Sequential Dental Surgical Guide System for Precise Implant Placement
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Solution Overview
Problem
Conventional dental surgical guide systems are costly, time-consuming, and often result in imperfect implant placement due to the need for custom fabrication and lack of precision in drilling axis alignment, leading to potential tissue damage and implant failure.
Innovation Solution
A sequential dental surgical guide system with anchoring sites that occupy the same relative positions on each guide, allowing for precise alignment and secure fixation through a single set of osteotomies, combined with a surgical template and false teeth set that interlock to provide a template for drilling and guide implant placement, utilizing CT scan data for accurate positioning and CNC milling for fabrication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional freehand drilling method is used for implant placement, then the surgical procedure is simple and quick, but the drilling axis alignment is imprecise leading to tissue damage and implant failure
Solution Approach 1:
The surgical guide system is divided into multiple sequential guides (first guide for initial osteotomies, second guide for implant osteotomies, third guide for prosthesis placement), each performing a specific function in the surgical sequence. This segmentation allows each guide to be optimized for its specific purpose while maintaining overall system precision.
Solution Approach 2:
The surgical guides are fabricated before surgery based on CT scan data and virtual treatment planning. The anchoring sites and osteotomy channels are pre-determined and pre-drilled in the guide itself, allowing the surgeon to simply follow the pre-planned path during surgery without making real-time decisions about drilling axis alignment.
2Manufacturing precision
If custom-fabricated surgical guides are used for each patient, then precise implant placement is achieved, but the cost and fabrication time increase significantly
Solution Approach 1:
All measurements, virtual implant placement, and treatment planning are completed before surgery using CT scan data. The surgical guide is fabricated in advance with all osteotomy channels and anchoring sites pre-determined, eliminating the need for time-consuming intraoperative adjustments and reducing surgery time.
Solution Approach 2:
The system uses digital parameters from CT scans and virtual treatment plans to control the fabrication process (CNC milling or 3D printing), allowing precise reproduction of the planned implant positions and angles. This digital parameter-based approach ensures consistency and accuracy while streamlining the fabrication process.
3Adaptability or versatility
If multiple separate surgical guides are used for different surgical steps, then each step can be optimized, but the alignment between steps becomes difficult and time-consuming
Solution Approach 1:
Multiple guides are merged into a single integrated surgical guide system that performs all surgical functions (initial osteotomies, implant osteotomies, and prosthesis placement) through a single set of anchoring sites. The guide includes multiple channels and features that accommodate different surgical instruments and steps while maintaining consistent alignment through the shared anchoring structure.
Solution Approach 2:
The surgical guide is designed as a multi-functional device that can accommodate various surgical instruments and perform multiple operations (drilling, implant insertion, prosthesis attachment) through the same anchoring sites. This universal design eliminates the need for separate alignment procedures between different guides.
4Productivity
If conventional surgical guides without reusability are used, then each surgery requires new guide fabrication, but the cost accumulates and resource waste increases
Solution Approach 1:
Instead of discarding the surgical guide after a single use, the system allows the guide to be removed, cleaned, and reused for subsequent surgical procedures on the same patient or for similar cases. The durable construction and standardized anchoring sites enable multiple uses, reducing material waste and fabrication costs.
Data Source
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AI summary
A sequential dental surgical guide system and method for immediate load is described. The system includes 1) a tooth and tissue borne surgical guide with fixation pins and bone reduction osteotomy sites 2) an implant osteotomy guide and 3) a prosthesis guide. The system does not rely on any anatomical reference points such as tissue or bone after placement of the first tooth and tissue borne reference guide. The sequential guide(s), both surgical implant placement and prosthesis guide rely on the original fixation positions determined by the first guide. Digital treatment planning and design are used to accurately place each sequential guide back to the original fixation pin positions. The fixation pin reference can be pinned and repined in the same sites per sequential guide or fixed in the jaw through the protocol by keeping them in place and switching out the guides.