Dental Provisional Superstructures with Controlled Stiffness
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Solution Overview
Problem
Conventional temporary superstructures for dental implants during progressive bone loading methods face challenges such as inadequate adhesion to commercial abutments, excessive stiffness, and inability to control force distribution, leading to potential implant overload and failure.
Innovation Solution
A dental mixture or multi-component system comprising 20.0 to 99.9% polymerizable (meth)acrylates, 0.1 to 10.0% catalysts or initiators, 0.0 to 60.0% inorganic or organic fillers, and 0.0 to 5.0% stabilizers, which can be hardened to achieve a maximum pressure modulus of 420 MPa or less, allowing for the production of provisional superstructures that adhere well to metallic abutments and can be used in progressive bone loading to accelerate osseointegration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional temporary superstructures are used for progressive bone loading, then the treatment can be provided, but the superstructures have inadequate adhesion to commercial abutments
Solution Approach 1:
The patent modifies the material parameters of the temporary superstructure by using polymerizable (meth)acrylates with controlled molecular weight and functionality, along with specific fillers and coupling agents, to achieve optimal adhesion strength to commercial abutments while maintaining the required mechanical properties for progressive bone loading
Solution Approach 2:
The patent creates a composite material system combining polymerizable (meth)acrylate matrix with inorganic or organic fillers and coupling agents, where the coupling agent specifically enhances the interfacial bonding between the polymer matrix and the metallic abutment surface, thereby improving adhesion without complicating the manufacturing process
2Strength
If conventional temporary superstructures are used, then they can be installed, but they have excessive stiffness causing implant overload
Solution Approach 1:
The patent controls the stiffness of the temporary superstructure by adjusting the molecular weight, functionality, and composition of the polymerizable (meth)acrylate monomers, as well as the type and amount of fillers, to achieve an optimal balance between structural strength and flexibility that prevents implant overload during progressive bone loading
Solution Approach 2:
The patent implements local quality by creating a gradient or optimized distribution of fillers and coupling agents within the polymer matrix, where the material properties are tailored in specific regions to provide both adequate strength for structural integrity and controlled flexibility for force distribution, preventing stress concentration on the implant
3Reliability
If conventional materials are used for temporary superstructures, then they can be produced, but they cannot control force distribution effectively
Solution Approach 1:
The patent develops a composite material system where the interaction between the polymerizable (meth)acrylate matrix, fillers, and coupling agents creates controlled force distribution pathways, allowing the temporary superstructure to effectively manage and distribute occlusal forces during progressive bone loading without requiring complex structural designs
4Reliability
If conventional temporary superstructure materials are used, then they can be applied, but they do not accelerate osseointegration
Solution Approach 1:
The patent optimizes the material parameters of the temporary superstructure, including the molecular weight and functionality of polymerizable (meth)acrylates, the surface properties of fillers, and the coupling efficiency with abutments, to create a material system that promotes favorable stress distribution and biological response, thereby accelerating osseointegration while maintaining manufacturing simplicity
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 solution provides provisional superstructures with excellent adhesion to commercial abutments, controlled force distribution, and adjustable hardness, enabling successful progressive bone loading and accelerated osseointegration of dental implants without the limitations of traditional methods.
Implementation Method 1
consisting of (a) from 20.0 to 99.9% by weight of one, two or more polymerizable (meth)acrylates, (b) from 0.1 to 10.0% by weight of one or more catalysts and/or initiators for the polymerization, for use in a therapeutic treatment to accelerate the osseointegration of dental implants, preferably according to the principle of progressive bone loading
Data Source
AI summary
Dental material, dental mixture or dental multicomponent system for producing material or core of temporary supraconstruction for dental implant comprises at least one polymerizable (meth)acrylate and optionally further ingredients, where the dental material, the dental mixture or the multicomponent system are curable to a product, and the maximum compressive modulus of = 420 MPa is achieved by polymerization curing for use in a therapeutic treatment to accelerate the osseointegration of dental implants, preferably by the method of progressive bone loading. Independent claims are also included for: (1) the temporary supraconstruction or the core for the temporary supraconstruction, where the material of the supraconstruction or the material of the core has a compressive modulus of less than 420 MPa; (2) a temporary denture comprising the temporary supraconstruction, the dental implant, a metallic abutment that is arranged between temporary supraconstruction and dental implant and ensures connection, and optionally an adhesion agent that is arranged between temporary supraconstruction and the abutment; (3) a kit for producing many temporary supraconstructions for the dental implant or many cores for temporary supraconstructions for the dental implant comprising a corresponding number of dental materials, dental mixtures or dental multicomponent systems, where each dental substance, mixture or multicomponent system are curable to the product and the compressive modulus of the product is different at the same curing conditions, or a corresponding number of blanks produced from a hardened or from the dental substance or mixture by curing, where the compressive modulus of the material of each blank is different and is = 420 MPa, and optionally at least one additional ingredient comprising adhesion agents, abutments, implants, molds or molding materials; (4) producing the temporary supraconstruction for the dental implant or the core for the temporary supraconstruction for the dental implant, comprising providing or producing the dental material, the dental mixture or the dental multicomponent system, curing the dental material, the dental mixture or the dental multi-component system, preferably in a mold, optionally providing the kit comprising blanks and adjusting the shape of the blanks for obtaining the temporary supraconstruction, the core or the temporary denture; and (5) temporary supply of the dental implant for cosmetic purposes, comprising (i) providing the temporary superstructure, or many temporary supraconstructions and selecting the temporary supraconstruction, (ii) connecting the temporary supraconstruction with the dental implant, (iii) allowing for a certain period, (iv) dissolving the connection (prepared by the abutment) between the temporary supraconstruction and the dental implant, and optionally (v) selecting a further temporary supraconstruction provided in the step (i), (vi) connecting the temporary supraconstruction with the dental implant selected in the step (v), (vii) allowing for a certain period, (viii) dissolving the connection (prepared by the abutment) between the temporary supraconstruction and the dental implant, and (ix) repeating the steps (v)-(viii) until many or all the temporary supraconstructions are connected to the implant provided in the step (i) and the each connection is dissolved again.