Partial Dental Prosthesis With Laser-Fused Enamel for Chewing Durability
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Solution Overview
Problem
Existing partial dental prostheses for posterior teeth are labor-intensive to produce and lack the necessary robustness and stability for daily chewing, especially in regions with severe abrasion.
Innovation Solution
The development of partial dental prostheses with a surface formed by a layer of fused-together solid particles, which provides enhanced physical properties and stability, and can be produced more easily and cost-effectively using a composite material with methacrylate as the organic binding agent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If partial dental prostheses are produced individually by hand by the dental technician, then the surface configuration can be made nearly natural, but the production process becomes particularly labor-intensive
Solution Approach 1:
The invention uses a stamp or mold that replicates the natural chewing surface geometry of posterior teeth. The stamp is pressed into a composite material to create an impression that is then used to form the prosthesis surface, copying the natural tooth morphology without requiring manual sculpting by the dental technician.
Solution Approach 2:
The manual mechanical process of hand-sculpting the chewing surface is replaced by a stamping mechanism. The stamp physically imprints the surface geometry onto the composite material through pressing, substituting the dental technician's manual shaping actions with a standardized mechanical stamping process.
2Ease of operation
If conventional composite materials are used for partial dental prostheses, then ease of application is improved, but robustness and stability for daily chewing are insufficient
Solution Approach 1:
The invention uses a composite material consisting of an organic binding agent (methacrylate) combined with inorganic solid particles as filler. This composite structure provides both the ease of application characteristic of organic materials and the robustness and stability of inorganic fillers, enabling the prosthesis to withstand high chewing forces while remaining easy to apply.
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 prostheses exhibit improved stability and durability, capable of withstanding high chewing forces, and can be quickly and permanently applied to correct abrasion-related issues, offering a more efficient and cost-effective solution.
Implementation Method 1
the composite material contains at least one organic binding agent, preferably methacrylate
Implementation Method 2
at least the surface for forming the chewing surface, preferably the entire outwardly facing surface of the partial dental prosthesis, is formed at least in some regions, preferably completely, by a layer that comprises fused-together solid particles
Data Source
AI summary
A method for producing partial dental prosthesis having at least one surface for forming a chewing surface of a posterior tooth is provided. The method includes (i) providing a composite material with at least one organic binding agent and solid particles that consist of glass as filler; and (ii) applying a laser to at least some regions of a surface of the chewing surface such that the at least one organic binding agent is burnt off in laser-treated regions and the solid particles are melted and fused together to form a continuous enamel layer.