Variable-Angle Artificial Tooth Demonstration Tool for Dental Resin Evaluation

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Solution Overview

Problem

Dental specialists lack a reliable method to check the performance of dental filling composite resins before purchase, particularly in terms of color tone adaptation, sculptability, and usability for various tooth surfaces, and conventional demonstration tools are unstable when used on uneven tooth surfaces.

Innovation Solution

A demonstration tool comprising artificial teeth with variable angles and a supporting structure body, allowing stable preparation and observation of lost portions and cavities on arbitrary tooth surfaces, including multiple tooth types and variable angles for comprehensive evaluation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional molar with a flat occlusal surface is used for demonstration, then the tooth can be stably positioned, but it cannot demonstrate repair on arbitrary tooth surfaces including buccal and labial surfaces

Engineering Contradiction:
Improvedemonstration capability on various tooth surfacesVSAvoidstability of tooth positioning
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The artificial tooth is divided into multiple independent tooth bodies, each having a different surface orientation (occlusal surface, buccal surface, labial surface). This segmentation allows each tooth body to be optimally positioned for demonstrating repairs on its specific surface while maintaining overall system stability through the supporting structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The supporting structure introduces a new spatial dimension by allowing rotation and tilting of tooth bodies relative to the support. This enables arbitrary surfaces of the artificial tooth to be oriented in optimal positions for demonstration, transforming a single fixed-orientation tooth into a multi-orientation demonstration system.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If the artificial tooth is made rotatable to access various surfaces, then repair demonstration on arbitrary surfaces becomes possible, but the stability of tooth positioning deteriorates

Engineering Contradiction:
Improveaccess to various tooth surfacesVSAvoidpositioning stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The tooth body is designed with rotational capability around the longitudinal axis of the supporting structure. This dynamic feature allows the tooth to be rotated to present different surfaces (occlusal, buccal, labial) for repair demonstration while the supporting structure maintains overall system stability through its fixed base and adjustable mounting mechanisms.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If multiple tooth types are included in the demonstration tool, then comprehensive evaluation of dental filling composite resin is enabled, but the device complexity increases

Engineering Contradiction:
Improvecomprehensive evaluation capabilityVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The supporting structure is designed as a universal platform that can accommodate multiple types of artificial teeth (molars, premolars, canines, incisors). Each tooth type can be mounted on the same support structure, which provides standardized mounting interfaces and rotation mechanisms. This universality enables comprehensive evaluation of dental filling composite resin across different tooth types without requiring separate demonstration tools for each tooth type.

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

Data Source

PatentEP4597477A1Demonstration tool and demonstration method
Publication Date: 2025.08.06 SHOFU INC
  • EP4597477A1 patent drawingFigure 1
  • EP4597477A1 patent drawingFigure 2
  • EP4597477A1 patent drawingFigure 3

AI summary

The disclosure provides a demonstration tool and a demonstration method that enable stable preparation of each or one of a lost portion and a cavity at an arbitrary site of an artificial tooth, enable repair of the artificial tooth including each or one of the lost portion and the cavity with use of a dental filling composite resin, and then enable observation of a repaired site in a plurality of directions. A demonstration tool is used for demonstration including filling to cure a dental filling composite resin in each or one of a lost portion and a cavity of an artificial tooth, and the demonstration tool comprises at least one artificial tooth including an artificial tooth having each or one of a lost portion and a cavity, and a structure body supporting the at least one artificial tooth, wherein the structure body supporting the at least one artificial tooth is coupled to the at least one artificial tooth, and the at least one artificial tooth has a variable angle.