Dental Prosthesis Mold Block with Differential Hardness for One-Piece Implants
Solution Overview
Problem
Current dental implants, whether one-piece or multi-part, face challenges such as difficulty in customization, potential bacterial colonization due to gaps, mechanical wear, and loosening of components, especially in multi-part implants, leading to peri-implantitis and implant loss.
Innovation Solution
A dental prosthesis mold block with varying hardness materials, where a harder outer material surrounds a softer inner material, allowing for a one-piece implant to be manufactured using CAD/CAM, ensuring secure anchoring and aesthetic design while enabling extraoral fabrication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a multi-part implant is used, then customization is easier and extraoral processing is simplified, but gaps form between components allowing bacterial migration and mechanical wear occurs
Solution Approach 1:
The patent merges multiple implant components into a single integrated piece, eliminating gaps between components that would otherwise allow bacterial migration. The unified structure maintains the ability for extraoral processing while preventing the formation of harmful interfaces between separate parts.
Solution Approach 2:
The patent employs composite materials with different hardness values within a single implant structure. The inner material has lower hardness than the outer material, creating a composite structure that provides both customization capability and resistance to bacterial colonization and mechanical wear.
2Adaptability or versatility
If standard one-piece implants are used, then customization is limited, but processing complexity increases due to extraoral handling requirements
Solution Approach 1:
The patent applies local quality by incorporating materials with different hardness values in specific regions of the implant. The inner material with lower hardness allows for customized post formation, while the outer material with higher hardness provides structural integrity and aesthetic properties, enabling customization without increasing processing complexity.
3Reliability
If the inner material has lower hardness than the outer material, then secure anchoring is achieved with aesthetic design, but manufacturing precision requirements increase
Solution Approach 1:
The patent uses composite materials with distinct hardness values to achieve both secure anchoring and aesthetic design. The inner softer material provides anchoring security while the outer harder material ensures durability and appearance, with the material differentiation being deliberately engineered rather than requiring high manufacturing precision.
Data Source
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AI summary
The present invention relates to a dental prosthesis mold (10) for manufacturing a dental prosthesis. This mold has an inner material (13) that is at least partially surrounded by an outer material (14) whose hardness differs from that of the inner material (13). The inner material (13) forms part of a first surface (11) of the dental prosthesis mold (10). The invention further relates to a method for manufacturing a dental prosthesis. In this method, a dental prosthesis mold (10) is provided, and the dental prosthesis is manufactured by removing material from the dental prosthesis mold (10) using a CAD/CAM process. This process creates a pin with a self-tapping external thread.