Dental Coloring Stamp With Open-Celled Sponge Transfer Pad

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Solution Overview

Problem

Current methods for coloring dental restorations are complex, require special training, and lack efficiency in achieving high-quality, consistent color gradations, often necessitating multiple colors and manual steps prone to variability.

Innovation Solution

A dental coloring stamp with an open-celled elastic sponge transfer pad, allowing for easy application of a dental coloring solution to a dental restoration precursor, enabling color gradation with a single solution and minimizing manual steps, while the stamp's design accommodates different color shades and a housing system for simultaneous stamping from opposite sides.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual brushing methods are used to apply coloring solutions to different areas, then color gradation can be achieved, but the process becomes complex and requires special training

Engineering Contradiction:
Improvecolor gradation qualityVSAvoidcoloring process complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The invention extracts the coloring solution application function from the complex manual brushing process and concentrates it into a single stamp device with pre-positioned solution reservoirs. The stamp contains multiple coloring solutions in separate chambers that can be applied to different areas through a single stamping action, eliminating the need for manual brushing and special training while maintaining color gradation quality.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention merges multiple coloring solution application functions into a single integrated stamp device. Multiple reservoirs containing different coloring solutions are combined in one stamp head, allowing simultaneous application of different colors to different areas through one stamping action, thereby simplifying the overall coloring process.

Inventive Principle:
Principle #5Merging (Combining)

2Manufacturing precision

If multiple coloring solutions are applied manually to different areas, then color gradation is achieved, but the number of manual steps increases and variability is introduced

Engineering Contradiction:
Improvecolor consistencyVSAvoidoperational simplicity
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The stamp device is segmented into multiple independent reservoir chambers, each containing a specific coloring solution. Each chamber has its own application tip positioned to apply color to a specific area. This segmentation allows different colors to be applied simultaneously without manual intervention, ensuring consistency and reducing variability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The stamp device is designed to automatically dispense the correct coloring solution to the correct area through its internal reservoir and tip configuration. The device serves itself by mechanically controlling the application of multiple colors without requiring manual selection or mixing, thereby ensuring consistency and simplifying operation.

Inventive Principle:
Principle #25Self-service

3Productivity

If standardized blanks are used for manufacturing, then production efficiency is improved, but customization of color and color structure becomes difficult

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidcolor customization capability
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The stamp device is prepared in advance with multiple coloring solutions loaded into separate reservoirs. The positioning and configuration of the reservoirs and application tips are predetermined to match the desired color pattern. This preliminary preparation allows standardized blanks to be quickly customized with specific color structures without affecting manufacturing efficiency.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention applies different coloring solutions to specific local areas of the standardized blank through precisely positioned application tips. Each tip delivers a specific color to a predetermined location, allowing customization of color and color structure while maintaining the efficiency of standardized blank manufacturing.

Inventive Principle:
Principle #3Local quality

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 solution simplifies the coloring process, reduces variability, and achieves high-quality color gradations efficiently, making it easier to use and cost-effective, with improved reproducibility and reduced manual steps.

Implementation Method 1

The transfer pad being at least partially formed of an open-celled elastic sponge

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

The coloring solutions are applied to the dental ceramic being in a porous and absorbent stage

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Implementation Method 3

The dental restoration precursor is typically fired or sintered until substantially all voids are eliminated to form the dental restoration

Methodology Applied
Scientific EffectSintering: Sintering

Data Source

PatentUS10512526B2Dental coloring stamp and a method of coloring
Publication Date: 2019.12.24 SOLVENTUM INTELLECTUAL PROPERTIES CO
  • US10512526B2 patent drawing
  • US10512526B2 patent drawing
  • US10512526B2 patent drawing

AI summary

A dental coloring stamp has a transfer pad for transferring a dental coloring solution to a precursor of a dental restoration. The transfer pad is at least partially formed of an open-celled elastic sponge and has a free transfer surface. The cross-section of the transfer pad is greater than a circular area of 10 mm in diameter so that a side of a dental restoration precursor can be stamped and thus colored. The invention helps facilitating the coloring of dental restorations.