# US 8,464,388 B2 · Multi-function brush for overdenture

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- Number: US 8,464,388 B2
- Document ID: US8464388B2
- Status: Granted
- Kind: B2
- Application number: 13/050,208
- Filed: 2011-03-17
- Published: 2012-06-14
- Granted: 2013-06-18
- Earliest claimed: 2010-12-13
- Applicants: Ming Sheh Chen
- Inventors: Ming Sheh Chen
- Web page: https://patentgrep.com/patent/US8464388B2

## CPC

- A46B 9/04: {Arranged like in or} for toothbrushes
- A46B 5/0016: {Brushes with heads on opposite sides or ends of a handle not intended for simultaneous use}
- A46B 2200/1073: Denture toothbrush, i.e. used for dentures specifically
- A46B: BRUSHES (handles not integral with brushware B25G)

## Abstract

A multi-function brush for an overdenture includes a brush handle having a head end and a tail end. The head end has a first surface and a second surface opposite to the first surface. The first group of brushes is provided on the first surface of the head end. The second group of brushes is provided on the second surface of the head end. The third group of brushes is provided on the tail end. With these three groups of brushes having different locations, specifications and indications, an overdenture user can clean the tissue surface and the denture surface of the overdenture, the male part of the dental attachments provided on the tissue surface, and the female part of the dental attachments provided on alveolar ridge or roots by this single brush. Thus, the present invention really has convenience and practicability, and the money for buying different toothbrush and denture brush is saved.

## Claims

### Claim 1

A multi-function brush for an overdenture, wherein a tissue surface of the overdenture has a trough for matching a residual alveolar ridge in an oral cavity, the trough being provided therein with a plurality of male dental attachments, the ridge being provided with a plurality of female dental attachments to be engaged with the male dental attachments, the multi-function brush including:
a brush handle having a head end and a tail end counter to the head end, the head end having a first surface and a second surface opposite to the first surface, the brush handle being molded from plastic material, an area of the head end being larger than an area of the tail end, a middle section of the brush handle being formed into a grip portion, a surface of the grip portion being provided with a plurality of first slide-proof pads and second slide-proof pads, the first slide-proof pads being provided on upper and lower surfaces of the grip portion and having a larger area than an area of the second slide-proof pads provided on side surfaces of the grip portion;
a first group of brushes provided on the first surface of the head end and being arranged for cleaning a denture surface of the overdenture;
a second group of brushes provided on the second surface of the head end and being arranged for cleaning the tissue surface of the overdenture and the male dental attachments; and
a third group of brushes provided on the tail end and being arranged for cleaning a connective tissue adjacent to the ridge and the female dental attachments, the third group of brushes being softer than the first group of brushes and the second group of brushes.

### Claim 2 (depends on 1)

The multi-function brush for an overdenture according to claim 1, wherein the second group of brushes extends in an angle from the second surface of the head end away from the brush handle.

### Claim 3 (depends on 2)

The multi-function brush for an overdenture according to claim 2, wherein the third group of brushes is provided on the tail end on the same side of the brush handle as the first group of brushes.

### Claim 4 (depends on 3)

The multi-function brush for an overdenture according to claim 3, wherein the third group of brushes is formed into a conical shape with its brushes converging into a point for easy insertion into the female dental attachments.

### Claim 5 (depends on 1)

The multi-function brush for an overdenture according to claim 1, wherein the first group of brushes has three rows of brushes, a central row of brushes is taller than the rest two rows of brushes, the rest two rows of brushes are arranged aside the central row of brushes in a downward and inclined manner, the three rows of brushes are arranged in a curve to match the surface configuration of the overdenture.