510(k) Report

510(k) · Cleared

Cleared

Clearform Aligners

K191838510(k) TraditionalCleared Mar 20, 2020255-day reviewClass II21 CFR 872.5470

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Motor City Lab Works · NXC Aligner, Sequential

Cleared on Mar 20, 2020 as substantially equivalent to K180241 (Ortho Caps GmbH, 2018) after a 255-day review. Its family tree reaches back 6 generations to 1978. 3 later devices descend from it.

Decided
Mar 20, 2020
Review
255 days
Class
Class II
Product code
NXC
Recalls
None
Predicates
1

Its longest line of descent runs back 6 generations to K780619 (1978). 9 ancestors in all. 3 later devices descend from it, 1 citing it directly.

Other ancestors, by generationDescendants, by generation 2 generations back: 1 other ancestor3 generations back: 1 other ancestor5 generations back: 1 other ancestor 1 generation forward: 1 descendant2 generations forward: 2 descendants K180241 · Orthocaps Twinaligner · Ortho Caps GmbH · 2018K113618 · Clearcorrect System · Clearcorrect, Inc. · 2012K082556 · Clearcorrect · Clearcorrect, Inc. · 2009K071970 · Clear Image Aligner · Specialty Appliance Works, Inc. · 2007K981095 · Align System · Align Technology · 1998K780619 · Preformed Tooth Positioner · Tp Laboratories, Inc. · 1978−50
  1. Root · 6 generations backK780619 Preformed Tooth PositionerTp Laboratories, Inc. · 1978
  2. 5 generations backK981095 Align SystemAlign Technology · 1998
  3. 4 generations backK071970 Clear Image AlignerSpecialty Appliance Works, Inc. · 2007
  4. 3 generations backK082556 ClearcorrectClearcorrect, Inc. · 2009
  5. 2 generations backK113618 Clearcorrect SystemClearcorrect, Inc. · 2012
  6. 1 generation backK180241 Orthocaps TwinalignerOrtho Caps GmbH · 2018
  7. This deviceK191838 Clearform AlignersMotor City Lab Works · 2020
  8. Descendant · cites it directly · 2 of its ownK202792 BRIUS Clear AlignersBrius Technologies, Inc. · 2021
  9. Descendant · 2 generations on · 0 of its ownK233152 GENIOVA alignersGeniova Technologies Sociedad Limitada · 2024
  10. Descendant · 2 generations on · 0 of its ownK220835 ArklignersArklign Laboratories · 2022

Most influential descendants

Showing 3 of 3 · See all
  • K202792BRIUS Clear AlignersBrius Technologies, Inc. · 2021 · cites it directly2descendants
  • K233152GENIOVA alignersGeniova Technologies Sociedad Limitada · 2024 · 2 generations on0descendants
  • K220835ArklignersArklign Laboratories · 2022 · 2 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−6K780619Preformed Tooth PositionerTp Laboratories, Inc.1978—
−5K981095Align SystemAlign Technology1998—
−4K071970Clear Image AlignerSpecialty Appliance Works, Inc.2007—
−3K082556ClearcorrectClearcorrect, Inc.2009—
−2K113618Clearcorrect SystemClearcorrect, Inc.2012—
−1K180241Orthocaps TwinalignerOrtho Caps GmbH2018—
0 (this device)K191838Clearform AlignersMotor City Lab Works2020—
+1K202792BRIUS Clear AlignersBrius Technologies, Inc.2021—
+2K233152GENIOVA alignersGeniova Technologies Sociedad Limitada2024—
+2K220835ArklignersArklign Laboratories2022—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
200410
200810
201010

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202110
202210
202410
FIG. 1 — Lineage of K191838, 1978–2024Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in NXC? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new NXC device

  1. #1 K220287 Invisalign Systemscore 20.3 · 5 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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What was it cleared against? (1)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*K180241Orthocaps Twinaligner
Summary page 4
…intended use and design principles to the following predicate device: 510(k) Predicate Device Name Company Name K180241 Twin Aligner Ortho Caps GmbH Reference Device Name…
Ortho Caps GmbH2018—
†K180941Ortho System3Shape A/S2018—
†K062828Mouthguard and Aligner MaterialsDentsply Intl., Inc.2006—

Also cleared against K180241: 3 other devices →

What descends from it? (3)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K202792BRIUS Clear AlignersBrius Technologies, Inc.20212

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 42 years and passes through 6 companies; a new generation was cleared every 6.5 years on median.
  • None of the 9 ancestors has a recall.
  • Of its descendants, K202792 (Brius Technologies, Inc., 2021) has gone furthest, with 2 descendants of its own.
  • 3 other devices also cite its predicate K180241.

How does its category compare?

All NXC devices

NXC Aligner, Sequential: FDA decisions, review times, recalls and adverse event reports over 20 years. 2020, this device’s year, is highlighted.

FDA decisions per year · NXC

11in 2025

2007: 12008: 22009: 22010: 12012: 22013: 42015: 22016: 12017: 32018: 112019: 162020: 162021: 202022: 192023: 132024: 142025: 112026 (partial year): 5
2007high 20 (2021) · low 0 (2011)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · NXC

61in 2025

2013: 124 days median2017: 85 days median2018: 116 days median2019: 182 days median2020: 230 days median2021: 97 days median2022: 137 days median2023: 152 days median2024: 105 days median2025: 61 days median2026 (partial year): 127 days median
2007high 230 (2020) · low 61 (2025)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · NXC

2in 2024

2024: 2
2007high 2 (2024) · low 0 (2007)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · NXC

4,523in 2025

2007: 12008: 52009: 22010: 112011: 592012: 242013: 282014: 272015: 432016: 412017: 472018: 672019: 1272020: 1752021: 9292022: 6052023: 4332024: 8,9912025: 4,523
2007high 8,991 (2024) · low 1 (2007)2025

MAUDE reports naming product code NXC, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20071—01
20082—05
20092—02
20101—011
20110—059
20122—024
20134124028
20140—027
20152—043
20161—041
2017385047
201811116067
2019161820127
2020162300175
202120970929
2022191370605
2023131520433
20241410528,991
2025116104,523
202651270—

What is it indicated for?

ClearForm Aligners are indicated for the alignment of teeth in patients with permanent dentition (i.e. all second molars) during orthodontic treatment of malocclusions. The aligners position teeth by way of continuous gentle forces.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K191838: Clearform Aligners.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K191838

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026