Removable Dentures With Segmented Buffer Elements for Bite-Force Relief

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Solution Overview

Problem

Existing removable dentures suffer from damage due to direct transmission of bite force, leading to reduced lifespan and potential gum injury, and lack efficient assembly methods.

Innovation Solution

Incorporation of a buffer element with cutting grooves on the denture framework to disperse stress and a positioning structure for efficient assembly, reducing vertical bite force transmission to the denture base and gums.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the denture crown is directly connected to the denture framework with rigid contact, then the structure is simple and easy to manufacture, but the bite force is directly transmitted to the denture base causing damage and reducing lifespan

Engineering Contradiction:

Improveease of manufactureVSAvoidlifespan

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

A buffer element is introduced as an intermediary component between the denture framework and denture base. This buffer element absorbs and disperses the bite force, preventing direct transmission to the denture base while maintaining structural simplicity and ease of manufacture.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Device complexity

If the denture framework lacks positioning and guiding structures, then the device complexity is low, but the assembly time increases and automation is difficult

Engineering Contradiction:

Improvedevice complexityVSAvoidassembly time

Core Design Contradiction:

Device complexityVSLoss of time

Solution Approach 1:

Positioning arcs and guiding structures are pre-formed on the buffer element and denture framework during manufacturing. These preliminary positioning features enable rapid alignment and assembly without requiring complex positioning procedures, thus reducing assembly time while adding minimal structural complexity.

Inventive Principle:

Principle #10Preliminary action

3Device complexity

If the denture framework has no stress buffering structure, then the structure is simple, but the bite force concentrates on the denture base and gums causing damage

Engineering Contradiction:

Improvestructure complexityVSAvoidstress concentration

Core Design Contradiction:

Device complexityVSObject-affected harmful factors

Solution Approach 1:

The buffer element is divided into multiple segments with cutting grooves that create multiple stress distribution paths. This segmentation allows the bite force to be dispersed across multiple points and directions, preventing stress concentration on the denture base and gums while adding minimal structural complexity.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20250331968A1Removable dentures device and removable dentures device assembly method

Publication Date: 2025.10.30 IND TECH RES INST

AI summary

A removable dentures device includes a denture base, a denture framework, at least one buffer element and at least one denture crown assembly. The denture framework is provided on the denture base. The buffer element includes buffer body and cutting groove. The buffer body is provided on the framework, and the cutting groove is formed on a side surface of the buffer body. The denture crown assembly includes denture crown body and accommodation groove, and the accommodation groove is formed on the bottom of the denture crown body. The buffer body is provided inside the accommodation groove. In addition, a removable dentures device assembly method is also proposed.