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HomeBrandsSix Month Smiles
In-officeAvailable since 2019

Six Month Smiles

Six Month Smiles, long known for short-term clear braces, announced its 6MS Invisible Aligners in May 2019; this entry covers the aligners only. They are sold only to dentists and orthodontists who have taken a 6MS course, so a patient cannot order them and each practice sets the fee; no practice publishes a price for the aligners themselves. The FDA cleared the aligner in June 2021 (K210652) and lists no adverse event reports under either spelling of the brand. Sources

6MS Invisible Aligners, 6MS Relapse Aligners, 6MS Mixed Appliance·Xplora USA LLC, doing business as Six Month Smiles, Carrollton, Texas, United States

Sourced from each brand's published terms and primary FDA device records. Prices verified Oct 16, 2026, FDA records verified Oct 16, 2026. How we verify. Not dental or medical advice.

Available only through trained dentists in the US and UK; there is no way for a patient to order the aligners directly. Sources

At a glance

Prices verified Oct 16, 2026

Six Month Smiles (6MS Invisible Aligners, 6MS Relapse Aligners, 6MS Mixed Appliance) is a clear aligner brand available to new patients that has no FDA device recall on file. Treatment is in-office (doctor-directed, fitted through in-person visits).

Treatment length
6-10 monthstypical
Supervision
In-office
FDA safety
No recalls
What it treats

What it can treat

CrowdingSpacing and gapsCrossbiteOpen biteDeep biteRelapse after bracesMild to moderate misalignment

In Six Month Smiles's own words: Crowding; Spacing and gaps; Crossbite; Open bite; Deep bite; Relapse after braces; Mild to moderate misalignment. Sources

The dentist's scans or impressions go to 6MS, where specialists plan the tooth movement in CONFIDEX software overseen by orthodontists; the dentist must approve the plan, then 6MS prints and packages the aligner trays and a template for bonding attachments. The trays are described as Zendura FLX, a dual-shell material 0.76 mm thick, and the FDA summary describes thermoformed polyurethane-polyester composite aligners prescribed by a dental clinician.

Safety

Safety & recalls

This brand's FDA device record under the aligner product code NXC: recalls and MAUDE adverse-event reports, verified Oct 16, 2026.

No FDA device recall on file. Six Month Smiles does not appear in the FDA's list of every recall under product code NXC, checked Oct 16, 2026. The recalls that are on file are on the safety board.
FDA adverse-event reports (MAUDE)None on file

A raw count of unverified FDA reports filed under “Six Month Smiles” and product code NXC, not a rate. None on file may reflect how new or small the brand is, not proof of safety. Every brand's count is on the safety board.

Oversight

How treatment is supervised

In-officeevery in-office brand

Your dentist or orthodontist fits and adjusts treatment through regular visits. Suits: complex bites and larger movements that need hands-on care.

Six Month Smiles: In-office: a trained dentist examines, prescribes, fits and monitors; 6MS specialists prepare the plan, overseen by its orthodontists, and the dentist approves it Sources

Specs

Brand specs

Start method
Taken by the dentist in the practice: an intraoral scan (3Shape, iTero, Cerec or STL files accepted) or PVS impressions, with x-rays and photos; there is no at-home kit.
Material
Zendura FLX, a dual-shell material (hard outer shell, elastomeric middle layer), 0.76 mm (0.030 in), per 6MS; the FDA summary describes a thermoformed polyurethane-polyester composite.
Retainers
Not included in the patient tray kit; the dentist orders removable retainers from 6MS after treatment and sets their price
Whitening
Not published
Sources

Where the Six Month Smiles facts come from

The pages behind this brand's profile, specs and supervision model. Prices, treatment length and FDA records each link to their own source where they appear.

  1. 6monthsmiles.comhttps://www.6monthsmiles.com/products/invisible-aligners
  2. 6monthsmiles.comhttps://www.6monthsmiles.com/
  3. 6monthsmiles.comhttps://www.6monthsmiles.com/cost
  4. 6monthsmiles.comhttps://www.6monthsmiles.com/everything-you-need-to-know-about-braces
  5. 6monthsmiles.comhttps://www.6monthsmiles.com/invisible-aligners
  6. 6monthsmiles.com
Safety notices

Safety notices for at-home aligners

Regulatory safety findings a current reference should carry, even when the live per-brand feed has not caught up. Each is cited and dated.

Dental bodies caution against straightening teeth without an in-person exam

The American Dental Association maintains a standing policy discouraging direct-to-consumer teeth straightening, reaffirmed in December 2023 on patient-safety grounds. The American Association of Orthodontists holds that treatment should be under the in-person supervision of a licensed orthodontist, warns that moving teeth without an exam and X-rays can miss gum disease or cavities and cause irreversible, expensive harm (bone and tooth loss, receding gums, changed bites), and urges patients to report problems to the FDA. See a dentist before starting, and stop and seek care if you notice pain, looseness, or bleeding.

American Dental Association; American Association of Orthodontists · as of Dec 1, 2023

Reported harms in the FDA device adverse-event database

Thousands of adverse-event reports have been filed with the FDA under the sequential clear-aligner product code (NXC), the large majority coded as injuries, spanning both in-office and at-home brands. A peer-reviewed analysis of the NXC reports filed from 2010 to 2020 (651 reports, 104 of them involving direct-to-consumer aligners) found the direct-to-consumer reports dominated by bite problems (41.3%), orofacial pain (29.8%) and periodontal harm (26.6%) such as loose teeth, gum recession and bone loss, with tooth sensitivity, jaw (TMJ) problems, fractured teeth and tooth loss also reported; the authors note that some of these harms are irreversible. These are unverified spontaneous reports, not incidence rates, and do not establish that any device caused the event, but they underline why an in-person check and professional oversight matter.

Where to start

Ways to start Six Month Smiles

Every way to start, lowest price first.

Six Month Smiles costs Provider-set (not published) via Six Month Smiles (via a trained dentist), in-office (dentist / orthodontist), across 1 tracked way to start.

Provider, plan and what the price covers
Price
Get it
  • SMSix Month Smiles (via a trained dentist)In-office (dentist / orthodontist)

    6MS Invisible Aligners (via a trained dentist) · Treatment generally lasts 6 to 10 months (aligner page).

    Six Month Smiles says the cost is determined by your Six Month Smiles dentist. No practice page found states a price for the aligners themselves (the practice prices found are for the clear braces); the company's FAQ range of $3,500 to $5,000 covers Six Month Smiles treatment without separating braces from aligners. (reported)

    Provider-set (not published)
    Visit

Prices are each brand's stated starting figure, not the total cost. They change often; each links to its source. Re-verified 2026-10-16. This is information, not dental or medical advice.

Evidence

Clinical evidence & professional guidance

No registered study names Six Month Smiles

Independent clinical evidence on individual aligner brands is limited, and both the American Dental Association and the American Association of Orthodontists advise an in-person exam and dentist or orthodontist supervision before treatment. The clear aligner studies we index cover the category as a whole (130 registered on ClinicalTrials.gov).

Related

Related brands to compare

Invisalign
Invisalign clear aligners
Compare Six Month Smiles vs Invisalign
ClearCorrect
ClearCorrect clear aligners
Compare Six Month Smiles vs ClearCorrect
Spark
Spark clear aligners
Compare Six Month Smiles vs Spark
SureSmile
SureSmile clear aligners
Compare Six Month Smiles vs SureSmile
Questions

Common questions about Six Month Smiles

Is Six Month Smiles available to new patients?
Yes. Six Month Smiles is a clear aligner brand currently available to new patients, with no FDA device recall on file under the aligner product code. Treatment is in-office (doctor-directed, fitted through in-person visits). Source
How much does Six Month Smiles cost?
It costs Provider-set (not published) via Six Month Smiles (via a trained dentist), in-office (dentist / orthodontist). Prices depend on the plan (all-day vs night-only, single vs dual arch) and change often, and financing can spread it into monthly payments. See it below. Source
What can Six Month Smiles treat?
Invisible braces in the UKInvisible braces: types & costsRetainers after alignersSafety & recallsPrices & financingCompare brandsWhere to startEvidence hubMethodology
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The independent, fully-cited comparison of at-home clear aligner brands. Every figure traces to its source. Informational only, not dental or medical advice.

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Starting price
Provider-setnot published
Wear schedule
Trays changed every 2 weeks; wear hours not published
Studies naming Six Month Smiles
0of 130 registered clear aligner studies
Sources
Refinements / touch-ups
Up to 2 refinements within 2 years are included in the 6MS Invisible Aligners product (aligner page); a no-charge upgrade to a braces solution is offered to the dentist if braces would produce a better outcome.
Guarantee
No patient guarantee in the current terms: a limited warranty to the dentist covers defects in material and workmanship, not the outcome
Clinical oversight
In-office: a trained dentist examines, prescribes, fits and monitors; 6MS specialists prepare the plan, overseen by its orthodontists, and the dentist approves it
Financing
Set by each practice
HSA / FSA
The brand's cost page says HSA or FSA accounts can help offset the cost; acceptance is the practice's decision
Insurance
Some dental plans may cover part of treatment (brand's cost page)
Availability
United States and United Kingdom through trained dentists (the company says its providers are in over 50 countries, without separating braces from aligners)
Headquarters
Carrollton, Texas, United States
Wear schedule
Trays changed every 2 weeks; wear hours not published

Clear aligners are FDA Class II devices (product code NXC, 21 CFR 872.5470), cleared through the 510(k) process. Six Month Smiles treatment is in-office (doctor-directed, fitted through in-person visits).

https://www.6monthsmiles.com/dentists/aligner-essentials
  • 6monthsmiles.comhttps://www.6monthsmiles.com/legal/website-terms-and-conditions
  • 6monthsmiles.comhttps://www.6monthsmiles.com/legal/website-privacy-policy
  • 6monthsmiles.comhttps://www.6monthsmiles.com/legal/everyone-patient-notice
  • 6monthsmiles.comhttps://www.6monthsmiles.com/legal/everyone-patient-promise
  • api.fda.govhttps://api.fda.gov/device/510k.json?search=k_number:K210652
  • Belgal et al., Dentistry Journal 2023 (analysis of FDA MAUDE reports, product code NXC) · as of Sep 30, 2026

    All 22 head-to-head comparisons with Six Month Smiles
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    • Six Month Smiles vs Smilers
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    • Six Month Smiles vs SureSmile
    • Six Month Smiles vs uLab
    Six Month Smiles treats crowding, spacing and gaps, crossbite, open bite, deep bite, relapse after braces and mild to moderate misalignment. Complex bite problems, severe crowding, or cases needing significant tooth rotation usually need in-person care from an orthodontist.
    Does insurance cover Six Month Smiles?
    Insurance: Some dental plans may cover part of treatment (brand's cost page). HSA and FSA: The brand's cost page says HSA or FSA accounts can help offset the cost; acceptance is the practice's decision. Both from the brand's own terms and the reviews cited for it; check with your own plan before you buy. Brand specs
    Does Six Month Smiles include retainers?
    Not included in the patient tray kit; the dentist orders removable retainers from 6MS after treatment and sets their price. Every brand's retainer terms, and what replacements cost when sold direct, are on the retainers page. Retainers by brand
    Does Six Month Smiles offer a refund or guarantee?
    Guarantee: No patient guarantee in the current terms: a limited warranty to the dentist covers defects in material and workmanship, not the outcome. Refinements (extra aligners if teeth do not move as planned): Up to 2 refinements within 2 years are included in the 6MS Invisible Aligners product (aligner page); a no-charge upgrade to a braces solution is offered to the dentist if braces would produce a better outcome. Brand specs
    What is the difference between Six Month Smiles and Invisalign?
    Six Month Smiles is in-office (doctor-directed, fitted through in-person visits); Invisalign is in-office (doctor-directed, fitted through in-person visits). Price: Six Month Smiles a fee each provider sets, Invisalign $1,800-8,000 (provider-set). Treatment length, what each treats and both FDA safety records are side by side on the comparison page. Six Month Smiles vs Invisalign