# K091175: Grind NO More Version 2 and 3

- Pathway: 510(k) (Special)
- Applicant: Ranir, LLC
- Decided: May 8, 2009 after 16 days
- Product code: OBR (Mouthguard, Over-The-Counter)
- Device class: U
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 3 generations back to K022809 (2003). 7 ancestors in all.
4 later devices descend from it; 2 cite it directly.
0 of 12 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K082301: Grind NO More, Placontrol, Inc. (2008) Summary page 2.
- K072147: Den Tek Comfort Fit Nightguard, Den Tek Oral Care, Inc. (2007) Summary page 2.

## Most influential descendants
- K112879: Rest Assured Ready to Wear Nite Protector (2012), 2 descendants of its own
- K133423: Rest Assured Extra Comfort Nite Protector (2013), 1 descendant of its own
- K232238: Goyo Mouthpiece S (2024), 0 descendants of its own
- K094020: Grind NO More Generation II (2010), 0 descendants of its own

## Indications for use
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.

Source page: https://510kreport.com/device/K091175
Methodology: https://510kreport.com/methodology