510(k) Report

510(k) · Cleared

Cleared

NextDent Ortho Flex

K221022510(k) AbbreviatedCleared Oct 21, 2022198-day reviewClass U

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

Vertex-Dental B.V. · MQC Mouthguard, Prescription

Cleared on Oct 21, 2022 as substantially equivalent to K212448 (Sprintray, Inc., 2021) after a 198-day review. Its family tree reaches back 2 generations to 2019. 1 later device descends from it.

Decided
Oct 21, 2022
Review
198 days
Class
Class U
Product code
MQC
Recalls
None
Predicates
1

Its longest line of descent runs back 2 generations to K183598 (2019). 1 later device descends from it, 1 citing it directly.

Descendants, by year cleared 2025: 1 descendant clearedK183598 · KeyPrint KeySplint Soft · Keystone Industries · 2019 · recalledK212448 · NightGuard Flex · Sprintray, Inc. · 2021201620182020202220242026
Descendants, by generation 1 generation forward: 1 descendant K212448 · NightGuard Flex · Sprintray, Inc. · 2021K183598 · KeyPrint KeySplint Soft · Keystone Industries · 2019 · recalled0
  1. Root · 2 generations backK183598 KeyPrint KeySplint SoftKeystone Industries · 2019 · Recalled
  2. 1 generation backK212448 NightGuard FlexSprintray, Inc. · 2021
  3. This deviceK221022 NextDent Ortho FlexVertex-Dental B.V. · 2022
  4. Descendant · cites it directly · 0 of its ownK251415 Additively Manufactured Aligner ResinAidite (Qinhuangdao) Technology Co., Ltd. · 2025

Most influential descendants

Showing 1 of 1 · See all
  • K251415Additively Manufactured Aligner ResinAidite (Qinhuangdao) Technology Co., Ltd. · 2025 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−2K183598KeyPrint KeySplint SoftKeystone Industries20191
−1K212448NightGuard FlexSprintray, Inc.2021—
0 (this device)K221022NextDent Ortho FlexVertex-Dental B.V.2022—
+1K251415Additively Manufactured Aligner ResinAidite (Qinhuangdao) Technology Co., Ltd.2025—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202510
FIG. 1 — Lineage of K221022, 2019–2025Source: 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 MQC? 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 MQC device

  1. #1 K203000 KeyPrint KeySplint Hardscore 15.3 · 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
*K212448NightGuard Flex
Summary page 4
…N.a. 21 CFR 872.5525 Regulation III. PREDICATE Nightguard Flex, K212448 (Primary predicate) DEVICE(s) IV. DEVICE DESCRIPTION Device Identification: Light-Cure Resin, provided in a container. Devic…
Sprintray, Inc.2021—

What descends from it? (1)

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

NumberDeviceApplicantDecidedDescendants
K251415Additively Manufactured Aligner ResinAidite (Qinhuangdao) Technology Co., Ltd.20250

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 3 years and passes through 3 companies; a new generation was cleared every 2.0 years on median.
  • 1 of the 2 ancestors has a recall of any class.
  • Of its descendants, K251415 (Aidite (Qinhuangdao) Technology Co., Ltd., 2025) has gone furthest, with 0 descendants of its own.

How does its category compare?

All MQC devices

MQC Mouthguard, Prescription: FDA decisions, review times, recalls and adverse event reports over 20 years. 2022, this device’s year, is highlighted.

FDA decisions per year · MQC

4in 2025

2007: 42009: 22010: 12011: 42012: 22013: 12014: 12015: 32017: 22019: 52020: 42021: 72022: 52023: 62024: 82025: 42026 (partial year): 2
2007high 8 (2024) · low 0 (2008)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · MQC

185in 2025

2007: 79 days median2011: 194 days median2015: 234 days median2019: 286 days median2020: 204 days median2021: 158 days median2022: 120 days median2023: 230 days median2024: 249 days median2025: 185 days median
2007high 286 (2019) · low 79 (2007)2026

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

Recalls per year · MQC

1in 2023

2023: 1
2007high 1 (2023) · low 0 (2007)2026

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

Adverse event reports per year · MQC

7in 2025

2007: 92008: 62009: 32010: 52011: 22013: 62014: 22015: 52016: 92017: 72018: 712019: 622020: 462021: 1112022: 1372023: 622024: 82025: 7
2007high 137 (2022) · low 0 (2012)2025

MAUDE reports naming product code MQC, 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
200747909
20080—06
20092—03
20101—05
2011419402
20122—00
20131—06
20141—02
2015323405
20160—09
20172—07
20180—071
20195286062
20204204046
202171580111
202251200137
20236230162
2024824908
2025418507
20262—0—

What is it indicated for?

NextDent Ortho Flex is a 3D print resin intended for the manufacturing of 3D printed dental splints and retainers. To retain the regulated dentition.

NextDent Ortho Flex is intended exclusively for professional dental work.

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. “K221022: NextDent Ortho Flex.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K221022

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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