510(k) Report

510(k) · Cleared

Cleared

Remi Custom Night Guard

K243516510(k) TraditionalCleared Feb 10, 202589-day reviewClass U

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

Grindguard, Inc. · MQC Mouthguard, Prescription

Cleared on Feb 10, 2025 as substantially equivalent to K241369 (Lijia, LLC, 2024) after an 89-day review. Its family tree reaches back 5 generations to 1989.

Decided
Feb 10, 2025
Review
89 days
Class
Class U
Product code
MQC
Recalls
None
Predicates
1

Its longest line of descent runs back 5 generations to K882303 (1989). 11 ancestors in all. No later device cites it as a predicate yet.

  1. Root · 5 generations backK882303 H&M Anti-Snoring DeviceHays & Meade, Inc. · 1989
  2. 4 generations backK014079 DR. Hays Bite GuardInventive Resources, Inc. · 2002
  3. 3 generations backK121365 Thermoformed MouthguardsGlidewell Laboratories-Sleep Devices Group · 2012
  4. 2 generations backK210011 JS Dental Lab Mouth GuardAmpower Dental Laboratories, LLC · 2021
  5. 1 generation backK241369 LIJIA Night GuardLijia, LLC · 2024
  6. This deviceK243516 Remi Custom Night GuardGrindguard, Inc. · 2025
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−5K882303H&M Anti-Snoring DeviceHays & Meade, Inc.1989—
−4K014079DR. Hays Bite GuardInventive Resources, Inc.2002—
−3K121365Thermoformed MouthguardsGlidewell Laboratories-Sleep Devices Group2012—
−2K210011JS Dental Lab Mouth GuardAmpower Dental Laboratories, LLC2021—
−1K241369LIJIA Night GuardLijia, LLC2024—
0 (this device)K243516Remi Custom Night GuardGrindguard, Inc.2025—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199820
200110
200310
200610
FIG. 1 — Lineage of K243516, 1989–2025Source: 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
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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
*K241369LIJIA Night Guard
Summary page 5
…Mouth Guard Product Code: MQC Device Classification: Unclassified Predicate Device: LIJIA Night Guard (K241369) (Primary Predicate) Reference Device: Thermoforming Sheet Materials (K200125) Device Description: The Remi…
Lijia, LLC2024—
†K200125Thermoforming Sheet MaterialsErkodent Erich Kopp GmbH2020—

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 36 years and passes through 6 companies; a new generation was cleared every 8.7 years on median.
  • None of the 11 ancestors has a recall.

How does its category compare?

All MQC devices

MQC Mouthguard, Prescription: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, 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?

The Remi Night Guard is indicated for protection of teeth and restorations against grinding and clenching.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K243516: Remi Custom Night Guard.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K243516

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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