Orthodontic Bracket Cover with Snap-Fit Claws
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Solution Overview
Problem
Orthodontic patients find traditional dental braces unattractive and are unable to easily remove or interchange cover devices over their brackets without dental supervision, limiting their ability to maintain oral hygiene and customize their appliance's appearance.
Innovation Solution
A cover device with a snap-fit attachment mechanism using plastic composition and claws that can be easily attached and removed by patients, featuring a bowed main plate and claws for secure attachment and a removable tool for assistance, allowing for lateral sliding or prying removal without requiring dental supervision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If elastomeric ligators with membranes are used to cover brackets, then the appearance of orthodontic appliances is enhanced, but the device cannot be easily removed or interchanged by patients without dental supervision
Solution Approach 1:
The cover device is divided into a main plate and separate claws that can independently flex and engage. This segmentation allows the cover to be attached and removed as a single unit while the claws provide individual engagement points on the bracket, enabling patient-removable design without compromising appearance enhancement
Solution Approach 2:
The claws are designed to be flexible rather than rigid, allowing them to dynamically adjust during attachment and removal. The claws can flex outward during removal and snap back into engagement during attachment, enabling easy patient operation while maintaining secure attachment for appearance purposes
2Strength
If elastomeric ligators are used to secure arch wire to bracket, then the arch wire is firmly held, but the device requires dental supervision for attachment and removal
Solution Approach 1:
The cover device is designed to be self-attaching and self-removing by the patient without dental supervision. The flexible claws automatically engage with the bracket when pressure is applied to the front face, and can be easily pried off using a simple tool, eliminating the need for professional assistance while maintaining secure attachment
3Stability of the object's composition
If the main plate is rigid for secure attachment, then the cover device holds firmly on the bracket, but the claws cannot flex to engage the undercut
Solution Approach 1:
The cover device is segmented into a rigid main plate and flexible claws. The main plate provides structural stability and maintains its shape for secure attachment, while the claws are made flexible to adapt to the bracket's undercut geometry. This segmentation allows both rigidity and flexibility to coexist in different parts of the same device
Solution Approach 2:
Different parts of the cover device have different mechanical properties: the main plate is rigid for stability, while the claws are flexible for adaptation. This local differentiation of material properties allows the device to simultaneously achieve secure attachment and easy engagement with the bracket's undercut
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
Enables patients to securely attach and detach the cover device over orthodontic brackets, enhancing appearance and hygiene by allowing easy removal and interchange, reducing the need for dental assistance and promoting personalized customization.
Implementation Method 1
The main plate is bowed outwardly from top to bottom so that the front face is convex and the rear side is concave. The bowed shape of the main plate, when in a relaxed state, allows the claws to flex away from one another and snap over the bracket upon application of inward pressure on the front face
Implementation Method 2
with the claws pressed against the bracket. This allows for snap-fit attachment of the cover device over the bracket with the distal ends of the top and bottom claws positioned in frictional engagement with an undercut on the back side of the bracket to discourage movement of the cover device relative to the bracket once attached thereto
Data Source
AI summary
A cover device formed of a plastic or similar composition is structured for removable attachment over a bracket of an orthodontic appliance and includes a main plate with an outer front face, and top and bottom claws integrally formed with the main plate, curling behind the main plate, and each terminating at distal ends in spaced, opposing relation to each other behind the main plate. The main plate is bowed outwardly from top to bottom to allow the claws to flex away from each other and snap over the bracket upon application of inward pressure on the front face while the claws are pressed against the bracket, to thereby attach the cover to the bracket, with the bracket concealed from view behind the cover device. The front face may include an ornamental design. In another embodiment, the cover device includes a bottom tab for cooperating engagement with a removal tool.