Surgical Template Generation from 3D Oral Data
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Solution Overview
Problem
The existing treatment workflow for guided oral surgery is complex and time-consuming due to the need for a radiographic guide, which requires external lab production, increases radiation exposure for patients, and complicates the surgical template production process.
Innovation Solution
A method that generates a surgical template directly from 3D surface data of a patient's oral situation, eliminating the need for a radiographic guide by creating a virtual surgical template model and producing a physical template using additive manufacturing techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a radiographic guide is produced and used in the treatment workflow, then the surgical template production achieves high precision, but the treatment workflow becomes more complex and time-consuming due to external lab production and transportation
Solution Approach 1:
The patent extracts and eliminates the radiographic guide component from the treatment workflow. By directly producing the surgical template from the patient's jaw using computer-aided design and additive manufacturing, the system removes the intermediate radiographic guide step, external lab production, and associated transportation, thereby simplifying the workflow while maintaining precision through digital modeling
Solution Approach 2:
The patent merges the functions of the radiographic guide and surgical template into a single integrated surgical template. The template incorporates both the positioning functionality previously requiring a separate radiographic guide and the surgical guidance features, eliminating multiple components and steps in the treatment workflow
2Manufacturing precision
If a radiographic guide is produced and used, then the surgical template production achieves high precision, but the production process becomes more expensive and time-consuming
Solution Approach 1:
The surgical template is produced directly in-house using additive manufacturing technology, eliminating the need for external laboratory services. The system performs the entire production process internally from digital design to physical template creation, reducing both time and cost while maintaining high precision through controlled manufacturing
Solution Approach 2:
The patent replaces traditional mechanical production methods and external lab processes with computer-aided design and additive manufacturing. This substitution enables direct digital-to-physical fabrication of the surgical template, significantly reducing production time and cost while maintaining or improving precision through digital modeling and controlled manufacturing parameters
3Manufacturing precision
If a radiographic guide is used during scanning, then the surgical template achieves accurate positioning, but the patient receives increased radiation exposure
Solution Approach 1:
The patent extracts and removes the radiographic guide from the scanning process. By using existing pre-operative imaging data and computer-aided design to create the surgical template, the system eliminates the need for additional radiographic scanning with the guide, thereby reducing patient radiation exposure while maintaining accurate implant placement through digital planning and template guidance
Data Source
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AI summary
An embodiment of the invention provides a method of producing a surgical template comprising the steps of: obtaining a set of 3D surface data, the 3D surface data representing a surface of a patient's oral situation, obtaining a support structure model describing a surgical template configured to fit to a portion of the surface of the patient's oral situation, obtaining planned bore position data, the planned implant position data describing the longitudinal axes of a set of one or more planned implant bore holes relative to the 3D surface data, automatically modifying the support structure model to provide support material for guide holes in the support structure model corresponding to the one or more planned implant bore holes, producing the dental splint in dependence on the modified support structure model.