510(k) · Cleared
ClearedGrind NO More Version 2 and 3
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Ranir, LLC · OBR Mouthguard, Over-The-Counter
Cleared on May 8, 2009 as substantially equivalent to K082301 (Placontrol, Inc., 2008) and 1 other predicate after a 16-day review. Its family tree reaches back 3 generations to 2003. 4 later devices descend from it.
- Decided
- May 8, 2009
- Review
- 16 days
- Class
- Class U
- Product code
- OBR
- Recalls
- None
- Predicates
- 2
Its longest line of descent runs back 3 generations to K022809 (2003). 7 ancestors in all, the oldest K010876 (2001). 4 later devices descend from it, 2 citing it directly.
- Root · 3 generations backK022809 EZ Splint & EZ Splint PMPower Products, Inc.-Splintek · 2003
- 2 generations backK072147 Den Tek Comfort Fit NightguardDen Tek Oral Care, Inc. · 2007
- 1 generation backK082301 Grind NO MorePlacontrol, Inc. · 2008
- This deviceK091175 Grind NO More Version 2 and 3Ranir, LLC · 2009
- Descendant · cites it directly · 2 of its ownK112879 Rest Assured Ready to Wear Nite ProtectorRanir, LLC · 2012
- Descendant · 2 generations on · 1 of its ownK133423 Rest Assured Extra Comfort Nite ProtectorRanir, LLC · 2013
- Descendant · 3 generations on · 0 of its ownK232238 Goyo Mouthpiece SDimedikorea · 2024
- Descendant · cites it directly · 0 of its ownK094020 Grind NO More Generation IIRanir, LLC · 2010
Most influential descendants
Showing 4 of 4 · See all- K112879Rest Assured Ready to Wear Nite ProtectorRanir, LLC · 2012 · cites it directly2descendants
- K133423Rest Assured Extra Comfort Nite ProtectorRanir, LLC · 2013 · 2 generations on1descendant
- K232238Goyo Mouthpiece SDimedikorea · 2024 · 3 generations on0descendants
- K094020Grind NO More Generation IIRanir, LLC · 2010 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −3 | K022809 | EZ Splint & EZ Splint PM | Power Products, Inc.-Splintek | 2003 | — |
| −2 | K072147 | Den Tek Comfort Fit Nightguard | Den Tek Oral Care, Inc. | 2007 | — |
| −1 | K082301 | Grind NO More | Placontrol, Inc. | 2008 | — |
| 0 (this device) | K091175 | Grind NO More Version 2 and 3 | Ranir, LLC | 2009 | — |
| +1 | K112879 | Rest Assured Ready to Wear Nite Protector | Ranir, LLC | 2012 | — |
| +2 | K133423 | Rest Assured Extra Comfort Nite Protector | Ranir, LLC | 2013 | — |
| +3 | K232238 | Goyo Mouthpiece S | Dimedikorea | 2024 | — |
| +1 | K094020 | Grind NO More Generation II | Ranir, LLC | 2010 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2001 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2010 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2024 | 1 | 0 |
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 OBR? 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 OBR device
- #1 K251778 Remi Custom Night Guardscore 15.6 · 9 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 |
|---|---|---|---|
| * | K082301 | Grind NO MoreSummary page 2…ssification Name Mouthiguard, Over-the-Counter Classification Product Code OBR Predicate Devices Placontrol, Inc.'s Grind No More (K082301) DenTek Oral Care, Inc.'s Comfort Fit NightGuard (K072147) Purpose of the Special 510(k) notice. The Grind No Mor… | 2008 |
| * | K072147 | Den Tek Comfort Fit NightguardSummary page 2…tion Product Code OBR Predicate Devices Placontrol, Inc.'s Grind No More (K082301) DenTek Oral Care, Inc.'s Comfort Fit NightGuard (K072147) Purpose of the Special 510(k) notice. The Grind No More Version 2 and Grind No More Version 3 are modifications to… | 2007 |
What descends from it? (4)
2 later devices cite it directly; ranked here by how many devices descend from each in turn.
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 6 years and passes through 4 companies; a new generation was cleared every 1.1 years on median.
- None of the 7 ancestors has a recall.
- Of its descendants, K112879 (Ranir, LLC, 2012) has gone furthest, with 2 descendants of its own.
- 1 other device also cites its predicate K082301.
How does its category compare?
All OBR devicesOBR Mouthguard, Over-The-Counter: FDA decisions, review times, recalls and adverse event reports over 20 years. 2009, this device’s year, is highlighted.
FDA decisions per year · OBR
3in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · OBR
129in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · OBR
No recall names OBR since 2007.
Adverse event reports per year · OBR
13in 2025
MAUDE reports naming product code OBR, 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 | 2 | — | 0 | 1 |
| 2008 | 5 | 55 | 0 | 0 |
| 2009 | 3 | 16 | 0 | 7 |
| 2010 | 2 | — | 0 | 3 |
| 2011 | 1 | — | 0 | 0 |
| 2012 | 4 | 145 | 0 | 4 |
| 2013 | 2 | — | 0 | 8 |
| 2014 | 2 | — | 0 | 776 |
| 2015 | 1 | — | 0 | 31 |
| 2016 | 1 | — | 0 | 16 |
| 2017 | 1 | — | 0 | 24 |
| 2018 | 2 | — | 0 | 23 |
| 2019 | 3 | 266 | 0 | 29 |
| 2020 | 3 | 161 | 0 | 15 |
| 2021 | 2 | — | 0 | 10 |
| 2022 | 2 | — | 0 | 6 |
| 2023 | 1 | — | 0 | 5 |
| 2024 | 2 | — | 0 | 18 |
| 2025 | 3 | 129 | 0 | 13 |
| 2026 | 4 | 103 | 0 | — |
What is it indicated for?
The Grind No More Version 2 and Grind No More Version 3 are indicated for use for protection against bruxism or nighttime teeth grinding. The devices are intended to reduce damage to the teeth and to prevent the noise associated with bruxing or grinding.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K091175 · printed Nov 5, 2026
Cite this page
510(k) Report. “K091175: Grind NO More Version 2 and 3.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K091175
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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