Which is faster, Invisalign or braces?
For mild to moderate crowding, research finds similar treatment times. A 2024 systematic review in Clinical Oral Investigations found no significant difference in treatment duration between clear aligners and fixed braces in those cases. The authors rated the evidence low and said more well-run trials are needed, especially for severe cases.
A larger overview of 18 systematic reviews found conflicting results on duration, with aligners possibly shorter in mild to moderate cases. So no source gives a clear winner. Time depends on how far teeth must move, how well you follow the plan, and the type of movement needed.
For a general range, Cleveland Clinic says braces take about two years on average. Some people finish in under 12 months, and others need as long as three years. The ADA says most people are in treatment from one to three years, followed by a retainer. Your dentist can estimate time for your teeth after an exam.
What is the difference between Invisalign and braces?
Braces are brackets and wires fixed to your teeth. Clear aligners are removable plastic trays. Cleveland Clinic describes both in its overview of braces. The table gives a side-by-side view.
| Clear aligners (such as Invisalign) | Traditional braces | |
|---|---|---|
| What it is | A series of custom-made clear trays. | Brackets bonded to teeth, joined by a wire. |
| Removable | Yes. | No. |
| Wear time | At least 22 hours a day, per Cleveland Clinic. | Always on. |
| Swapping or adjusting | A new tray about every two weeks. | The dentist adjusts the wire at visits. |
| Eating | Take them out to eat and drink. | Avoid hard and sticky foods. |
| Cleaning | Clean the trays daily, and brush and floss as usual. | Brushing and flossing around brackets takes more effort. |
| Look | Mostly clear. | Visible, though ceramic or clear options are less noticeable. |
| Strongest evidence | Mild to moderate cases, per research. | All case types, including severe. |
| After treatment | Retainer. | Retainer. |
Cleveland Clinic lists several braces types: metal, ceramic, lingual (behind the teeth), and self-ligating. It says metal braces are visible, and ceramic braces are less noticeable but more fragile.
Which is more comfortable?
Research favors aligners on comfort, with caveats. The overview in Clinical Oral Investigations found aligners were more comfortable and had a smaller effect on eating and chewing. On pain, the results were unclear. The same overview found periodontal health was better with aligners.
Braces have their own discomfort. Cleveland Clinic says you will likely have discomfort for a few days after you get braces and some tenderness after tightening. Normal side effects include irritation to the tongue, lips, or cheeks, jaw pain, and trouble eating after a tightening. Cleveland Clinic says dental wax can help with rough brackets or wires.
Aligners also need effort. You wear each set for about two weeks and keep them in at least 22 hours a day, and you take them out only to eat, drink, and brush. Aligners only work when worn, so wear time matters.
Which is better for my bite?
The answer depends on your case. A review of 18 systematic reviews found clear aligners effective for mild to moderate malocclusions, with inferior outcomes for severe cases or specific tooth movements. Its conclusion was that evidence supports aligners as an alternative to fixed appliances for mild to moderate malocclusion, but not for severe cases.
Cleveland Clinic says the same in plain terms: Invisalign can correct most mild to moderate orthodontic issues, and if your case is severe, traditional braces might be more suitable. Only a dentist can tell you which describes your case. Here, malocclusion means the way your teeth fit together.
What counts as mild or severe is for your dentist to judge, using an exam, X-rays, and scans or impressions. Be skeptical of any source that promises one option for every bite.
What does the practice offer?
The practice’s service pages describe Invisalign and clear aligner treatment. Braces are not listed among them. If your dentist thinks your bite needs braces, or that you would be better served elsewhere, the dentist will tell you.
The ADA says orthodontic treatment may be provided by your dentist or an orthodontist, a dentist with extra training in diagnosing and treating dental and facial irregularities. Cleveland Clinic adds that orthodontists place braces in most cases, but some general dentists offer them. This is general information about the field, not a description of the practice.
Do I need a retainer afterward?
Yes. After braces or aligners, a retainer holds your teeth where they now sit. Cleveland Clinic says anyone who wears braces will need a retainer, which prevents teeth from shifting back. Its retainer page says to expect to wear it day and night for at least four to six months, and at night after that. Its list of retainer types includes clear plastic and wire versions, and a fixed wire bonded behind the teeth.
The overview in Clinical Oral Investigations found relapse was greater with clear aligners, so retainers matter after aligners too. Our blog post on why you still need retainers explains more. Your dentist will give you a schedule.
Can adults use aligners or braces?
Yes. The ADA says healthy teeth can be treated orthodontically at any age. Cleveland Clinic says about 20% of orthodontic patients in the United States are over 18, and that adults are just as likely to get results, although it might take a little longer. Our post on clear aligners for adults over 50 covers what changes with age.
Before treatment, your dentist checks your gums and existing dental work, so tell your dentist about all of it.
Is straightening teeth only about looks?
Not only. The ADA says correcting an abnormal bite can create a nicer-looking smile, and more importantly can lead to a healthier mouth. It says not correcting an abnormal bite could result in further problems, including tooth decay, gum disease, tooth loss, affected speech or chewing, abnormal wear to tooth enamel, and jaw problems.
Cleveland Clinic adds that braces can make teeth easier to clean and can restore chewing and speaking. That does not mean every crooked tooth needs treatment. It means the decision is worth a talk with your dentist, not just a mirror check.
At what age should treatment start?
It depends on the person. The ADA says abnormal bites usually become noticeable between ages 6 and 12, and that orthodontic treatment often begins between ages 8 and 14. Cleveland Clinic says the generally preferred window for braces is between ages 9 and 14, because the jaws are still developing. Both say adults can be treated too.
Children’s cases are a separate conversation from adult ones. If you are asking about your child, start with a dental checkup and ask when to plan a visit about their bite.
What should I know about cleaning and eating?
Cleaning matters with both. Cleveland Clinic says proper oral hygiene is even more important with braces, because plaque and tartar can build up around brackets and wires, which can lead to cavities and gum inflammation. It advises a soft-bristled brush, flossing around the braces once a day, and an alcohol-free antibacterial rinse twice a day. If you have clear aligners, clean them every day and store them properly.
For food, the ADA advises avoiding popcorn, corn on the cob, chewing gum, whole apples, and other sticky foods with braces. Cleveland Clinic says to avoid hard, crunchy, or sticky foods while in treatment. With aligners, you take the trays out to eat, so food rules are looser, but you brush before putting them back.
What are the downsides of each option?
Both have trade-offs. Weigh these with your dentist.
| Clear aligners | Braces | |
|---|---|---|
| Effort | Daily wear of at least 22 hours, plus cleaning the trays. | Extra brushing and flossing around brackets and wires. |
| Limits | Weaker results in severe cases, per the overview. | Visible hardware, though less noticeable types exist. |
| Food | Trays come out to eat, then go back in. | Avoid hard, crunchy, and sticky foods the whole time. |
| Comfort | Research found aligners more comfortable. | Discomfort for a few days, and after tightening. |
| Repairs | Lost or damaged trays need replacing. | Broken wires or brackets need a visit. |
| After | The overview found relapse was greater, so wear your retainer. | A retainer is needed to hold the result. |
Cleveland Clinic says to call your provider if you have pain that does not go away with medication, broken wires or brackets, trauma to your mouth or face, or bleeding or infection in your gums.
What else changes how long treatment takes?
The type of appliance is one factor, not the only one. The 2024 review notes that while the appliance type is a critical determinant of treatment duration, other patient and treatment factors can significantly affect treatment time. How far teeth need to move matters. So does how closely you follow the plan, and how often you attend visits.
Ask your dentist what could speed up or slow down your plan. A dentist who explains these early gives you a more honest estimate than one who quotes a single number for everyone.
What happens at the first visit?
The first visit is an exam and a conversation. Your dentist looks at your teeth, gums, and bite, and may take photos, X-rays, and a scan or impression of your teeth. The practice’s service page for clear aligners describes starting with an impression and then developing a plan for moving your teeth. Your dentist then explains what your bite needs and whether aligners are a fit.
You do not have to decide at that visit. Ask for the plan, the expected time, and the estimate in writing. Compare them with any other opinion you get.
What does treatment cost?
The practice gives each patient their own estimate after an exam. No prices appear here. Costs depend on how long treatment runs, how complex your bite is, and your plan’s rules for straightening teeth. Ask what the estimate includes, such as retainers and follow-up visits. See insurance and financing for how to ask.
What should I ask my dentist?
- Is my case mild, moderate, or severe, and why?
- Can aligners move my teeth the way my bite needs?
- How long do you expect treatment to take, and what could change it?
- How many hours a day must I wear aligners, and what if I do not?
- What retainer will I need, and for how long?
- What does the estimate include?
Next step
To learn how the practice describes clear aligner treatment, visit our Invisalign page. Call Town Center Dental at (636) 273-5866 or request an appointment, and your dentist will talk with you about what to expect.
Frequently asked questions
Is Invisalign faster than braces?
Not clearly. A 2024 systematic review found no significant difference in treatment time for mild to moderate crowding, though the evidence was rated low. A larger overview found conflicting results on duration. Cleveland Clinic gives about two years on average for braces. Your dentist can estimate time for your teeth.
How long does Invisalign take to straighten teeth?
It depends on your teeth. Published research on clear aligners and fixed braces found similar treatment times for mild to moderate crowding. The practice's service pages explain that the dentist maps the plan after a scan or impression, and your dentist can give a time estimate for your case after an exam.
Are clear aligners an option for adults over 50?
Often yes. The ADA says healthy teeth can be treated orthodontically at any age, and Cleveland Clinic says you are never too old. About 20% of orthodontic patients in the United States are over 18. Gum health, existing dental work, and your bite all matter, so your dentist checks these first.
Which is better for a crooked or crowded bite?
For mild to moderate crowding or gaps, research supports aligners as an alternative to fixed braces. For severe cases or hard tooth movements, a review found inferior outcomes with aligners. Cleveland Clinic says braces may suit severe cases better. Your dentist decides after an exam and X-rays.
Do I need a retainer after Invisalign or braces?
Yes, usually. Cleveland Clinic says anyone who wears braces needs a retainer afterward to keep teeth from shifting back, and the ADA says a retainer follows treatment. A review found relapse was greater with aligners. Your dentist will tell you when to wear yours and for how long.
Terms on this page
Sources
- Cleveland Clinic: Teeth Braces
- Cleveland Clinic: Teeth Braces (adults)
- Cleveland Clinic: Teeth Braces (who places them)
- Cleveland Clinic: Teeth Braces (clear aligners)
- Cleveland Clinic: Teeth Braces (wear time)
- Cleveland Clinic: Teeth Braces (time)
- Cleveland Clinic: Teeth Braces (range)
- Cleveland Clinic: Teeth Braces (Invisalign vs braces)
- Cleveland Clinic: Teeth Braces (adult results)
- Cleveland Clinic: Teeth Braces (when to call)
- Cleveland Clinic: Teeth Braces (ceramic)
- ADA MouthHealthy: Braces (health)
- ADA MouthHealthy: Braces (age)
- Cleveland Clinic: Teeth Braces (best age)
- Cleveland Clinic: Teeth Braces (side effects)
- Cleveland Clinic: Teeth Braces (hygiene)
- Cleveland Clinic: Teeth Braces (retainers)
- ADA MouthHealthy: Braces
- ADA MouthHealthy: Braces (any age)
- ADA MouthHealthy: Braces (provider)
- ADA MouthHealthy: Braces (foods)
- Cleveland Clinic: Teeth Retainer
- Cleveland Clinic: Teeth Retainer (purpose)
- Clinical Oral Investigations: overview of systematic reviews, clear aligners vs fixed appliances
- Clinical Oral Investigations: overview (duration and relapse)
- Clinical Oral Investigations: overview (comfort)
- Clinical Oral Investigations: overview (conclusion)
- Clinical Oral Investigations: duration in crowding cases
- Clinical Oral Investigations: duration in crowding cases (other factors)
- Clinical Oral Investigations: duration in crowding cases (evidence quality)
Written by Town Center Dental and checked against the sources above on October 26, 2026. Dental guidance changes, so check the linked page, and ask your dentist about your own care.