06219874 is referenced by 82 patents and cites 132 patents.

A toothbrush having a handle and a resiliently flexible bristle-bearing head. The head has a pair of opposing faces with the bristles mounted on one face. Each opposing face has a groove, the groove on each face being substantially parallel to the groove on the opposing face. The pair of substantially parallel grooves form a flexible hinge within the head, allowing the toothbrush head to flexibly conform from a concave profile to a convex profile to suit the labial surface of the teeth or to avoid damage to the gums.

Title
Resiliently flexible bristle bearing head toothbrush
Application Number
8/765572
Publication Number
6219874 (B1)
Application Date
January 13, 1997
Publication Date
April 24, 2001
Inventor
Kristie Jane Morgan
Twickenham
US
Maria van Gelder
Twickenham
US
Agent
Steven W Miller
US
Vanessa M Nichols
US
James C Vago
US
Assignee
The Procter & Gamble Co
OH, US
IPC
A46B 7/06
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