Segmented Mouthpiece Brush Heads for Adaptive Full-Arch Cleaning

Solution Overview

Problem

Traditional electric toothbrushes and mouthpiece toothbrushes face challenges in providing effective, efficient, and comfortable dental cleaning, particularly for incisor and molar teeth, due to user technique dependence and fixed mouthpiece sizes that do not adapt to varying mouth shapes and sizes.

Innovation Solution

A dental cleaning device with a handle, mouthpiece, and movable brush heads, including a front module for incisors and a couple of back modules for molars, driven by a motor to perform synchronized rotational and translational motions, ensuring comprehensive tooth cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a mouthpiece toothbrush is used to clean all teeth simultaneously, then cleaning efficiency is improved, but adaptability to different mouth shapes and sizes deteriorates

Engineering Contradiction:

Improvecleaning efficiencyVSAvoidadaptability to different mouth shapes

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The brush head is divided into multiple independent modules: a front module for incisors and canines, and at least one back module for premolars and molars. Each module can be independently positioned and oriented to adapt to different dental arch configurations, allowing the device to maintain high cleaning efficiency across diverse mouth shapes and sizes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mouthpiece incorporates movable elements that allow dynamic adjustment of the brush modules during operation. The front module and back module(s) can move relative to each other and to the mouthpiece body, enabling adaptation to varying dental geometries while maintaining simultaneous contact with multiple tooth surfaces.

Inventive Principle:

Principle #15Dynamics

2Reliability

If the mouthpiece is designed to cover all teeth surfaces, then cleaning comprehensiveness is improved, but comfort and user adaptability deteriorate

Engineering Contradiction:

Improvecleaning comprehensivenessVSAvoiduser comfort

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The brush head is divided into multiple independent modules: a front module for incisors and canines, and at least one back module for premolars and molars. Each module can be independently positioned and oriented to adapt to different dental arch configurations, allowing the device to maintain high cleaning efficiency across diverse mouth shapes and sizes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Each brush module is equipped with bristles specifically configured for its designated tooth region. The front module has bristle arrangement optimized for anterior teeth, while back modules have bristles suited for posterior teeth, ensuring locally optimized cleaning performance that enhances overall comprehensiveness without compromising comfort.

Inventive Principle:

Principle #3Local quality

3Ease of manufacture

If fixed mouthpiece size is used, then manufacturing simplicity is improved, but adaptability to varying mouth sizes deteriorates

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidadaptability to varying mouth sizes

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The brush head is divided into multiple independent modules: a front module for incisors and canines, and at least one back module for premolars and molars. Each module can be independently positioned and oriented to adapt to different dental arch configurations, allowing the device to maintain high cleaning efficiency across diverse mouth shapes and sizes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mouthpiece design incorporates universal adaptation mechanisms that allow a single device configuration to serve multiple mouth sizes and shapes. The movable modules and adjustable positioning systems enable the same mouthpiece to effectively clean teeth across a wide range of dental geometries, eliminating the need for multiple fixed-size variants.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20260041535A1Dental cleaning device

Publication Date: 2026.02.12 CLEAN OS SRL

AI summary

Dental cleaning device comprising a handle, a mouthpiece connected or connectable to said handle, a set of brush heads carried by the mouthpiece and configured for cleaning, during a use condition of said dental cleaning device, the user's teeth. The set of brush heads includes a front module configured to clean at least the user's incisor teeth, said front module being movable by a first motion, said first motion including a translation motion or a rotational motion around a front module axis external to said front module or a roto-translation motion. The set of brush heads also includes at least a couple of back modules configured to clean at least the user's molar teeth, each of said back modules being movable by a respective second motion including a rotational motion around a respective back module rotation axis passing through the respective back module.