Dental Prosthesis Positioning Guide for Immediate Implant Occlusion
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Solution Overview
Problem
In one-day implant surgeries, there is a need for a dental prosthesis that can be placed immediately after surgery, accounting for potential deviations in implant placement, while maintaining proper occlusion, which is often compromised due to variations in implant positioning.
Innovation Solution
A method for designing a digital prosthesis and positioning guide that includes creating a digital prosthesis design with enlarged abutment holes and a positioning guide, allowing for flexible placement and ensuring proper occlusion, using CAD software to combine surface scans and radiographic images for accurate jaw modeling, and manufacturing the prosthesis and guide using 3D processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the abutment hole is made to fit the abutment precisely, then the prosthesis stability is improved, but the ease of placement deteriorates due to potential implant position deviations
Solution Approach 1:
The abutment hole dimensions are deliberately increased beyond the exact fit requirements, changing the dimensional parameters to accommodate potential implant position deviations while maintaining sufficient stability through the positioning guide
Solution Approach 2:
A positioning guide is introduced as an intermediary component between the prosthesis and the implant site. This guide ensures accurate positioning and proper occlusion even when the abutment hole is enlarged to facilitate easier placement amid implant position variations
2Ease of operation
If the abutment hole is enlarged to accommodate implant deviations, then the ease of placement is improved, but the occlusion precision deteriorates due to potential misalignment
Solution Approach 1:
The positioning guide serves as a mediator that transfers the prosthesis to the implant while ensuring precise occlusion alignment. It compensates for the enlarged abutment hole by providing external guidance surfaces that maintain accurate positioning relative to the opposing jaw
Solution Approach 2:
The positioning guide is designed and manufactured in advance with pre-determined positioning surfaces that correspond to the patient's specific occlusion anatomy. This preliminary preparation ensures that when the prosthesis is placed, the occlusion is automatically correct despite the enlarged abutment hole
3Manufacturing precision
If a positioning guide is added to ensure proper occlusion, then the occlusion precision is improved, but the device complexity increases
Solution Approach 1:
The positioning guide is merged with the prosthesis as an integrated assembly. The guide contains the essential positioning surfaces and geometry needed for accurate placement, combining multiple functions into a single component that reduces overall system complexity while maintaining precision
Data Source
AI summary
A method for designing a dental prosthesis and a positioning guide for placing the dental prosthesis on implants in the jaw while maintaining proper occlusion relates to designing the dental prosthesis and the positioning guide prior to implant placement.