialized Invisalign Studio offices in One Loudoun and Tysons Corner can help new and current Invisalign patients find the best way to their very best smiles. Plus, coming in 2023 is NVO’s newest office in Arlington! Whether you’re looking for an in-person consultation or a virtual appointment, we have the options to fit your needs. Discover the reasons why we’re the smartest choice for your perfect smile.

Reserve your free Invisalign consultation now at the NVO Invisalign Studio.
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Is Invisalign Right for You?
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Treatment Completely Aligned With Your Goals.

Invisalign treatment uses a series of virtually invisible, removable, and comfortable aligners that allow you to smile more during treatment as well as after. Invisalign clear aligners are made with 3D computer imaging technology and has been proven effective in treating a variety of cases including crowding, spacing, crossbite, overbite, and underbite.

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Questions about Invisalign?

Our expert staff of Invisalign specialists are here to help you.

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Over 20,000 Smiles Perfected

“I’m so glad I made the investment to go with aligners rather than metal braces. I’ve heard stories of people having food stuck in their metal braces, and I didn’t want to go through that. It’s so easy – all I have to do is remove my aligners when I eat.”


Dr. Casagrande and his staff are the best in the business. From the moment you walk in, you understand why this practice is highly recommended. The entire process he has in place is seamless and he takes time to carefully explain the procedures so that even the smallest of clients understand. His staff is fun, knowledgeable, and passionate about what they do!

Dale D.

From the minute we walked into Northern Virginia Orthodontics office, we’ve loved them. They are so friendly. It is an amazing, positive atmosphere. And we always leave feeling like we know what was done and why. We can’t recommend them enough!

Courtney C.

Smiles that Speak
for Themselves.

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Everything You Need To Know About Invisalign

It’s more than just a smile. It’s a first impression.

Actually, it’s a lasting impression.

And there’s nothing we love more than helping our patients discover the confidence that comes from a smile they can’t wait to share.

We are proud to be the #1 Invisalign provider in the U.S.

We understand that many variables come with deciding if Invisalign is right for you or someone in your family. At NVO, we are dedicated to answering all of your questions and taking the time to educate you on your options.

Here is everything you need to know about Invisalign.

What is Invisalign?

Invisalign clear aligners are an innovative product that strengthens teeth and corrects common oral issues without interrupting your busy life. The aligners are removable and clear, so you don’t have to worry about food restrictions or wire brackets.

Using advanced 3D computer-imaging technology, Invisalign depicts the treatment plan you and your coordinator discuss from the initial position of your teeth to your desired position. Then, custom aligners are created based on your case. Little by little, your teeth will move towards their final position.

What Conditions Does Invisalign Treat?

Invisalign treats a variety of conditions whether you have minor adjustments, baby teeth, or a difficult case.

The following are conditions that Invisalign treats:
• Overbite
• Underbite
• Crossbite
• Gap teeth
• Open bite
• Crowded teeth
• Baby and permanent teeth
• Generally straighter teeth

If you are unsure of which category you fall in, or if you are outside of the common conditions, schedule your complimentary consultation now!

What Is The Process Of Getting Invisalign?

When you visit our NVO offices, a treatment coordinator will take a digital scan of your mouth using our state-of-the-art iTero scanner. This scan creates a digital simulation that allows you to see how your smile can be transformed with Invisalign treatment.

After viewing your simulation, your treatment coordinator and doctor will share the best treatment options for you, answer any questions you have, and help you start your smile transformation right away.

How Is NVO Qualified?

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The doctors at Northern Virginia Orthodontics – Dr. Casagrande, Dr. Barcoma, Dr. Robb, and Dr. Itani have treated the most Invisalign patients in Virginia and rank as the #1 Invisalign providers nationwide.

NVO’s Invisalign Studio locations are exclusively designed to treat new and existing Invisalign patients, so NVO has a deep understanding of the process from consultation to the last months leading up to your new smile.

Are They Safe?

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Yes! Invisalign aligners were FDA approved in 1998 to be sold and contain no BPA, BPS, latex, or gluten, so you can rest assured that your smile transformation will happen safely. If you are concerned about safety when it comes to Invisalign, discuss it with us and we can discuss any concerns you may have.

Will Invisalign Aligners Affect My Speech?

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A large majority of patients report no difficulty with their speech while wearing Invisalign clear aligners. However, when you first get the aligners, you may notice a bit of an adjustment to get used to.

Invisalign is not shown to create long-term speech impediments. Before you know it, you will get used to the sensation.

How Long Will It Take Until I See Results?

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Despite every case having a unique timeline, after you begin wearing your Invisalign aligners, you can start seeing changes and positive results within weeks. Regardless of how your smile is looking at the time, it’s important to continue to wear your aligners consistently as detailed in your treatment plan.

I Don’t Want To Change My Routine, Will Invisalign Work For Me?

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Luckily for you, Invisalign aligners are removable, so you don’t have to worry about restricting certain foods or changing the way you brush and take care of your teeth.

Simply pop out your aligners before eating and brushing, and you’re good to go. Just be sure to put them back in promptly after you’re finished for the best results.

With Invisalign, Am I Guaranteed The Smile I Want?

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Every case is different, so we make no guarantees that Invisalign will completely fix your specific condition. That is why we start with a consultation, so we can discuss how certain treatments can benefit you. If you have specific goals in mind, please feel free to discuss those with us during the consultation.

While we can not guarantee a smile, we can confidently say that Invisalign fixes many conditions, and we have seen incredible results and success stories. We will extensively discuss your treatment plan so that you are aware of the expectations.

How Often Will I Change Aligners?

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When you change your aligners will depend entirely on the treatment plan we have in place. The doctors at NVO will tell you how often you should change to new aligners.

On average, you should expect to change your aligners weekly or once every two weeks.

Regardless of when you get new aligners, always clean your current set to avoid discoloration. We recommend keeping your old aligners, just in case you lose your current set. That way, you can wear your old aligners while you wait on your current aligner to be re-ordered. This will keep your teeth in position.

How Can I Make Sure My Teen Is Wearing Their Aligners?

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Teens have fun, busy schedules, but that doesn’t mean they can’t have a beautiful smile too! If you have a teen you’d like to get started with an Invisalign treatment plan but you’re worried they won’t wear them properly, you can relax thanks to the blue dot placed on all teen aligners.

Just tell them to “Say Cheese!” and you can rest assured that your child’s smile transformation is on track. If you’d like to discuss other ways to ensure your child is keeping up with the treatment plan, speak with us and we can figure out a plan!

What Are Invisalign Aligners Made Of?

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Invisalign clear aligners are made of a patented thermoplastic material called SmartTrack. The thin, clear, material was made just for Invisalign and fits comfortably over your teeth.

SmartTrack is special because it was only engineered for Invisalign and was determined the best plastic to use after testing 260 material compounds. Even though the plastic is extremely durable, it can still crack and break.

If you notice any cracks in your Invisalign, contact us quickly so that we can ensure you stay on track with your treatment plan.

Is Wearing Invisalign Uncomfortable?

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Overall, no, Invisalign is not uncomfortable. However, when you get your first aligners and subsequent new aligners according to your treatment plan, you may experience minor, temporary, discomfort.

You shouldn’t worry, though, because a little discomfort shows that your teeth are moving gradually towards your desired final smile.

Because Invisalign is created based on your specific smile needs, the clear aligners will fit comfortably on your teeth. There are no wires or brackets to poke or irritate your gums, so you won’t have to worry about emergency visits to have them repaired.

As a bonus, the clear aligners are virtually invisible, so you won’t have to adjust to a new look. Chances are, your peers will have to do a double-take to even notice them.

How Long Will Invisalign Treatment Take?

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Every smile is different and unique, so there isn’t an exact number. It all depends on the difficulty of your case, and how often you wear your aligners. On average, you can expect to wear your aligners for 12-18 months.

Generally speaking, that is faster than Braces, where we see an average of 2 years of wear. For a deeper look into Invisalign vs. Braces, visit the page here.

Can I Wear My Aligners At My Own Pace?

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It’s important to follow the treatment plan that you and your treatment coordinator discuss. Otherwise, the process may take longer than you’d like. It’s best to avoid taking out your aligners outside of the recommended time, but if you have a specific life circumstance that prevents you from wearing them as directed, please discuss this with our doctors.

How Frequently Should I Wear My Aligners?

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It is recommended to wear your aligners 20-22 hours per day, only taking them out while eating, drinking, brushing, and flossing. It may seem like a long time, but you get used to the feeling in your mouth quickly.

What If I Have A Special Occasion?

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While the recommendation is 20-22 hours per day, we understand that special occasions will pop up like a date, wedding, or event. We encourage you to speak to your treatment coordinator or doctor if you have concerns about removing your aligners for more than the recommended timeframe.

How Do I Clean My Aligners In Between Changing Them?

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It’s important to clean your aligners frequently as bacteria can build up and cause issues and discoloration. Every time you remove your aligners, regardless of time, rinse them. This will keep plaque and dried-up saliva at bay.

For a better clean, you can use antibacterial soap with a soft-bristled toothbrush. Don’t use toothpaste or colored and scented soaps, because they can leave a pesky residue on the aligners. We also recommend soaking your aligners once a day in Invisalign cleaning crystals.

How Many People Have Used Invisalign Clear Aligners?

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If you’re skeptical or desire more credibility, it may help to know that over 10 million people, including more than 1.4 million teens, have used Invisalign clear aligners since they were founded by Align Technology, Inc in 1997.

To put that into perspective, that’s more people than the entire state of Virginia has! Now that’s a reason to smile. Regardless of how many have worn them, NVO would never recommend a product that we didn’t have confidence in.

How Much Does Invisalign Cost?

It’s important to understand cost when deciding if Invisalign is the right decision for you. There’s no “one-size-fits-all” answer to this question.

Costs are determined by lots of factors, including how extensive your corrections will be, the length of your treatment, and all of the specific individualized details that might be prescribed by Dr. Casagrande, Dr. Barcoma, Dr. Robb, and Dr. Itani.

What Are The Payment Options?

Once you have scheduled your complimentary consultation and gotten your customized treatment plan, our treatment coordinators will go over financing options. We aim to provide a variety of options for our patients to consider.

Flexible In-office Payment Plans

The staff at NVO never wants finances to get in the way of your beautiful smile. We are happy to discuss in-office payment plans. We are committed to finding a plan that works for you and your specific treatment.


CareCredit is a healthcare credit card that helps you break up health and wellness needs into convenient monthly payments. NVO offers a no-down payment option. We recommend visiting the CareCredit website to see if you pre-qualify and to see your estimated monthly payments based on your treatment plan, or you can contact us for more information.

We will be happy to explain the program to see if it’s a good fit for you.