Dental Prosthesis Data Record Attribute Integration

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Solution Overview

Problem

Current CAD/CAM systems for producing dental prostheses primarily focus on the shape description, lacking the ability to incorporate additional information such as production accuracy, material, and color attributes, which are crucial for specialized prostheses and manufacturing processes.

Innovation Solution

A system that creates a data record with triangular surface elements, allowing for the inclusion of multiple attributes for each element, enabling the selection and assignment of attributes through hardware and software components, and utilizing these attributes to control manufacturing processes like laser sintering, ensuring precise production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If traditional CAD/CAM systems are used to create data records for dental prostheses, then the shape and surface description is achieved, but additional information such as production accuracy, material, and color attributes cannot be incorporated

Engineering Contradiction:
Improveproduction accuracy, material, and color attributesVSAvoiddata record structure
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The data record is segmented into multiple entry types (first entries for shape/surface description, second entries for attributes) organized in a hierarchical structure. This allows comprehensive information storage while maintaining systematic organization and manageability of the complex data.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent adds a new dimension to the traditional 3D geometric data by incorporating attribute information (production accuracy, material, color) as a fourth dimension of data description. This transforms the data structure from purely spatial to include manufacturing and material properties.

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

2Adaptability or versatility

If only shape information is stored in data records, then the data structure remains simple, but specialized prostheses requiring additional manufacturing information cannot be produced

Engineering Contradiction:
Improvecustomization for specialized prosthesesVSAvoidproduction accuracy
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

Attributes are assigned to specific elements (vertices, edges, facets) of the dental prosthesis model, allowing different production parameters to be specified for different regions. This enables localized control of manufacturing precision and material properties where needed.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

All manufacturing information including production accuracy, material, and color attributes is pre-defined and stored in the data record before the manufacturing process begins. This preliminary preparation enables precise control during production without requiring real-time adjustments.

Inventive Principle:
Principle #10Preliminary action

3Manufacturing precision

If attributes are manually assigned to each element, then customization is possible, but the process becomes time-consuming

Engineering Contradiction:
Improveattribute assignment accuracyVSAvoidattribute assignment time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The system automatically assigns attributes to elements based on predefined criteria and rules, reducing manual intervention. The computer system performs self-service by examining the model and automatically setting corresponding attributes, significantly reducing time consumption while maintaining accuracy.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system provides feedback mechanisms that allow verification and adjustment of automatically assigned attributes. Users can review the assigned attributes and make corrections if needed, ensuring accuracy while minimizing manual time investment.

Inventive Principle:
Principle #23Feedback

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 the production of dental prostheses with improved accuracy and customization by integrating attribute information into the manufacturing process, allowing for tailored production parameters such as layer thickness and material application, enhancing the overall quality and fit of the prostheses.

Implementation Method 1

a laser beam 49 is focused onto a focus 50 and heated locally, which leads to a solidification of the shapeless material located there

Methodology Applied
Scientific EffectLaser heating: Laser

Implementation Method 2

a laser sintering device, in which a laser beam 49 is focused onto a focus 50 and heated locally, which leads to a solidification of the shapeless material located there

Methodology Applied
Scientific EffectLaser sintering: Selective Laser Sintering

Data Source

PatentEP2320828B1System for creating a data record describing a dental prosthesis part, system for the production of a dental prosthesis part and method
Publication Date: 2018.04.25 STRAUMANN HOLDING AG
  • EP2320828B1 patent drawingFigure 1
  • EP2320828B1 patent drawingFigure 2
  • EP2320828B1 patent drawingFigure 3a~3b

AI summary

A system for creating a data record describing a dental prosthesis part, wherein the system comprises means with which a data record can be created, comprising: Entries regarding a plurality of elements that describe the surface or the shape of a dental prosthesis part, wherein for each entry one, two or more attributes are listed. The invention further relates to a corresponding system for producing a dental prosthesis part with a data record, corresponding methods and a corresponding data record.