Importance

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Abstract

The disclosure is directed to a novel and improved toothbrush construction which provides not only effective brushing action on the teeth, but also imparts a gentle yet highly effective massaging action to the gums as well as the dental underpinnings. The brushing head assembly of the new device is arranged for either rotary or nonrotary operation and includes a pair of opposed, generally circular flange-forming members, formed of a soft, closed cell foam material, and central, generally lense-shaped portions of a material of substantially less resilience. These flange-forming members are separated by a central impact cushion, somewhat disc-like in shape and formed of soft foam material. The entire assembly is held under axial compression by a pair of opposed cup-like restrainig hubs. When the user exerts a biting or chewing action on the central impact cushion, a unique cooperative action between the lense-shaped sides of the flange-forming members and the cup-like retaining hubs causes an umbrella-like collapse of the flange-forming members. As a result, the working surfaces (i.e., bristles for the teeth, other projections for the gums) are brought to bear on the dental structures.

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First Claim