One-Piece Dental Prosthesis With Self-Tapping Pin
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Solution Overview
Problem
Standard one-piece dental implants are difficult to customize post-insertion due to potential loosening and heating issues, while multi-part implants face challenges with bacterial migration and mechanical wear leading to peri-implantitis and structural failure.
Innovation Solution
A method using a denture mold block with a self-tapping pin and CAD/CAM processing to produce a one-piece dental prosthesis, combining secure anchoring and aesthetic design, with a metal pin and ceramic structure, and optional osseointegration coating for enhanced biocompatibility and healing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard one-piece dental implants are used, then structural integrity and prevention of bacterial migration are improved, but customization capability deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-embedding a pin with external thread into the dental prosthesis block before CAD/CAM machining. This allows the block to be securely anchored in the machining device during processing, enabling precise customization while maintaining the one-piece structural integrity. The pin serves as a preliminary fixation element that facilitates subsequent customization without compromising the final monolithic structure.
2Adaptability or versatility
If multi-part dental implants are used, then customization capability is improved, but reliability deteriorates due to gaps and bacterial migration
Solution Approach 1:
The patent merges the advantages of multi-part implants (customization capability through separate components) with the advantages of one-piece implants (structural integrity and bacterial prevention). The pin with external thread acts as a connecting element that is integrated into the block during machining, creating a monolithic structure that eliminates gaps between components while still allowing for precise customization of the abutment geometry.
3Adaptability or versatility
If multi-part dental implants are used, then customization capability is improved, but durability deteriorates due to mechanical wear and screw loosening
Solution Approach 1:
The patent combines the customization capability of multi-part implants with the durability of one-piece implants by integrating the pin with external thread into the block during CAD/CAM machining. This creates a monolithic structure that eliminates screw connections, thereby preventing mechanical wear, screw loosening, and component separation over time, while still allowing precise customization of the abutment geometry.
4Manufacturing precision
If standard one-piece dental implants are processed extraorally, then manufacturing precision is improved, but the implant components may loosen or heat up
Solution Approach 1:
The patent applies preliminary action by embedding the pin with external thread into the block before extraoral machining. This preliminary fixation allows the block to be securely held in the CAD/CAM device, enabling high-precision machining of the abutment geometry. The pin serves as a preliminary anchoring element that facilitates precise manufacturing without causing loosening or heating issues during processing.
5Strength
If a pin with self-tapping external thread is embedded in the dental prosthesis block, then secure anchoring in the jaw is improved, but device complexity increases
Solution Approach 1:
The patent merges the pin with the dental prosthesis block through integrated CAD/CAM machining. The pin with self-tapping external thread is embedded in the block and machined as a single monolithic structure, eliminating the need for separate assembly steps. This integration maintains anchoring strength while reducing device complexity by removing the need for separate pin components and assembly procedures.
Data Source
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AI summary
The present invention relates to a dental prosthesis forming block (10) for producing a dental prosthesis (50). Said forming block comprises a pin (20) with a self-tapping outer thread, which is arranged on a first surface (11) of the dental prosthesis forming block (10). The invention further relates to a method for producing a dental prosthesis (50). In this method the dental prosthesis block (10) is provided and the dental prosthesis (50) is produced by removing material from the dental prosthesis forming block (10) by means of a CAD/CAM method, such that the pin (20) forms part of the finished dental prosthesis (50).