# K973236: Crest Toothbrush with Microshield

- Pathway: 510(k) (Traditional)
- Applicant: Procter & Gamble Co.
- Decided: Mar 11, 1998 after 195 days
- Product code: EFW (Toothbrush, Manual)
- Device class: 1
- Regulation: 21 CFR 872.6855
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 1 generation back to K950993 (1995). 1 ancestor in all.
2 later devices descend from it; 1 cites it directly.
0 of 4 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K950993: Butler G.U.M. Antibacterial Toothbrush, John O. Butler (1995) Summary page 1.
- (no number) Crest Toothbrushes: named in the summary without a submission number

## Most influential descendants
- K020776: Medoral Hygienic Toothbrush with Dentosan Filaments (2002), 1 descendant of its own
- K022900: Butler Gum Vari-Clean Power Toothbrushes (2002), 0 descendants of its own

## Indications for use
To remove adherent plaque and food debris from the teeth to prevent tooth decay. To prevent the growth of bacterial between brushings to maintain the cleanliness of the toothbrush.

Source page: https://510kreport.com/device/K973236
Methodology: https://510kreport.com/methodology