Digitizable Dental Implant Analog for Direct Extraoral Scanning
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Solution Overview
Problem
Current dental implant positioning methods require a physical oral model and scanbodies, leading to precision loss, increased work time, and material usage, as well as high costs for professionals to adopt CAD-CAM technology.
Innovation Solution
A digitizable dental implant replica that allows direct extraoral digitalization on an impression tray without forming a positive, eliminating the need for physical models and scanbodies, using a cylindrical or cylindrical-conical design with specific scanning zones for precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a physical oral model is formed by pouring plaster into an impression tray to capture implant position, then the implant position can be recorded, but precision is lost due to material expansion and additional work time and materials are required
Solution Approach 1:
The invention extracts the essential function of recording implant position from the complex process of forming a physical plaster model. By placing a digitizable replica directly in the impression tray and scanning it extraorally, the system eliminates the intermediate step of creating a positive plaster model, thereby removing the source of precision loss and reducing work time.
Solution Approach 2:
The invention creates a digitizable replica that copies the essential positioning information of the implant directly in the impression tray. This replica can be scanned to create a digital copy of the implant position, eliminating the need for physical plaster model copying while maintaining precision and reducing material usage.
2Measurement precision
If scanbodies are used to mark implant position on the model, then digitalization can be achieved, but additional materials and steps are required increasing complexity
Solution Approach 1:
The invention merges the functions of the implant replica and the scanbody into a single integrated digitizable replica. This combined structure eliminates the need for separate scanbodies and reduces the number of components and steps required, thereby reducing device complexity while maintaining digitalization accuracy.
Solution Approach 2:
The digitizable replica serves multiple functions: it marks the implant position, provides a scannable surface for digitalization, and eliminates the need for separate scanbodies. This multi-functional design reduces overall system complexity while achieving the same measurement precision.
3Measurement precision
If intraoral scanners are used to scan the patient's mouth with scanbodies coupled to implants, then precise digital records can be obtained, but the high cost of machinery makes it unaffordable for most professionals
Solution Approach 1:
The invention introduces an intermediary approach by using extraoral scanning of a digitizable replica instead of direct intraoral scanning. This mediator (the scanned replica) allows accurate digital recording without requiring expensive intraoral scanner equipment, making the technology accessible to more professionals while maintaining precision.
4Measurement precision
If an extraoral scan is performed on a physical plaster model, then the implant position can be digitized, but the process requires forming a positive model which loses precision and increases material usage
Solution Approach 1:
The invention extracts the essential positioning information directly from the impression tray with the digitizable replica, eliminating the need to pour and expand plaster material to create a positive model. This reduces material usage and prevents precision loss from material expansion.
Solution Approach 2:
Instead of creating a physical plaster copy, the invention creates a digital copy by scanning the digitizable replica directly in the impression tray. This digital copying process eliminates the need for physical plaster material while maintaining accurate implant position information.
Data Source
Figure 1a~1b
Figure 2
Figure 3~4
AI summary
A digitizable dental implant replica, which relates to a replica of a dental implant that is able to be scanned by means of an extraoral scanner once it has been positioned on an impression post in the patient's dental impression tray. By means of the present invention, it is no longer necessary to previously make the oral model by forming a positive of the dental impression tray for extraoral digitalization of the position of the patient's implant, nor is it necessary to use additional scanbodies. Eliminating the process of forming a positive avoids the loss of precision caused by forming the positive of the tray, which further reduces the work time and the use of materials.