510(k) Report

510(k) · Cleared

Cleared

Clear Image Aligners

K183643510(k) TraditionalCleared Jan 3, 20198-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

Specialty Appliance Works, Inc. · NXC Aligner, Sequential

Cleared on Jan 3, 2019 as substantially equivalent to K173785 (Derby Dental Laboratory, 2018) after an 8-day review. Its family tree reaches back 6 generations to 1978. 1 later device descends from it.

Decided
Jan 3, 2019
Review
8 days
Class
Class II
Product code
NXC
Recalls
None
Predicates
1

Its longest line of descent runs back 6 generations to K780619 (1978). 8 ancestors in all. 1 later device descends from it, 1 citing it directly.

  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 backK173785 Custom Clear Aligner SystemDerby Dental Laboratory · 2018
  7. This deviceK183643 Clear Image AlignersSpecialty Appliance Works, Inc. · 2019
  8. Descendant · cites it directly · 0 of its ownK192470 DenMat Orthodontic AlignersDenmat Holdings, LLC · 2019

Most influential descendants

Showing 1 of 1 · See all
  • K192470DenMat Orthodontic AlignersDenmat Holdings, LLC · 2019 · cites it directly0descendants
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—
−1K173785Custom Clear Aligner SystemDerby Dental Laboratory2018—
0 (this device)K183643Clear Image AlignersSpecialty Appliance Works, Inc.2019—
+1K192470DenMat Orthodontic AlignersDenmat Holdings, LLC2019—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
200410
201010

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201910
FIG. 1 — Lineage of K183643, 1978–2019Source: 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
Get a 510(k) Report

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
*K173785Custom Clear Aligner System
Summary page 4
…Sequential Aligners Classification: 21 CFR 872.5470: Orthodontic plastic bracket; Class II Product Code: NXC Predicate Device: K173785, Derby Dental Laboratory Custom Clear Aligner System Intended Use / Indications: The Clear Image A…
Derby Dental Laboratory2018—
†K171634Ortho System3Shape A/S2018—
†K1520863Shape Ortho System3Shape A/S2016—
†K062828Mouthguard and Aligner MaterialsDentsply Intl., Inc.2006—

Also cleared against K173785: 3 other devices →

What descends from it? (1)

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

NumberDeviceApplicantDecidedDescendants
K192470DenMat Orthodontic AlignersDenmat Holdings, LLC20190

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 41 years and passes through 5 companies; a new generation was cleared every 6.0 years on median.
  • None of the 8 ancestors has a recall.
  • Of its descendants, K192470 (Denmat Holdings, LLC, 2019) has gone furthest, with 0 descendants of its own.
  • 3 other devices also cite its predicate K173785.

How does its category compare?

All NXC devices

NXC Aligner, Sequential: FDA decisions, review times, recalls and adverse event reports over 20 years. 2019, 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?

The Clear Image Aligners are indicated for use in the alignment of permanent teeth through orthodontic treatment of misalignment and malocclusion,

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K183643: Clear Image Aligners.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 3, 2026. https://510kreport.com/device/K183643

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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