Denture Base Socket Groove Structure for Stronger Tooth Bonding

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Solution Overview

Problem

Dentures produced by resin cast or 3D printing methods are prone to breaking due to insufficient strength, and reinforcing materials like metal or glass fibers complicate the manufacturing process and affect aesthetics.

Innovation Solution

A denture base design with continuous grooves between sockets allows for seamless adhesive application, enhancing the structural integrity of the denture by ensuring the adhesive is continuously disposed over multiple sockets, thereby improving the adhesion strength without using visible reinforcing materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If reinforcing materials like metal or glass fibers are embedded into the denture base, then the strength of the denture is improved, but the manufacturing process becomes more complex and aesthetics are affected

Engineering Contradiction:
Improvestrength of dentureVSAvoidmanufacturing process complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent removes the need for separate reinforcing materials (metal wires, glass fibers) by extracting the reinforcement function from discrete components and integrating it into the continuous adhesive structure itself. The adhesive layer becomes the reinforcing element through its continuous configuration and bonding to multiple sockets simultaneously.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges the functions of adhesion and reinforcement into a single continuous adhesive layer. This layer both bonds artificial teeth to the denture base and provides structural reinforcement, eliminating the need for separate reinforcing materials and simplifying the manufacturing process.

Inventive Principle:
Principle #5Merging (Combining)

2Strength

If reinforcing materials are embedded into the denture base, then the strength of the denture is improved, but the aesthetic appearance is compromised due to visible reinforcing materials

Engineering Contradiction:
Improvestrength of dentureVSAvoidaesthetic appearance
Core Design Contradiction:
StrengthVSShape

Solution Approach 1:

The continuous adhesive layer provides localized reinforcement at critical stress points where artificial teeth are positioned, rather than using bulk reinforcing materials throughout. This targeted approach maintains aesthetic appearance while providing necessary strength enhancement.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The continuous adhesive layer creates a homogeneous structure that integrates seamlessly with the denture base and artificial teeth. This uniform appearance eliminates visible boundaries or textures associated with separate reinforcing materials, preserving aesthetic quality.

Inventive Principle:
Principle #33Homogeneity

3Productivity

If traditional resin cast or 3D printing methods are used to manufacture dentures, then manufacturing efficiency is improved, but the dentures are prone to breaking due to insufficient strength

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoiddurability of denture
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The continuous adhesive layer is prepared and positioned in advance during the manufacturing process, creating pre-bonded connections between sockets before final assembly. This preliminary action ensures that the denture structure is pre-strengthened against breaking during use.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent creates a composite structure combining the denture base material, continuous adhesive layer, and artificial teeth into an integrated assembly. This composite construction provides enhanced durability while maintaining the manufacturing efficiency of modern resin cast and 3D printing methods.

Inventive Principle:
Principle #40Composite materials

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 denture base design significantly enhances the strength and durability of the denture, reducing the risk of breakage while maintaining aesthetic appeal by avoiding visible reinforcing materials.

Implementation Method 1

applying an adhesive material to the socket and the vertical groove; embedding a reinforcing structure in the vertical groove to which the adhesive material is applied

Methodology Applied
Scientific EffectAdhesion: Adhesive

Data Source

PatentEP4248908B1Denture base and manufacturing method for the same
Publication Date: 2026.03.04 SHOFU INC
  • EP4248908B1 patent drawingFigure 1
  • EP4248908B1 patent drawingFigure 2
  • EP4248908B1 patent drawingFigure 3

AI summary

A denture base of the present disclosure includes: a base main body; and a plurality of sockets provided in the base main body and each having a concave shape. The plurality of sockets are provided along a shape of the base main body. The base main body includes a socket partition wall provided between adjacent sockets of the plurality of sockets. The socket partition wall is provided with a groove that communicates with the adjacent sockets each other. The plurality of sockets communicate with each other through the groove.