Personalized Sonic Toothbrush with Custom Arch Fit
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Solution Overview
Problem
Conventional toothbrushes require correct brushing technique and angle maintenance, which many users, especially children and the elderly, find difficult, leading to suboptimal dental cleaning due to varying bristle stiffness and arrangement.
Innovation Solution
A personalized toothbrush device with a cleaner body shaped to fit each user's dental arch, featuring a powered mechanism for sonic or ultrasonic vibration, and adjustable bristle density and stiffness to ensure effective cleaning without physical contact, addressing the challenges of technique and accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional toothbrushes with varying bristle stiffness are used, then cleaning effectiveness may be improved for some users, but usability deteriorates for users with limited dexterity such as children and the elderly
Solution Approach 1:
The cleaning device performs the cleaning action automatically through powered vibration mechanisms, eliminating the need for users to manually manipulate the brush head and maintain proper brushing angles. The device serves itself by generating the necessary cleaning motion without user intervention, making it accessible to children and the elderly who struggle with dexterity requirements
Solution Approach 2:
The patent replaces manual mechanical brushing with an electrically powered vibration system. The powered driving mechanism generates high-frequency vibrations that perform the cleaning function, substituting the need for manual back-and-forth brushing motions and angle maintenance, thereby improving ease of operation while maintaining cleaning effectiveness
2Manufacturing precision
If manual brushing technique is required to maintain correct brush head angle, then cleaning precision may be improved, but operation complexity increases for users
Solution Approach 1:
The device automatically maintains the optimal cleaning angle through its powered vibration mechanism and head design. The brush head is engineered to self-position at the correct angle relative to the tooth surface during vibration, eliminating the need for users to consciously control and maintain the angle, thus reducing operation complexity while preserving cleaning precision
Solution Approach 2:
The patent employs dynamic vibration at high frequencies to achieve effective cleaning. The powered mechanism creates rapid oscillating motions that adapt to the tooth surface geometry, automatically maintaining optimal contact angles through the dynamic nature of the vibration rather than requiring static user control, thereby simplifying operation while preserving precision
3Reliability
If conventional toothbrushes require consistent technique application, then cleaning quality may be improved, but time consumption increases due to repeated corrections
Solution Approach 1:
The powered cleaning device automatically performs the cleaning function without requiring user technique correction. The vibration mechanism consistently applies cleaning force across all tooth surfaces through programmed motion patterns, eliminating the time users would spend correcting their brushing technique and ensuring reliable cleaning quality
Solution Approach 2:
The device provides continuous vibration-based cleaning action throughout the brushing period, maintaining consistent cleaning effectiveness across all tooth surfaces without interruption for technique correction. The powered mechanism ensures uninterrupted useful action, cleaning all areas systematically while the user simply holds the device, thereby reducing time loss and ensuring reliable cleaning quality
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device provides quicker and more consistent dental cleaning, effectively reaching all tooth surfaces and preventing gum and enamel damage, while accommodating unique dental conditions and improving accessibility for users with limited dexterity.
Implementation Method 1
a powered driving mechanism that is mechanically coupled to the cleaner body and that is configured for imparting driven movement to the cleaner body during reception of the group of teeth in the cleaning cavity, to cause cleaning of the teeth
Data Source
AI summary
A toothbrush device comprises a cleaner body that defines a cleaning cavity configured for receiving a set of teeth of a user. A powered driving mechanism is coupled to the cleaner body and is configured to impart driven movement to the cleaner body, thereby to effect cleaning of a set of teeth engaged with the cleaning cavity. The cleaner body can be uniquely customized for a specific user, the cleaning cavity being substantially complementary in shape only to the corresponding set of teeth of the specific user. Cleaning elements can be arranged non-uniformly in the cleaning cavity to define focus areas corresponding to identified dental problem areas unique to the specific user.