Dental Fit Checking Material Consistency Control

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Solution Overview

Problem

Existing fit checking materials for dental use are not efficient for facilitating fitting checks due to issues related to consistency and ease of application.

Innovation Solution

A fit checking material composition comprising a first paste and a second paste, mixed to achieve a consistency of 37 mm or greater and 43 mm or less, which inhibits free flowing and ensures uniform spreading on the inner surface of dental prostheses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the fit checking material is applied to check the fit of dental prosthesis, then the fit can be determined, but the material flows freely on the inner surface making uniform spreading difficult

Engineering Contradiction:
Improvefit checking accuracyVSAvoidease of application
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent changes the consistency parameter of the fit checking material by controlling the mixing time and temperature to achieve a specific viscosity range (37-43 mm at 35 seconds mixing time at 23°C). This parameter control prevents excessive flow while enabling uniform spreading on the prosthesis inner surface, resolving the contradiction between measurement precision and ease of operation.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If the material consistency is too low, then it spreads easily, but it flows freely and cannot be controlled on the prosthesis surface

Engineering Contradiction:
Improveease of spreadingVSAvoiduniformity of distribution
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent optimizes the consistency parameter through controlled mixing (35 seconds at 23°C) to achieve a balanced viscosity that enables both easy spreading and uniform distribution. The specific consistency range (37-43 mm) ensures the material spreads uniformly without excessive flow, resolving the contradiction between ease of spreading and uniformity of distribution.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If the material is highly viscous, then it resists flowing, but it becomes difficult to apply and spread

Engineering Contradiction:
Improvecontrol of flowVSAvoidease of application
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent adjusts the viscosity parameter through controlled mixing time (35 seconds) and temperature (23°C) to achieve an optimal consistency range (37-43 mm). This range provides sufficient flow resistance to prevent uncontrolled spreading while maintaining ease of application, resolving the contradiction between flow control and ease of application.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250143977A1Fit checking material composition for dental use
Publication Date: 2025.05.08 GC CORP

AI summary

A fit checking material composition for dental use includes a first paste and a second paste. A mixture of the first paste and the second paste 35 seconds after mixing the first paste and the second paste, has a consistency of 37 mm or greater and 43 mm or less at 23° C.