Scanning Jig Inclined Surface Dental Data Accuracy
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Solution Overview
Problem
Conventional scanning jigs face challenges in achieving accurate replacement of three-dimensional shape data, particularly in the longitudinal and rotational directions, affecting the fitting accuracy of dental abutments and artificial tooth roots.
Innovation Solution
A scanning jig with a bottomed cylindrical main body, a fixation member, and a magnet, featuring an inclined end surface without holes or grooves, allowing for improved attachment and data replacement accuracy by utilizing a large end surface and positional determinations in axial, rotational, and radial directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the scanning jig end surface has holes or grooves for screw attachment, then the fixation to analog is secure, but the replacement accuracy of three-dimensional shape data in longitudinal direction deteriorates
Solution Approach 1:
The invention extracts the harmful elements (holes and grooves) from the scanning jig end surface. By removing these features that interfere with accurate data replacement, the patent achieves both secure fixation through alternative means and high replacement accuracy in the longitudinal direction.
Solution Approach 2:
Instead of providing holes or grooves for attachment as in conventional designs, the patent inverts the approach by creating a solid end surface with an inclined plane. The fixation is achieved through the inclined surface geometry rather than through holes, thereby eliminating the interference with three-dimensional shape data replacement.
2Device complexity
If the scanning jig has conventional end surface configuration, then the structure is simple, but the replacement accuracy in rotational direction deteriorates
Solution Approach 1:
The patent applies asymmetry by designing the end surface with a specific inclined plane configuration rather than a symmetric or conventional flat surface. This asymmetric inclined surface provides unique positional determination in rotational direction, improving replacement accuracy while maintaining structural simplicity.
Solution Approach 2:
The invention introduces a new dimensional feature - the inclined plane angle - to the end surface configuration. This additional dimensional characteristic (the inclination angle) provides the necessary reference for rotational position determination without significantly increasing overall device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the replacement accuracy of three-dimensional shape data, particularly in the longitudinal direction, and rotational orientation, leading to improved fitting accuracy of dental abutments and artificial tooth roots.
Implementation Method 1
a magnet (13) arranged inside the cylindrical shape of the main body (11)
Data Source
AI summary
Provided is a scanning jig capable of improving replacement accuracy of three-dimensional data. Provided is a scanning jig 10 for attaching to an analog 20 embedded in a model or to an artificial tooth root 30 embedded inside an oral cavity, the scanning jig including: a main body 11 formed in a bottomed cylindrical shape provided with a bottom to one end portion; a fixation member 12 of which one end side is inserted inside the cylindrical shape of the main body and the other end side is fixated to the analog or the artificial tooth root; and a magnet 13 arranged inside the cylindrical shape of the main body, wherein the main body is not provided with a hole or a groove on one end surface on a bottom side of the bottomed cylindrical shape, and the end surface is provided with an inclined surface.