510(k) · Cleared
ClearedSerafin®
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Tns Co., Ltd. · NXC Aligner, Sequential
Cleared on Sep 11, 2025 as substantially equivalent to K232074 (Tns Co., Ltd., 2024) and 1 other predicate after a 94-day review. Its family tree reaches back 7 generations to 1978.
- Decided
- Sep 11, 2025
- Review
- 94 days
- Class
- Class II
- Product code
- NXC
- Recalls
- None
- Predicates
- 2
Its longest line of descent runs back 7 generations to K780619 (1978). No later device cites it as a predicate yet.
- Root · 7 generations backK780619 Preformed Tooth PositionerTp Laboratories, Inc. · 1978
- 6 generations backK981095 Align SystemAlign Technology · 1998
- 5 generations backK081960 Invisalign SystemAlign Technology · 2008
- 4 generations backK143630 Invisalign SystemAlign Technology, Inc. · 2015
- 3 generations backK181739 Invisalign System with Mandibular Advancement FeatureAlign Technology, Inc. · 2018
- 2 generations backK220287 Invisalign SystemAlign Technology, Inc. · 2022 · Recalled
- 1 generation backK232074 Serafin®Tns Co., Ltd. · 2024
- This deviceK251758 Serafin®Tns Co., Ltd. · 2025
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −7 | K780619 | Preformed Tooth Positioner | Tp Laboratories, Inc. | 1978 | — |
| −6 | K981095 | Align System | Align Technology | 1998 | — |
| −5 | K081960 | Invisalign System | Align Technology | 2008 | — |
| −4 | K143630 | Invisalign System | Align Technology, Inc. | 2015 | — |
| −3 | K181739 | Invisalign System with Mandibular Advancement Feature | Align Technology, Inc. | 2018 | — |
| −2 | K220287 | Invisalign System | Align Technology, Inc. | 2022 | 1 |
| −1 | K232074 | Serafin® | Tns Co., Ltd. | 2024 | — |
| 0 (this device) | K251758 | Serafin® | Tns Co., Ltd. | 2025 | — |
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 K220287 Invisalign Systemscore 20.3 · 5 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (2)
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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K232074 | Serafin®Summary page 5…·Class: 2 ·Classification Product Code: NXC ·Classification Name: Orthodontic plastic bracket 3. PREDICATE DEVICE Primary Predicate: Serafin® (K232074) Additional Predicate: Invisalign System (K220287, Align Technology Inc.) 4. DEVICE DESCRIPTION Serafin® is com… | 2024 |
| * | K220287 | Invisalign SystemSummary page 5…·Classification Name: Orthodontic plastic bracket 3. PREDICATE DEVICE Primary Predicate: Serafin® (K232074) Additional Predicate: Invisalign System (K220287, Align Technology Inc.) 4. DEVICE DESCRIPTION Serafin® is composed of series of transparent removable orthodontic appl… | 2022 |
What descends from it?
No later submission names this one as a predicate yet.
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 47 years and passes through 4 companies; a new generation was cleared every 3.4 years on median.
- 1 of the 7 ancestors has a recall of any class.
How does its category compare?
All NXC devicesNXC Aligner, Sequential: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.
FDA decisions per year · NXC
11in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · NXC
61in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · NXC
2in 2024
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · NXC
4,523in 2025
MAUDE reports naming product code NXC, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 1 | — | 0 | 1 |
| 2008 | 2 | — | 0 | 5 |
| 2009 | 2 | — | 0 | 2 |
| 2010 | 1 | — | 0 | 11 |
| 2011 | 0 | — | 0 | 59 |
| 2012 | 2 | — | 0 | 24 |
| 2013 | 4 | 124 | 0 | 28 |
| 2014 | 0 | — | 0 | 27 |
| 2015 | 2 | — | 0 | 43 |
| 2016 | 1 | — | 0 | 41 |
| 2017 | 3 | 85 | 0 | 47 |
| 2018 | 11 | 116 | 0 | 67 |
| 2019 | 16 | 182 | 0 | 127 |
| 2020 | 16 | 230 | 0 | 175 |
| 2021 | 20 | 97 | 0 | 929 |
| 2022 | 19 | 137 | 0 | 605 |
| 2023 | 13 | 152 | 0 | 433 |
| 2024 | 14 | 105 | 2 | 8,991 |
| 2025 | 11 | 61 | 0 | 4,523 |
| 2026 | 5 | 127 | 0 | — |
What is it indicated for?
The Serafin is intended for the orthodontic treatment of malocclusion in patients with mixed and permanent dentition.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K251758 · printed Nov 6, 2026
Cite this page
510(k) Report. “K251758: Serafin®.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K251758
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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