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Nuvola vs Six Month Smiles

Starting price, treatment length, supervision, FDA safety record and full spec sheet for Nuvola and Six Month Smiles, side by side. Every figure links to the source that states it.

Prices verified Sep 30, 2026FDA records verified Sep 30, 2026
18comparisons with Nuvola
22comparisons with Six Month Smiles

Nuvola (Nuvola clear aligners, Nuvola Junior, Nuvola OP System (Freedom, Pro))·Six Month Smiles (6MS Invisible Aligners, 6MS Relapse Aligners, 6MS Mixed Appliance)

Nuvola
In-office
Six Month Smiles
In-office
At a glance
Starting price
Provider-setnot published
Provider-setnot published

Blue marks the lower price only where every compared price is quoted the same way (a monthly price in US dollars); prices quoted in another currency, as a one-time fee or as a provider-set range are shown exactly as stated and never converted. Adverse-event figures are raw counts of reports filed with the FDA, not rates (what the reports mean). Each spec value opens that brand's spec sheet, and its numbered sources verify the specs as a set. None of this is a recommendation: the right choice depends on your case, your budget and, above all, an in-person exam by a dentist or orthodontist.

The bottom line

What actually differs

  • Neither is marked lower, since only monthly prices quoted in US dollars are ranked against each other: Nuvola Provider-set and Six Month Smiles Provider-set.
  • Typical treatment differs: Nuvola 9-18 months and Six Month Smiles 6-10 months.
Go deeper

Open the full record

Nuvola
  • Prices
  • Treatment length
  • Supervision
  • FDA safety
  • Specs
  • Sources
  • Where to get it
Six Month Smiles
  • Prices
  • Treatment length
  • Supervision
Keep comparing

Every comparison with these brands

Each brand against every other brand on the market. All comparisons

All 18 comparisons with Nuvola

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  • vs ClearCorrect
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  • vs Dandy Clear Aligners
  • vs F22 Aligner
InvisibleBraces is an informational data platform, not a dentist, an orthodontist, or a seller of aligners. Nothing here is dental or medical advice, a diagnosis, or a recommendation to start, stop, or change any treatment. At-home clear aligners are not right for every case, and moving teeth without an in-person exam carries real risk. Data is aggregated from public sources and each brand's own terms and can be incomplete or out of date. Always consult a licensed dentist or orthodontist and confirm current prices and terms with the provider.
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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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Typical treatment
9-18 months
6-10 months
Supervision
In-office
In-office
FDA safety
No recalls
No recalls
FDA adverse-event reports
0
0
Treatment
Treats
Mild to severe crowdingSpacing and gaps (diastemas)Mild and moderate malocclusionsPost-orthodontic relapse
CrowdingSpacing and gapsCrossbiteOpen biteDeep biteRelapse after bracesMild to moderate misalignment
Product lines
Nuvola clear aligners, Nuvola Junior, Nuvola OP System (Freedom, Pro)
6MS Invisible Aligners, 6MS Relapse Aligners, 6MS Mixed Appliance
Wear schedule
At least 22 hrs/day, each aligner changed every 10 to 15 days as prescribed
Trays changed every 2 weeks; wear hours not published
Spec sheet
Start method
Impression taken by the treating dentist, with patient records uploaded to the NuvolaWeb platform
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
Evolution: proprietary hybrid co-polyester, designed and made in Italy
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
Removable retainers recommended after treatment, as advised by the dentist
Not included in the patient tray kit; the dentist orders removable retainers from 6MS after treatment and sets their price
Whitening
A home-whitening product is offered alongside Nuvola (not stated as included)
Not published
Refinements / touch-ups
Refinement phases included in the treatment cost by level: A (up to 14 aligners) 1, B (up to 28) 2, C (up to 48) 3, PLUS (over 48) 4 (unlimited in Europe); cases expire after 1 to 3 years
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
Not published
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: the dentist diagnoses, delivers each aligner series and typically sees the patient 1 to 2 times a month; the Nuvola DentalCheck app lets patients share progress and chat with the dentist
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 the dentist (Not published)
Set by each practice
HSA / FSA
Not published
The brand's cost page says HSA or FSA accounts can help offset the cost; acceptance is the practice's decision
Insurance
Not published
Some dental plans may cover part of treatment (brand's cost page)
Availability
Italy, UK and other European countries; FDA 510(k) cleared
United States and United Kingdom through trained dentists (the company says its providers are in over 50 countries, without separating braces from aligners)
Headquarters
San Cesareo (Rome), Italy
Carrollton, Texas, United States
Spec sources
  1. 1.nuvolaworld.com
  2. 2.nuvolaworld.com
  3. 3.nuvolaortodonzia.it
  4. 4.nuvolaortodonzia.co.uk
  5. 5.geoorthodontic.com
  6. 6.accessdata.fda.gov
  1. 1.6monthsmiles.com
  2. 2.6monthsmiles.com
  3. 3.6monthsmiles.com
  4. 4.6monthsmiles.com
  5. 5.6monthsmiles.com
  6. 6.6monthsmiles.com
Company
On the market since
2000
2019
Parent company
G.E.O. S.r.l. (Gruppo Europeo di Ortodonzia), San Cesareo (Rome), Italy; distributed internationally by Nuvola World Srl (Vicenza)
Xplora USA LLC, doing business as Six Month Smiles, Carrollton, Texas, United States
  • FDA safety
  • Specs
  • Sources
  • Where to get it
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  • vs Smilers

    • All 22 comparisons with Six Month Smiles

    • vs 32Co
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    • vs Clarity Aligners
    • vs ClearCorrect
    • vs ClearPath
    • vs Dandy Clear Aligners
    • vs Glidewell Clear Aligners
    • vs Graphy
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  • 7.6monthsmiles.com
  • 8.6monthsmiles.com
  • 9.6monthsmiles.com
  • 10.6monthsmiles.com
  • 11.api.fda.gov