Elastic Clamping Unit for Prosthetic Teeth Positioning
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Solution Overview
Problem
Current methods for positioning and processing prosthetic teeth in denture base plates are inefficient, requiring extensive manual skill, leading to precision issues and deformation, and often necessitate grinding, which complicates the production and reusability of prosthetic teeth.
Innovation Solution
A device with a negative form and clamping unit that uses elastic holding means to securely affix prosthetic teeth in a defined position and orientation, allowing for precise processing without deformation, and enabling reusability of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If prefabricated prosthetic teeth are embedded in a carrier layer using wax or other masses, then a fixed and precise connection is achieved, but the production process becomes complex and requires great manual skill
Solution Approach 1:
The device is divided into a negative form (for positioning) and a separate clamping unit (for securing), allowing independent optimization of each component's function and simplifying the overall production process
Solution Approach 2:
The elastic holding means automatically exert clamping force onto the prosthetic teeth upon insertion into the negative form, eliminating the need for manual adjustment or additional securing steps
2Reliability
If the carrier layer is used to hold prosthetic teeth, then positioning is achieved, but the carrier layer must harden before processing and may deform causing adjacent teeth to be milled imprecisely
Solution Approach 1:
The elastic holding means are designed with curved or flexible geometries that allow them to deform elastically to accommodate the prosthetic teeth, providing stable positioning without rigid constraints that could cause deformation
Solution Approach 2:
The elastic properties of the holding means provide dynamic adaptation to positioning requirements, maintaining stable contact with the prosthetic teeth throughout the processing operation without deformation
3Adaptability or versatility
If prosthetic teeth are manually arranged and ground individually, then adaptation to mouth situation is achieved, but processing time increases and reusability is reduced
Solution Approach 1:
The negative form is pre-configured with recesses that precisely accommodate prosthetic teeth in their final positions, allowing multiple teeth to be positioned and secured simultaneously without individual manual arrangement
Solution Approach 2:
The device with its standardized negative form and clamping unit can accommodate multiple different prosthetic teeth configurations, enabling the same device to be reused for various customization scenarios
4Measurement precision
If a precisely fitted mold is prefabricated in a denture base plate, then positioning accuracy is improved, but space availability is reduced requiring grinding of prosthetic teeth
Solution Approach 1:
The negative form acts as an intermediary positioning device that precisely locates prosthetic teeth before final insertion into the denture base plate, eliminating the need for pre-grinding to accommodate space constraints
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
Facilitates simple, cost-effective, and precise processing of prosthetic teeth with minimal post-processing steps, ensuring accurate positioning and alignment, and allowing for automated processing without mechanical impairment.
Implementation Method 1
the at least one clamping unit has at least one elastic holding means, wherein with the at least one elastic holding means, an elastic force is exercisable or is exerted from at least two different directions onto the prosthetic teeth inserted into the negative form
Data Source
AI summary
The invention relates to a device for holding prosthetic teeth (2), the device comprising a negative form (1) and at least one clamping unit (6), wherein in the negative form (1), recesses (4) for holding coronal sides (12) of the prosthetic teeth (2) are provided, wherein the recesses (4) are formed in such a manner that the prosthetic teeth (2) can be inserted in an unequivocally position and orientation into the recesses (4), wherein the at least one clamping unit (6) is affixable or is affixed to the negative form (1) with a connecting means (10), and wherein the at least one clamping unit (6) has at least one elastic holding means (8), wherein with the at least one elastic holding means (8), an elastic force is exercisable or is exerted from at least two different directions onto the prosthetic teeth (2) inserted into the negative form (1), while the at least one clamping unit (6) is affixed to the negative form (1), so that the prosthetic teeth (2) are affixed in the device. The invention also relates to a method for affixing, and preferably processing, prosthetic teeth (2) and a set for implementing such a method, having several prefabricated prosthetic teeth (2) and at least one such device.