Orthodontics

Invisalign

With Jeannie Lee-Mirzayan, DDS, Gold Invisalign Provider

Updated September 15, 2026

“I want straighter teeth” is usually where the conversation starts, but it’s rarely the whole story. Teeth don’t get crowded or crooked for no reason, and before we talk about Invisalign, we want to know why yours moved in the first place. Sometimes that’s simple. Sometimes it changes the whole plan.

What we look for first

Everyone gets a 3D scan as part of their exam here. It’s how we look at every mouth now, not something you have to ask for. The scan shows us how your bite really comes together, where the crowding is coming from, and whether something else, like a habit, an old filling or crown, or uneven wear, is pushing the teeth around. Invisalign is often the right answer. Sometimes it’s the first step of a bigger plan, and sometimes the real fix is somewhere else.

This matters more than it sounds. Teeth that drifted because of a tongue habit will drift back after treatment unless the habit is treated, and teeth wearing unevenly because of the bite will keep wearing. Straightening teeth without knowing why they moved is how people end up doing this twice.

How treatment works

Once we know what we’re solving, Dr. Lee-Mirzayan plans a series of custom clear aligners that move your teeth a little at a time. No wires, no brackets.

  • You wear them 20 to 22 hours a day. They come out to eat and brush, and they’re in the rest of the time. This is what decides whether treatment finishes on schedule, and it’s almost entirely up to you.
  • You switch to the next aligner on a set schedule, usually every one to two weeks, depending on your plan.
  • Most cases take 6 to 24 months. Mild crowding is at the short end. A bite that’s really being rebuilt is at the long end.
  • You’ll probably need attachments. These are small tooth-colored bumps bonded to some teeth so the aligner has something to push against. Most plans need them, and they come off at the end.
  • Refinements are normal, not a failure. Teeth rarely move exactly to plan. A second short set of aligners at the end to finish the details is a normal part of treatment, so expect it instead of being surprised by it.

You see us the whole way through. Aligners mailed to your house with nobody checking your bite are a different product.

Adults, and whether you’re too old for this

You’re not. Teeth move at any age, because the biology that lets them move doesn’t switch off. We treat plenty of adults who had braces as teenagers, stopped wearing the retainer at nineteen, and watched their lower front teeth crowd up again over the years.

What changes with age is everything around the teeth. Adults are more likely to have gum disease that needs to be under control first, crowns and veneers we have to plan around, worn or chipped edges that will still be worn once the teeth are straight, and bone that responds a little more slowly. None of that rules out treatment. It just means the plan has to account for it, which is why we scan and photograph everything before anyone starts.

Adult cases are often more complicated than teenage ones, and clear aligners handle them well. What they can’t handle is a plan that ignores what else is going on in your mouth.

What Invisalign does well, and what it doesn’t

Aligners are very good at crowding, spacing, mild to moderate bite correction, and teeth that shifted back after old braces. That covers most of what we see.

They’re less suited to big differences in how the jaws line up, teeth that need to move a long way up or down, and some large rotations. Those cases can need braces, a specialist, or a combination. If yours is one of them, we’ll tell you at the consultation instead of starting something that stalls halfway.

Only the bottom teeth?

This is one of the most common questions we get. The answer is that it’s sometimes possible and often not a good idea, because moving one arch changes how it meets the other. We wrote a full answer: can you get Invisalign for bottom teeth only →

What it costs, and what affects the price

We don’t publish a price, because the range is wide enough that a number on a page would mislead you. What we can tell you is what changes it.

  • How far your teeth have to move. A little crowding and a real bite correction are different amounts of work and different numbers of aligners.
  • One arch or both.
  • Whether anything has to happen first. Gum treatment, a failing filling or crown, or a habit that needs work all come before the aligners.
  • What happens afterward. Some people want bonding or veneers once the teeth are in place, and plenty don’t need anything.

Most dental plans with orthodontic coverage pay a fixed lifetime amount instead of a percentage, and it’s usually modest. We go through the full number with you before anything starts. Our article on dental insurance explains why that lifetime maximum works the way it does.

The part everyone skips: what happens after

Teeth don’t set like concrete. They’re held in bone by a ligament that spent months being reshaped so they could move, and it doesn’t forget right away. Without a retainer, teeth drift back, and the lower front teeth are the first to go.

A retainer isn’t an afterthought or an upsell. It’s the second half of treatment, and it’s the reason so many adults are in our chair asking about aligners for the second time. We cover what actually keeps teeth in place here: why your teeth keep moving, and what your tongue has to do with it →

Three cases from our office

One patient’s lower teeth were crowded enough to cause problems with cleaning and long-term health, and Invisalign straightened them before it became a bigger issue. Another had gaps from a tongue thrust that bonding alone wouldn’t have fixed for good. Treating the habit first meant Invisalign could actually close them. A third patient’s teeth were wearing down unevenly because of his bite. Invisalign fixed the alignment first, then crowns restored what the wear had already cost him.

See how we solved T.G.’s crowding →  |  See how we solved J.L.’s gaps →  |  See how we solved D.E.’s uneven wear →

Invisalign or veneers?

They fix different problems. Aligners move the teeth you have. Veneers change their shape and color. Some cases need one, some need the other, and some need aligners first so the veneers afterward can be thinner and take less tooth. We compare them in detail here →

Getting started

A consultation starts with the scan, the photos, and a conversation about what’s bothering you and why your teeth are where they are. You’ll leave knowing whether aligners are the right choice, what the steps would be, and what it costs. Call 702-734-0776.

Common Questions

How long does Invisalign take?

Most cases take 6 to 24 months. Mild crowding is at the short end, and a bite that’s really being rebuilt is at the long end. The biggest factor isn’t the plan, it’s wear time. Aligners work when they’re in your mouth 20 to 22 hours a day, and a case that’s only worn part-time takes longer or stops moving.

Am I too old for Invisalign?

No. Teeth move at any age, because the biology that lets them move doesn’t switch off, and we treat a lot of adults who had braces as teenagers and stopped wearing their retainer. What changes with age is everything around the teeth: gum disease that needs to be under control first, crowns or veneers to plan around, and worn edges that will still be worn once the teeth are straight. None of that rules out treatment. It just has to be part of the plan.

How much does Invisalign cost in Las Vegas?

We don’t publish a price, because the range is wide enough that a number would mislead you. What changes it: how far your teeth have to move, whether it’s one arch or both, whether anything has to happen first, like gum treatment or replacing a failing filling or crown, and whether you want bonding or veneers afterward. Dental plans with orthodontic coverage usually pay a fixed lifetime amount instead of a percentage, and it tends to be modest. We go through the full number with you before treatment starts.

Can I get Invisalign for only my bottom teeth?

Sometimes it’s possible, and often it isn’t a good idea, because moving one arch changes how it meets the other. Whether treating one arch works depends on how your bite comes together now and what would happen to it once the lower teeth move. We’ve written the full answer separately, including what to ask before agreeing to it.

Do I have to wear a retainer afterward?

Yes, and it’s the second half of treatment, not an optional extra. Teeth are held in bone by a ligament that spent months being reshaped so they could move, and it doesn’t forget right away. Without a retainer, teeth drift back, and the lower front teeth go first. A lot of the adults asking us about aligners are doing it for the second time because their first retainer ended up in a drawer.

What are attachments, and will people see them?

Attachments are small tooth-colored bumps bonded to some teeth so the aligner has something to grip and can push a tooth in a certain direction. Most plans need them. They’re shaped and colored to blend in, they’re much less noticeable than brackets and wires, and they’re polished off at the end of treatment.

What if my teeth don’t end up where the plan said?

That happens often enough to have a name. Teeth rarely move exactly according to the digital plan, and a refinement, meaning a second short set of aligners to finish the details, is a normal part of treatment, not a sign something went wrong. It’s worth expecting from the start so it doesn’t surprise you at the end.

Can Invisalign fix any case?

No, and be careful with anyone who says it can. Aligners are very good at crowding, spacing, mild to moderate bite correction, and teeth that shifted back after old braces, which covers most cases. They’re less suited to big differences in how the jaws line up, teeth that need to move a long way up or down, and some large rotations, which can need braces or a specialist. If your case is one of those, we’ll tell you at the consultation instead of starting something that stalls halfway.

Does Invisalign hurt?

Not the way people remember braces hurting. Each new aligner feels tight, and your teeth are usually tender for a day or two after a switch. That’s the feeling of your teeth actually moving, and it settles down. There are no wires to tighten and no brackets rubbing the inside of your lip.

Thinking about Invisalign?

Tell us what is going on and we will help you find the piece that is missing. No pressure, no obligation.