510(k) · Cleared
ClearedEndSnorZ Sleep Appliance
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Prismatik Dentalcraft, Inc. · LRK Device, Anti-Snoring
Cleared on Oct 26, 2021 as substantially equivalent to K183270 (Prismatik Dentalcraft, Inc., 2019) after a 197-day review. Its family tree reaches back 3 generations to 2007. 1 later device descends from it.
- Decided
- Oct 26, 2021
- Review
- 197 days
- Class
- Class II
- Product code
- LRK
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 3 generations to K070327 (2007). 1 later device descends from it, 1 citing it directly.
- Root · 3 generations backK070327 Removable Arylic Herbst, Allesee Snore Appliance (Asa), and Enoch…Sybron Dental Specialties, Inc. · 2007
- 2 generations backK083209 Acrylic Herbst Splint ApplianceSpecialty Appliance Works, Inc. · 2009
- 1 generation backK183270 Silent Nite slPrismatik Dentalcraft, Inc. · 2019 · Recalled
- This deviceK211069 EndSnorZ Sleep AppliancePrismatik Dentalcraft, Inc. · 2021
- Descendant · cites it directly · 0 of its ownK240427 airVata™Gelb Practice Solutions, Inc. · 2024
Most influential descendants
Showing 1 of 1 · See all- K240427airVata™Gelb Practice Solutions, Inc. · 2024 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −3 | K070327 | Removable Arylic Herbst, Allesee Snore Appliance (Asa), and Enoch Snorinator | Sybron Dental Specialties, Inc. | 2007 | — |
| −2 | K083209 | Acrylic Herbst Splint Appliance | Specialty Appliance Works, Inc. | 2009 | — |
| −1 | K183270 | Silent Nite sl | Prismatik Dentalcraft, Inc. | 2019 | 1 |
| 0 (this device) | K211069 | EndSnorZ Sleep Appliance | Prismatik Dentalcraft, Inc. | 2021 | — |
| +1 | K240427 | airVata™ | Gelb Practice Solutions, Inc. | 2024 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 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 LRK? 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 LRK device
- #1 K252531 Myosa (S1H, S1, S2, S3, S1M, S2M); Myosa for…score 16.3 · 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? (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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K183270 | Silent Nite slSummary page 4…for obstructive sleep apnea and Number 21 CFR 872.5570 Product Code LRK Regulatory Class II Primary Predicate K183270, Silent Nite sl, Prismatik Dentalcraft, Inc. Device: Reference Devices: #1: K183598, KeyPrint KeySplint Soft, Keyst… | 2019 |
| † | K183598 | KeyPrint KeySplint Soft | 2019 |
| † | K203712 | The Slide | 2021 |
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K240427 | airVata™ | 2024 | 0 |
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 14 years and passes through 3 companies; a new generation was cleared every 2.3 years on median.
- 1 of the 3 ancestors has a recall of any class.
- Of its descendants, K240427 (Gelb Practice Solutions, Inc., 2024) has gone furthest, with 0 descendants of its own.
- 1 other device also cites its predicate K183270.
How does its category compare?
All LRK devicesLRK Device, Anti-Snoring: FDA decisions, review times, recalls and adverse event reports over 20 years. 2021, this device’s year, is highlighted.
FDA decisions per year · LRK
14in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · LRK
107in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · LRK
1in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · LRK
653in 2025
MAUDE reports naming product code LRK, 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 | 0 |
| 2008 | 3 | 109 | 0 | 1 |
| 2009 | 3 | 88 | 2 | 11 |
| 2010 | 8 | 195 | 0 | 7 |
| 2011 | 10 | 134 | 0 | 69 |
| 2012 | 10 | 142 | 0 | 445 |
| 2013 | 9 | 233 | 0 | 72 |
| 2014 | 11 | 219 | 0 | 49 |
| 2015 | 6 | 117 | 0 | 28 |
| 2016 | 10 | 157 | 0 | 18 |
| 2017 | 7 | 170 | 0 | 32 |
| 2018 | 10 | 200 | 0 | 61 |
| 2019 | 13 | 150 | 0 | 56 |
| 2020 | 5 | 80 | 0 | 24 |
| 2021 | 10 | 126 | 0 | 49 |
| 2022 | 11 | 154 | 0 | 40 |
| 2023 | 5 | 156 | 0 | 50 |
| 2024 | 6 | 254 | 0 | 185 |
| 2025 | 14 | 107 | 1 | 653 |
| 2026 | 10 | 63 | 1 | — |
What is it indicated for?
EndSnorZ™ Sleep Appliance is indicated to reduce snoring and mild to moderate obstructive sleep apnea in patients 18 years of age or older. EndSnorZ™ Sleep Appliance is worn while sleeping to support the lower jaw in a forward position prescribed by the dentist. The appliance is removable by the patient.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K211069 · printed Nov 3, 2026
Cite this page
510(k) Report. “K211069: EndSnorZ Sleep Appliance.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 3, 2026. https://510kreport.com/device/K211069
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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