Dental Scanbody Curved Geometry Eliminates Light Reflection Artifacts
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Solution Overview
Problem
Current scanning technologies for dental implants face challenges such as artifacts and errors due to the interaction of light with flat surfaces, limited access, and reflective materials, leading to inaccurate measurement of position, direction, and rotation, which complicates the manufacturing of prosthetic components and requires post-processing corrections and the use of non-reflective coatings.
Innovation Solution
A scanbody with dual-taper geometry and rounded surfaces is designed to minimize reflections and improve data collection accuracy, using biocompatible materials like PEEK-ClassixTM white resin and machining instead of injection molding to enhance opacity and facilitate precise scanning without the need for opaque sprays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If flat surfaces are used on scanbody, then manufacturing is easier, but scanning accuracy deteriorates due to light reflections and artifacts
Solution Approach 1:
The scanbody replaces flat surfaces with curved surfaces, specifically a spherical upper portion and tapered cylindrical body. This curvature eliminates the light reflection artifacts that occur on flat surfaces during optical scanning, thereby improving scanning accuracy without significantly complicating the manufacturing process.
2Measurement precision
If opaque sprays or non-reflective coatings are applied, then scanning accuracy improves, but device complexity and manufacturing steps increase
Solution Approach 1:
The scanbody's curved geometry inherently prevents light reflection artifacts during scanning, eliminating the need for external opaque sprays or non-reflective coatings. The shape itself provides the necessary anti-reflective property, simplifying the overall scanning process and reducing device complexity.
3Measurement precision
If dual-taper geometry with rounded surfaces is used, then scanning accuracy improves, but manufacturing precision requirements increase
Solution Approach 1:
The dual-taper geometry featuring rounded surfaces and spherical portions is designed to be manufactured using conventional CNC machining processes. The curved surfaces are intentionally chosen because they are well-suited to machining operations, balancing scanning accuracy requirements with manufacturability.
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
The dual-taper geometry scanbody increases scanning accuracy and reliability, reducing error correction routines and enabling precise determination of implant position and rotation, thus improving the manufacturing of prosthetic structures and eliminating the need for post-processing corrections and non-reflective coatings.
Implementation Method 1
The dual-taper geometry scanbody minimizes reflections and improve data collection accuracy
Data Source
Figure 1A~2B
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Figure 7A~8B
AI summary
METHOD FOR MANUFACTURING SCANBODY DEVICE is a scanbody (10, 20, 30, 40, 50, 60), which is comprised of a base (16, 26, 36, 46, 56, 66) which is adapted for fitting in an anti-rotation geometry of a dental implant and a body (12, 22, 32, 42, 52, 62) set for scanning in which the lateral surface of a body has geometrical elements (121, 122, 221, 222, 321, 322, 421, 422, 521, 522, 621, 622) which allow the identification of information regarding scanbody position, direction and rotation, characterized by the fact that the body lateral surface does not present any flat portion and has a first opposing trunconical (121, 221, 321, 421, 521, 621) element, base-to-base, and a secondary trunconic (122, 222, 322, 422, 522, 622) element and concave surfaces (123, 223, 323, 423, 523) disposed at the side, including a hole (5) as an option, is adapted to get the fixing screw.