Gum massaging oral brush

US20050086753A1Inactive Publication Date: 2005-04-28GILLETTE CANADA
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
Publication Date
2005-04-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

An oral brush is provided that includes an elongated body, a head portion extending from the body, and a plurality of bristles, formed of particular thermoplastic elastomers, extending from the body. In various embodiments, the thermoplastic elastomer has a Shore A hardness of at least 30; the thermoplastic elastomer is selected from the group consisting of polyetheramides, polyesters, styrene-ethylene-butylene-styrene block copolymers, polyurethanes, polyolefin elastomers, and mixtures thereof; and the thermoplastic elastomer has a flexural modulus of at least 5 MPa.
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Description

BACKGROUND OF THE INVENTION

[0001] The invention relates to oral brushes and bristles for use in oral brushes.

[0002] Most humans suffer from tooth decay and / or gingivitis caused by bacteria in the mouth. As a result, decreasing the amount of plaque in the mouth has long been the target of persons working in the health care field. A common way of minimizing the plaque in the mouth is to brush the teeth regularly.

[0003] However, the benefits of frequent brushing can be accompanied in some instances by deleterious side effects such as irritation, abrasion and even recession of the gums. These side effects may, in part, result from excessive stiffness and / or sharpness of the toothbrush bristles.

[0004] Another common way of improving oral health is by massaging the gums to stimulate the gingival tissue. Conventional toothbrushes tend to have limited effectiveness for gum-massaging, and thus often a separate gum-massaging procedure, using a gum-massaging tool, is required to ensure goo...

Examples

Embodiment Construction

[0024] Referring to FIG. 1, a toothbrush 10 includes a plastic body having a handle 12 and a head 14 attached to a bristle portion 16.

[0025] The body of the toothbrush is formed by conventional methods well-known in the art. The handle is shaped to be grasped by a hand, but alternatively can be shaped to fit into an electric toothbrush. The configuration of the head can vary and may be rectangular, oval, diamond-shaped, or any other shape, with bristles which are trimmed flat, serrated, v-shaped, convex curved, or any other desired topography, as is well known in the art. The shape and size of handle 12 and head 14 can vary and the axes of the handle and head may be on the same or a different plane. It may be desired to provide a larger head than is conventional, in order to provide extra room for the thermoplastic elastomer bristles, while still retaining the standard number of non-elastomeric bristles.

[0026] Brush portion 16 includes a number of non-elastomeric bristles 18 and a...