Dental Arch Positioning Setup for Accurate Implant Abutment Alignment
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Solution Overview
Problem
The final positions of implants for an implant-based full dental bridge in a toothless jaw are not precisely predictable, leading to deviations from planned positions, making it challenging to efficiently and accurately position abutments for the bridge.
Innovation Solution
A dental arch positioning setup comprising a full dental arch with a gingiva section and a support base, featuring through-holes for abutments and a cutout larger than the arch, allowing precise alignment and stabilization, enabling efficient bonding of abutments to implants, and facilitating immediate implant loading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If freehand setting or guided surgery with drill guide is used for implant placement, then implant placement can be performed, but the final positions of implants deviate from planned positions by 2 to 4 mm
Solution Approach 1:
The invention creates a preliminary digital plan for implant positions and uses this plan to manufacture a custom positioning setup with abutment templates. The setup is prepared in advance to match the digital plan, allowing precise transfer of planned positions to the actual surgical procedure. This preliminary preparation resolves the contradiction by establishing precise reference points before the surgical act.
Solution Approach 2:
The invention introduces an intermediary positioning setup that includes abutment templates and reference elements. This intermediary device acts as a mediator between the digital plan and the actual implant placement, transferring the planned positions with high precision. The intermediary setup eliminates the direct deviation between planning and execution that occurs in freehand or guided surgery methods.
2Productivity
If implant positions are not precisely predictable in advance, then implant surgery can be performed, but abutments must be added only after implant setting when precise final positions are determined
Solution Approach 1:
The invention creates abutment templates and positioning references in advance based on the digital plan, before the actual implant surgery. This preliminary preparation allows the positioning of abutments to be predetermined, eliminating the need for additional clinical steps after implant placement. The abutment templates are manufactured ready-to-use, enabling immediate transfer from implant to abutment without waiting for final position determination.
Solution Approach 2:
The invention merges the implant positioning and abutment positioning into a single integrated setup. By combining these functions in one custom-made positioning device, the invention eliminates the sequential steps of first placing implants and then separately positioning abutments. This merging of functions resolves the time loss by allowing both operations to be planned and prepared simultaneously in the digital phase.
3Manufacturing precision
If a custom-made positioning setup with abutment templates is used, then precise positioning of abutments aligned with implants is achieved, but the device complexity increases
Solution Approach 1:
The invention applies local quality by creating a custom positioning setup tailored to each patient's specific anatomy and implant plan. Rather than using a generic complex device, the setup is locally adapted to the individual case, including patient-specific abutment templates and reference elements. This local customization achieves high precision without requiring overly complex universal mechanisms.
Solution Approach 2:
The invention uses copying by creating physical abutment templates from the digital plan. The digital model of the abutments and their positions is copied into physical template elements that can be directly used during surgery. This copying approach simplifies the physical device compared to complex mechanical positioning systems, as the templates are direct replicas of the planned configuration rather than mechanical analogs.
Data Source
AI summary
The invention relates to a dental arch positioning setup comprising a full dental arch with a gingiva section and a support base. The support base is configured to support and position the full dental arch with the gingiva section on a patient's edentulous jaw. An occlusal surface of the support base comprises a cutout for the full dental arch with the gingiva section. The cutout has a cross-section larger than a cross-section of the full dental arch with the gingiva section. A plurality of connecting elements holds the full dental arch with the gingiva section in position over the cutout.