Elastic Dental Cementing Device for Uniform Bond Distribution

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Solution Overview

Problem

Current methods for cementing dental restorations to bases are cumbersome, time-consuming, and costly, often resulting in uneven cement distribution and reduced connection strength due to manual handling and the need for separate modeling and application steps.

Innovation Solution

A dental restoration cementing device with an elastic body portion that fits tightly into the base's hollow interior, featuring a hollow cementing portion with a lateral opening to direct cement between the restoration and base, ensuring uniform distribution and precise positioning, while preventing cement from entering the base's interior.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If manual cementing is used to simplify the process, then time and cost are reduced, but cement distribution uniformity and connection strength deteriorate

Engineering Contradiction:
Improvecementing timeVSAvoidcement distribution uniformity
Core Design Contradiction:
Loss of timeVSManufacturing precision

Solution Approach 1:

The cementing device is segmented into distinct functional parts: a body portion for sealing the base interior, a hollow cementing portion for cement storage and delivery, and a lateral opening for controlled cement discharge. This segmentation allows each part to perform its specific function efficiently, ensuring uniform cement distribution while maintaining a simplified manual operation process

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The hollow cementing portion acts as an intermediary between the cement source and the gap between restoration and base. It controls cement flow through the lateral opening, ensuring uniform distribution into the gap without requiring complex manual manipulation, thus maintaining both simplicity and precision

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If model-based cementing is used to achieve precise positioning, then manufacturing precision is improved, but device complexity and time consumption increase

Engineering Contradiction:
Improverestoration positioning precisionVSAvoidcementing process complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The invention extracts the essential function of precise positioning from the complex model-based process. The body portion is designed to tightly fit into the hollow interior of the base, and the hollow cementing portion extends through the restoration passage, providing inherent positioning guidance that eliminates the need for separate models while maintaining precision

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The cementing device combines multiple functions into a single tool: it provides positioning guidance, seals the base interior, delivers cement uniformly, and prevents cement entry into the base interior. This multi-functionality replaces the need for separate modeling and cementing steps, reducing overall process complexity while maintaining precision

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If elastic plug is used to close base interior, then ease of operation is improved, but reliability of sealing deteriorates

Engineering Contradiction:
Improvebase sealing easeVSAvoidsealing reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The body portion is designed with a geometry that enables it to tightly fit into the hollow interior of the base before cementing begins. This preliminary sealing action ensures reliable prevention of cement entry into the base interior, while the simple insertion process maintains ease of operation

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The body portion appears to be made of a flexible or elastic material that can deform to conform to the interior geometry of the base, ensuring a reliable seal. This flexibility maintains sealing reliability while the simple insertion and removal process preserves ease of operation

Inventive Principle:
Principle #30Flexible shells and thin films

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

Enables precise, fast, and cost-efficient cementing of dental restorations to bases with uniform cement distribution, reducing manual effort and improving connection strength and comfort.

Implementation Method 1

a preferably elastic body portion dimensioned to tightly fit into the hollow interior of the base

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS10987200B2Cementing a dental restoration to a base
Publication Date: 2021.04.27 INSTITUT STRAUMANN AG
  • US10987200B2 patent drawing
  • US10987200B2 patent drawing
  • US10987200B2 patent drawing

AI summary

A dental restoration cementing device for cementing a dental restoration is disclosed having a closable axial passage to a base having a hollow interior which is open into an occlusal direction. The device includes a preferably elastic body portion dimensioned to tightly fit into the hollow interior of the base via the passage of the dental restoration. The device further includes a hollow cementing portion extending from the body portion. The cementing portion has a lateral opening which is located outside the base when the body portion is fitted into the hollow interior of the base such that a pathway is formed from the interior of the cementing portion through the lateral opening into a gap between the dental restoration and the base. The dental restoration cementing device allows for precisely, quickly and cost efficiently cementing the dental restoration to the base.