Denture Base Step-Like Socket for Consistent Tooth Bonding
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Solution Overview
Problem
The setup of artificial teeth in denture bases is challenging due to dimensional variances and surface imperfections, leading to instability, misalignment, and inconsistent bonding, which requires significant time and expertise to correct, especially with modern CAD/CAM technologies that can introduce friction and bonding issues.
Innovation Solution
A denture base with a step-like tooth socket compartment design featuring a flat lingual-basal surface and a convex buccal-basal surface, including prominences to create a predetermined clearance for bonding agents, ensuring consistent and stable tooth placement and bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If precise matching surfaces are created between tooth and denture base, then fit is improved, but friction and sticking increase causing jamming
Solution Approach 1:
The basal surface of the tooth is segmented into multiple prominences (e.g., three prominences arranged in a triangular pattern) rather than being a single continuous surface. This segmentation creates discrete contact points that reduce friction and sticking during insertion, preventing jamming while maintaining precise fit through the coordinated arrangement of these prominences.
Solution Approach 2:
The prominences on the tooth basal surface are asymmetrically arranged (e.g., varying heights, non-uniform spacing) to complement the corresponding asymmetric features on the denture base socket. This asymmetric matching allows the tooth to be inserted with reduced friction while achieving precise alignment, as the asymmetric features guide the tooth into its correct position without creating uniform sticking points.
2Manufacturing precision
If bonding surfaces are made to precisely match, then fit is improved, but bond quality becomes more variable
Solution Approach 1:
The bonding interface is segmented into multiple discrete prominence structures rather than a continuous surface. This segmentation ensures that bonding agent is distributed across multiple localized areas, creating more consistent bond quality. The prominences provide reliable anchoring points that maintain bond strength even when overall surface matching varies slightly, reducing variability in bond quality across different teeth and dentures.
Solution Approach 2:
The prominences act as intermediary structures between the tooth and denture base, creating controlled gaps that facilitate consistent bonding agent placement. These prominences mediate the bonding process by ensuring adequate spacing for bonding agent distribution while maintaining precise fit, thereby improving bond quality consistency.
3Shape
If surface imperfections are isolated to basal tooth surface, then aesthetics are improved, but instability and misalignment increase
Solution Approach 1:
Surface imperfections from the tooth molding process are segmented and concentrated into specific non-visible basal areas corresponding to the prominence structures. By localizing imperfections to these segmented basal regions rather than distributing them across the entire tooth surface, the visible tooth surfaces maintain high aesthetic quality while the basal prominences provide stable, precise contact points with the denture base to prevent instability and misalignment.
Data Source
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Figure 5A~5H
AI summary
The invention relates to a denture base having a plurality of tooth socket compartments where one or more of the tooth socket compartments comprises a convex surface configured in step-like structure, and one or more prominences on the step-like structure. The invention further relates to a dental prosthesis including the denture base, at least one bonding agent, and a plurality of artificial teeth. Artificial teeth are bonded within tooth socket compartments such that each artificial tooth can rest upon the top of each prominence in the tooth socket compartment, maintaining a predetermined amount of bonding agent between the artificial tooth and the denture base. The denture base and dental prosthesis of the invention can better address the need for easier, more efficient and reliable set-up of artificial teeth in a denture base, and ensuring more consistent and predictable bonding of artificial teeth in a denture base.