Invisalign vs Braces: What Decides Which One Fits

Most people who search Invisalign vs braces want one answer: which is better. The honest answer is that neither is better for every mouth. The right one depends on how far each tooth has to travel, and in which direction.

Here is the plain version, including one thing you should know up front. Westlake Dental Care offers Invisalign. We do not offer braces. When your teeth need braces, Dr. Tarek says so and refers you to an orthodontist.

How do braces and Invisalign move teeth differently?

Both treatments do the same basic job: they apply gentle pressure to move teeth a little at a time. What differs is how they hold on.

Braces use small brackets cemented to the teeth and joined by a wire. The American Dental Association says the wire is "periodically tightened by your dentist or orthodontist" to shift the teeth gradually. The wire stays on the teeth until the dentist removes it.

Invisalign aligners are removable clear plastic trays. You wear a series of them, each one a small step past the last, and you take them out to eat and brush.

What do aligners handle well, and where do braces still win?

A 2019 systematic review of Invisalign accuracy looked at studies published between 2007 and 2017. It reported that accuracy of movement, meaning how closely teeth ended up where the plan said, ran from 55% to 72% across the studies. So teeth do not always land exactly where the plan put them.

The review also named the least predictable aligner movements: rotating a tooth and moving it vertically. It reported that braces gave better control of tooth tilt and root position. The authors concluded that "the results are not as accurate as those achieved by treatment with fixed appliances", though aligners can treat malocclusions. The same review reported good results for widening the arch with aligners.

That is not a verdict against aligners. Our Invisalign page puts the practical side this way. Aligners are good at crowding, spacing and mild-to-moderate bite problems, and braces may be preferable for complex movements. Which group your teeth fall into is something a dentist can read from a scan and an exam, and a search result cannot.

Which one is easier to live with and keep clean?

Braces ask more of your cleaning. The ADA notes that "eating too many sugary foods with braces can lead to plaque build-up". It also suggests avoiding popcorn, chewing gum, whole apples and other sticky foods.

Aligners come out for meals and cleaning, so you brush and floss the way you do now. A 2015 study in BMC Oral Health compared 100 patients, 50 in braces and 50 in Invisalign, after at least six months of treatment. Gum bleeding scores were about half as high in the Invisalign group, while plaque levels were not significantly different between the two.

The study looked at patients at one point in time, so it cannot prove that the aligners caused the healthier gums. The braces group was also younger on average, about 16 years old against about 32, which is a second reason to read the gap carefully. It does show the pattern, and it fits the daily difference: a wire you must brush around, or a tray you lift out.

Removable comes with a catch. Aligners only work while they are in your mouth. Invisalign's own FAQ says people typically wear them "20 to 22 hours a day to get the best results". Braces cannot be left on the bathroom counter, so they keep working without you. If you know you will forget, tell your dentist now, because that changes which treatment fits.

What happens if the aligners spend too much time out?

Aligners that are worn too few hours may not move teeth as planned, and the teeth tend to shift back without steady pressure. Our post on wearing Invisalign only at night walks through what that looks like.

Both treatments are followed by a retainer. The ADA says braces treatment is followed by a retainer that holds teeth in their new positions, and Invisalign's site lists retainers too.

What does Westlake do when you ask about Invisalign vs braces?

Treatment starts with a scan of your teeth and bite, and Dr. Tarek tells you whether he thinks aligners fit your case.

If aligners fit, you see your aligner plan on screen at the free second visit of our Smile Reveal. The planned steps are visible before you commit. Some Invisalign patients also get a physical mock-up of the planned smile at that visit. Some cases finish with bonding or veneers, and our cosmetic dentistry page shows what those involve.

If your bite needs braces, we tell you, and Dr. Tarek refers you to an orthodontist.

For how aligners work step by step, start with what Invisalign is and how it works. Our Invisalign page covers how we plan a case here. Cost is its own question, and how much Invisalign costs answers it in full.

Book an appointment or call (703) 444-5108 to have your teeth and bite looked at.