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HomeCompareGraphy vs Kirei Line
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Graphy vs Kirei Line

Starting price, treatment length, supervision, FDA safety record and full spec sheet for Graphy and Kirei Line, side by side. Every figure links to the source that states it.

Prices verified Sep 30, 2026FDA records verified Sep 30, 2026
32comparisons with Graphy
2comparisons with Kirei Line

Graphy (Shape Memory Aligner (printed in the practice), Shape Memory Aligner (made by Graphy for partner clinics))·Kirei Line (Kirei Line Start, Kirei Line Light, Kirei Line Standard, Kirei Line Complete)

Graphy
In-office
Kirei Line
In-office
At a glance
Starting price
€1,999or from €70/month
¥99,000
Typical treatment

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: Graphy €1,999 and Kirei Line ¥99,000.
Go deeper

Open the full record

Graphy
  • Prices
  • Treatment length
  • Supervision
  • FDA safety
  • Specs
  • Sources
  • Where to get it
Kirei Line
  • Prices
  • Treatment length
  • Supervision
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Every comparison with these brands

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

All 32 comparisons with Graphy

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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 Data is aggregated from public sources and each brand's own terms and can be incomplete or out of date.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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3 months
Supervision
In-office
In-office
FDA safety
No recalls
No recalls
FDA adverse-event reports
3
0
Treatment
Treats
CrowdingSpacing and gapsRelapse after bracesMalocclusion in permanent teeth (FDA-cleared indication)
CrowdingSpacing and gapsProtrusion of the upper incisorsOpen bite (dental, not jaw-related)
Product lines
Shape Memory Aligner (printed in the practice), Shape Memory Aligner (made by Graphy for partner clinics)
Kirei Line Start, Kirei Line Light, Kirei Line Standard, Kirei Line Complete
Wear schedule
All-day (20 to 22 hrs), each aligner worn about 1 week
At least 20 hrs/day; tray-change interval not published
Spec sheet
Start method
Intraoral digital scan at the practice (no impressions)
Tooth scan and X-ray at the first partner-clinic exam (equipment varies by clinic), then impressions taken at the clinic to make the aligners
Material
Tera Harz Clear: a light-cured, methacrylate-based shape memory resin printed directly into the final aligner (models TC-85DAC, TA-28 and TR-07)
Not named; the brand describes a strong, crack-resistant, elastic aligner material
Retainers
Set by the practice. The Tenerife clinic quotes a removable or fixed retainer at €150 each, separately from treatment
Not included: retainer type and fee are set by the partner clinic; about 2 years of retainer wear advised
Whitening
Not published
At least one whitening gel included with a contract (not advised under 16; not used alongside attachments)
Refinements / touch-ups
Set by the practice. The Tenerife clinic includes planned refinements in its written quotation
Start, Light and Standard plans cap aligners at 24, 48 and 200; further aligners can be contracted one at a time. Complete plan has unlimited aligners within 5 years
Guarantee
Not published
Complete plan described at the March 2026 relaunch as unlimited with a 5-year guarantee; no separate guarantee terms published
Clinical oversight
In-office: a dentist or orthodontist plans, prints and monitors the treatment; the Tenerife clinic adds remote monitoring by intraoral camera at each aligner change
In-office: a dentist and dental hygienist at the partner clinic check progress at every visit; aligners are designed by licensed dental technicians on the dentist's instructions; a brand support team answers questions
Financing
Set by the practice: the Tenerife clinic offers up to 60 months subject to approval; MEMORYALIGNER (UK) offers 12 months interest-free
Set by each clinic: dental loan, credit card, cash or bank transfer (loan and card for age 18+)
HSA / FSA
Not published (no US patient price is listed yet; prices found are in Spain and the UK)
Not applicable (Japan; US HSA/FSA does not apply)
Insurance
Not published
Not covered: self-pay treatment outside Japan's public health insurance
Availability
Sold through dental practices and labs: Graphy says it exports to 85 countries, and its partner page lists business partners in the countries below. In the US the FDA has cleared the resin and Graphy announced a Florida central lab in February 2026
Japan (99 partner clinics listed across 35 prefectures)
Headquarters
Seoul, South Korea (6F, Ace Gasan FORHU, 225 Gasan Digital 1-ro, Geumcheon-gu)
Shibuya, Tokyo, Japan
Spec sources
  1. 1.itgraphy.com
  2. 2.itgraphy.com
  3. 3.itgraphy.com
  4. 4.itgraphy.com
  5. 5.accessdata.fda.gov
  6. 6.accessdata.fda.gov
  7. 7.api.fda.gov
  8. 8.smiletenerife.com
  9. 9.smiletenerife.com
  10. 10.smiletenerife.com
  11. 11.shapememoryaligners.co.uk
  12. 12.shapememoryaligners.co.uk
  13. 13.3dprintingindustry.com
  1. 1.kireilign.com
  2. 2.kireilign.com
  3. 3.kireilign.com
  4. 4.kireilign.com
  5. 5.kireilign.com
  6. 6.kireilign.com
  7. 7.prtimes.jp
Company
On the market since
2021
2017
Parent company
Graphy Inc., Seoul, South Korea
SheepMedical Technologies, Shibuya, Tokyo, Japan
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