510(k) · Cleared

Cleared

Endsnor

K072731510(k) AbbreviatedCleared Jun 12, 2008260-day reviewClass II21 CFR 872.5570

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

Dockstader Orthodontic Lab, Inc. · LRK Device, Anti-Snoring

Cleared on Jun 12, 2008 as substantially equivalent to K955503 (Jonathan A. Parker, D.D.S., 1996) after a 260-day review. Its family tree reaches back 1 generation to 1996. 1 later device descends from it.

Decided: Jun 12, 2008
Review: 260 days
Class: Class II
Product code: LRK
Recalls: None
Predicates: 1

Its longest line of descent runs back 1 generation to K955503 (1996). 1 later device descends from it, 1 citing it directly.

By dateBy generation

Root · 1 generation backK955503 Adjustable PM PositionerJonathan A. Parker, D.D.S. · 1996
This deviceK072731 EndsnorDockstader Orthodontic Lab, Inc. · 2008
Descendant · cites it directly · 0 of its ownK090911 Ist Snoring ApplianceDental Crafters · 2009

Most influential descendants

Showing 1 of 1 · See all

K090911Ist Snoring ApplianceDental Crafters · 2009 · cites it directly0descendants

View FIG. 1 as a table

Line of descent and top descendants

Generation	Number	Device	Applicant	Decided	Recalls
−1	K955503	Adjustable PM Positioner	Jonathan A. Parker, D.D.S.	1996	—
0 (this device)	K072731	Endsnor	Dockstader Orthodontic Lab, Inc.	2008	—
+1	K090911	Ist Snoring Appliance	Dental Crafters	2009	—

Descendants by year cleared

Year cleared	Devices	With a Class I recall
2009	1	0

FIG. 1 — Lineage of K072731, 1996–2009Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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

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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.

Type	Number	Device	Applicant	Decided	Recalls
*	K955503	Adjustable PM Positioner Summary page 2 …510(k) Summary Identification of Legally Marketed Device, (predicate) for Substantial Equivalence: Name: Adjustable PM Positioner K Number: K955503 Date Cleared: 02/08/1996 Technological Characteristics Summary: Similarities between both devices are the following: · Indica…	Jonathan A. Parker, D.D.S.	1996	—

Also cleared against K955503: 3 other devices →

What descends from it? (1)

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

Number	Device	Applicant	Decided	Descendants
K090911	Ist Snoring Appliance	Dental Crafters	2009	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?

Its one ancestor has no recall.
Of its descendants, K090911 (Dental Crafters, 2009) has gone furthest, with 0 descendants of its own.
3 other devices also cite its predicate K955503.

How does its category compare?

All LRK devices

LRK Device, Anti-Snoring: FDA decisions, review times, recalls and adverse event reports over 20 years. 2008, this device’s year, is highlighted.

FDA decisions per year · LRK

14in 2025

2007high 14 (2025) · low 1 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · LRK

107in 2025

2007high 254 (2024) · low 80 (2020)2026

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

Recalls per year · LRK

1in 2025

2007high 2 (2009) · low 0 (2007)2026

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

Adverse event reports per year · LRK

653in 2025

2007high 653 (2025) · low 0 (2007)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?

The EndSnor TM appliance, a dentist prescribed mandibular repositioning (MRP) device, is worn during sleep and is indicated for persons 18 years or older, who wish to reduce the incidence of snoring and/or mild to moderate obstructive sleep apnea. Before a dentist prescribes an EndSnorT M appliance for treatment, it is recommended that the patient receive a medical examination including a sleep study diagnosis, and a dental examination including cephalometric and tomography analysis to determine the need for an EndSnorTM appliance.

Indications for use as stated in the FDA summary.

https://510kreport.com/device/K072731 · printed Nov 6, 2026

Cite this page

510(k) Report. “K072731: Endsnor.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K072731

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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