Integrated Bite Interference Elements for Aligner Jaw Spacing
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Solution Overview
Problem
Existing orthodontic appliances with bite turbos require attachment and removal processes, challenging proper fitting and causing discomfort, and integrated bite modification structures are difficult to design.
Innovation Solution
Dental appliances with integrated bite interference elements, such as disc-shaped features on the occlusal surfaces, are thermoformed onto polymeric shells to prevent full closure of the bite and maintain jaw spacing according to treatment plans, using polymeric materials like PET, PETG, TPU, and PVC.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional bite turbos are attached to teeth, then jaw spacing can be maintained, but the attachment and removal processes cause discomfort and fitting challenges
Solution Approach 1:
The patent merges the bite turbo function directly into the aligner structure by integrating bite interference elements into the occlusal surface of the aligner. This eliminates the need for separate attachment and removal processes, as the bite interference elements are permanently integrated into the aligner that patients already wear for orthodontic treatment.
Solution Approach 2:
The aligner serves as an intermediary carrier that delivers the bite interference function without requiring direct attachment to teeth. The bite interference elements are embedded in the aligner material, allowing the aligner itself to mediate the jaw spacing function while maintaining patient comfort and ease of use.
2Ease of operation
If bite interference elements are integrated into the aligner, then fitting is improved and discomfort minimized, but the design process becomes more complex
Solution Approach 1:
The patent applies preliminary action by pre-defining standardized bite interference element geometries (such as disc-shaped features with specific dimensions) that can be automatically positioned on occlusal surfaces. This preliminary design framework simplifies the overall design process despite the added integration complexity.
Solution Approach 2:
The patent manages design complexity by standardizing key parameters of the bite interference elements, such as disc diameter (3.5-4.5 mm), width (0.3-0.7 mm), and spacing (1.0-3.0 mm). These parameter specifications provide a systematic approach to design while maintaining flexibility for different patient needs.
3Reliability
If bite interference elements are made larger, then jaw spacing effectiveness increases, but structural integrity and resistance to deformation decrease
Solution Approach 1:
The patent optimizes the balance between jaw spacing effectiveness and structural strength by precisely controlling the dimensions of the bite interference elements. The disc diameter is limited to 3.5-4.5 mm and width to 0.3-0.7 mm, ensuring sufficient jaw spacing while maintaining adequate structural integrity to resist deformation under bite forces.
Solution Approach 2:
The patent applies local quality by concentrating the bite interference function in specific localized disc-shaped features rather than distributing it across large areas. This localized approach maintains structural integrity in non-critical regions while providing effective jaw spacing at the bite interference locations.
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 integrated bite interference elements provide effective jaw spacing and structural integrity, resisting deformation under bite force, enhancing treatment efficacy while minimizing discomfort and improving fit.
Implementation Method 1
thermoforming a thermoplastic material over the physical model of the patient's dentition to form a dental appliance
Data Source
AI summary
The present disclosure discusses techniques for fabricating bite interference elements within polymeric dental appliances. The techniques disclose at least one polymeric shell that includes a number of cavities shaped to fit over a patient's teeth. The polymeric shell includes an occlusal appliance surface shaped to fit over an occlusal tooth surface of the patient. One or more bite interference elements are formed within the occlusal appliance surface, and each bite interference element includes a partially disc-shaped feature extending radially away from the occlusal tooth surface when worn by the patient.