Dental Prosthesis System for Precise Implant Placement
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Solution Overview
Problem
The accurate placement of dental implants in the jawbone is challenging due to limitations in visual surveying, leading to imperfect drilling axes, potential tissue damage, uneven force distribution, and increased risks of infections and implant failure, while conventional surgical guides are costly, time-consuming, and often imperfect.
Innovation Solution
A dental prosthesis system comprising a primary bar and base-plate that serves as a drilling guide, with removable cylinders for securing implants, allowing for precise implant spacing and orientation, and enabling the system to be reused for multiple restoration configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional freehand drilling method is used, then surgical procedure is simple and quick, but implant placement accuracy deteriorates leading to tissue damage and implant failure
Solution Approach 1:
The surgical guide is divided into two separate components: a base plate that interfaces with the gum surface and a primary bar that guides the drilling axis. This segmentation allows each component to be optimized for its specific function while simplifying fabrication compared to a single complex piece.
Solution Approach 2:
The primary bar serves multiple functions: it guides the drilling axis for implant placement, provides spacing references for multiple implants, and can be reused for different restoration configurations. This multi-functionality reduces the need for multiple specialized tools.
2Measurement precision
If custom-built surgical stents are fabricated for each patient, then implant placement precision is improved, but fabrication time and cost increase significantly
Solution Approach 1:
The base plate and primary bar are fabricated in advance using digital planning software and 3D printing technology, allowing complex custom geometry to be created without time-consuming manual fabrication processes. The components are ready for surgical use before the procedure begins.
Solution Approach 2:
Traditional mechanical fabrication methods (milling, molding) are replaced with additive manufacturing (3D printing). This substitution enables rapid fabrication of complex custom surgical guides directly from digital models, dramatically reducing production time while maintaining precision.
3Ease of operation
If multiple specialized tools are used for different surgical steps, then functional precision is improved, but device complexity and cost increase
Solution Approach 1:
The primary bar is designed to perform multiple functions: guiding drilling axes, providing spacing references, and serving as a template for different restoration configurations. This eliminates the need for multiple separate guiding tools and templates.
Solution Approach 2:
Multiple guiding functions that would traditionally require separate tools are merged into a single integrated primary bar component. This consolidation simplifies the surgical workflow while maintaining all necessary precision functions.
Data Source
AI summary
A dental prosthesis system and a method of using same having a prosthesis, a primary bar, and a base-plate. The primary bar is adapted to be received on the implants and to be used as a superstructure for supporting the prosthesis and/or a verification jig. The base-plate has a shape adapted to be received on the patient's gum surface, having at least one hole each in alignment with a corresponding one of the aperture of the primary bar when the primary bar is seated on the base-plate, each hole of the base-plate correspond to the position of each implant hole, the base-plate supporting the primary bar to form a drilling guide for guiding the drilling of implants holes in the patient's jawbone, an impression matrix for creating a physical model of the patient's mouth with implants, and/or a superstructure when removable cylinders are attached to the primary bar.