Edentulous Bite Tray with Parabolic Support Structure
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Solution Overview
Problem
The existing process for creating dental prosthetics for edentulous patients is inefficient and costly due to the need for multiple impressions, wax rim models, and adjustments to maintain the proper vertical dimension of occlusion (VDO).
Innovation Solution
An edentulous bite tray with a parabolic support structure, bite stop assembly, and handle is used to take accurate maxillary and mandibular bite impressions, allowing for a single set of impressions that maintain the proper VDO without the need for additional wax rims or baseplates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional impression trays and wax rim models are used to take VDO measurements for edentulous patients, then the patient's natural VDO can be maintained, but the process requires multiple clinical visits and laboratory processes, increasing time and cost
Solution Approach 1:
The patent combines the maxillary and mandibular impression trays into a single integrated bite tray assembly. The upper tray and lower tray are positioned relative to each other with predetermined spacing that maintains the patient's VDO, eliminating the need for separate wax rim model fabrication and multiple adjustment visits. This merging of functions into one device achieves both accurate VDO measurement and reduced clinical visits.
Solution Approach 2:
The bite tray assembly is pre-configured with predetermined vertical spacing between the upper and lower trays that corresponds to the patient's specific VDO measurement. This preliminary setup of the correct vertical dimension before the impression-taking process eliminates the need for subsequent wax rim fabrication and adjustment visits, directly reducing the number of clinical visits required.
2Manufacturing precision
If multiple wax rim models and baseplates are created to adjust and maintain VDO, then the proper vertical dimension can be achieved, but the device complexity and number of components increase
Solution Approach 1:
The patent integrates the functions of multiple separate components (maxillary tray, mandibular tray, wax rims, and baseplates) into a single bite tray assembly. The predetermined vertical spacing between trays inherently maintains VDO without requiring separate wax rim models or baseplates, thereby reducing device complexity while maintaining manufacturing precision.
Solution Approach 2:
The bite tray assembly serves multiple functions simultaneously: it takes impressions of both maxillary and mandibular arches, maintains the correct VDO through predetermined spacing, and provides a stable reference for occlusal relationship recording. This multi-functionality eliminates the need for separate wax rim models and baseplates, reducing overall device complexity.
Data Source
AI summary
A bite tray for an edentulous jaw configured to create bite impressions of the edentulous jaw while maintain a patient's vertical dimension of occlusion. The bite tray comprising a parabolic support structure coupled to a bite stop assembly. The parabolic support structure have maxillary and mandibular openings to allow a prosthodontist access to a visual alignment of the inner jaw while taking impressions.