Dental Prosthesis Manufacturing with Integrated Connection

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Solution Overview

Problem

The existing methods for manufacturing dental prostheses on implants are complex, costly, and limited by the need for preformed blocks with specific connection standards, leading to inaccuracies and restrictions in implant compatibility, as well as logistical challenges in storage and transportation.

Innovation Solution

A method and device that simultaneously manufacture the outer wall and connection of a dental prosthesis on an implant using a single manufacturing device, allowing for automatic or quasi-automatic production with machining or laser cutting from a solid block, utilizing computer-aided design to determine the form and connection geometry, and incorporating a machining tool with precise capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If preformed blocks with specific connection standards are used, then implant compatibility is limited, but manufacturing complexity is reduced

Engineering Contradiction:

Improveimplant compatibilityVSAvoidmanufacturing complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The manufacturing device is designed to produce multiple types of connections (direct connection, abutment connection, hybrid connection) using the same device, making the system universal and compatible with different implant standards without requiring separate specialized equipment for each connection type

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The device can adapt to different implant parameters and connection geometries by changing manufacturing parameters and toolpaths rather than requiring physical reconfiguration or different equipment, enabling versatility while maintaining manufacturing simplicity

Inventive Principle:

Principle #35Parameter changes

2Productivity

If preformed blocks are manufactured and stored, then production time is reduced, but storage and transportation costs increase

Engineering Contradiction:

Improveproduction timeVSAvoidlogistical requirements

Core Design Contradiction:

ProductivityVSQuantity of substance

Solution Approach 1:

The dental practice performs on-demand manufacturing of connection blocks using the manufacturing device, eliminating the need to maintain inventories of preformed blocks. The system serves itself by producing components locally when needed, removing logistical dependencies on external storage and transportation

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The invention extracts the manufacturing capability from external laboratories and brings it into the dental practice itself, allowing immediate production of custom blocks without relying on pre-manufactured inventory, thus eliminating storage and transportation requirements

Inventive Principle:

Principle #2Taking out (Extraction)

3Adaptability or versatility

If manual machining of blocks is performed, then flexibility in design is improved, but manufacturing precision decreases

Engineering Contradiction:

Improvedesign flexibilityVSAvoidalignment accuracy

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The invention replaces manual mechanical machining with automated computer-controlled manufacturing processes that can achieve high precision while maintaining design flexibility through software programming and digital modeling, eliminating the trade-off between manual adaptability and precision

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The connection geometry and outer surface are pre-planned using computer-aided design software with precise digital models, allowing complex customized geometries to be defined beforehand and then manufactured with high accuracy by the automated device without manual intervention

Inventive Principle:

Principle #10Preliminary action

4Manufacturing precision

If multiple distinct manufacturing steps are used, then manufacturing accuracy is improved, but production time increases

Engineering Contradiction:

Improvealignment precisionVSAvoidproduction time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The invention combines the manufacturing of the connection geometry and the outer surface into a single integrated manufacturing operation using one manufacturing device, eliminating the need for separate machining steps and transfer operations, thus reducing production time while maintaining precision through continuous computer-controlled processing

Inventive Principle:

Principle #5Merging (Combining)

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

This approach enhances accuracy and versatility, enabling the production of custom dental prostheses directly in a dental practice without the need for a stock of preformed blocks, improving alignment precision and reducing production time and costs.

Implementation Method 1

machining or laser cutting from a solid block

Methodology Applied

Scientific EffectMachining: Abrasion

Implementation Method 2

machining or laser cutting from a solid block

Methodology Applied

Scientific EffectLaser ablation: Laser Ablation

Data Source

PatentUS10945820B2Production of a dental prosthesis

Publication Date: 2021.03.16 LYRA HLDG

AI summary

Method for manufacturing a dental prosthesis on implant, characterized in that it comprises a step of manufacturing of the outer wall (E5) of the dental prosthesis and a step of manufacturing of at least one connection (E6) intended for fixing on to at least one implant.