简介：
Overview
This article presents a protocol for measuring distortion in digital impressions obtained from intraoral scanners. The method utilizes a 3D-printed metal phantom with standard geometries to evaluate the accuracy of these scanners.
Key Study Components
Area of Science
- Dental technology
- Intraoral scanning
- Measurement protocols
Background
- Intraoral scanners can introduce distortion in dental arch data.
- Current methods for evaluating distortion are limited.
- There is a need for improved protocols to assess scanner accuracy.
- This study introduces a new coordinate system extraction protocol.
Purpose of Study
- To provide a reliable method for measuring distortion in intraoral scans.
- To enhance the evaluation of intraoral scanners available on the market.
- To demonstrate the effectiveness of the new protocol using a reference sphere.
Methods Used
- Coordinate system extraction protocol.
- Reverse engineering reference sphere for transformation.
- Analysis of distortion in x, y, and z directions.
- Demonstration by a laboratory technician.
Main Results
- The new protocol effectively measures distortion in intraoral scans.
- Results show improved accuracy over best-fit alignment methods.
- Demonstrated method can be applied to various intraoral scanners.
- Provides a standardized approach for future evaluations.
Conclusions
- The protocol offers a significant advancement in assessing intraoral scanner accuracy.
- It can help improve the quality of dental impressions.
- Future studies can build on this method for further enhancements.
What is the main focus of this study?
The study focuses on measuring distortion in digital impressions from intraoral scanners.
How does the new protocol improve upon existing methods?
It provides a more accurate analysis of distortion using a reference sphere.
Who demonstrates the protocol in the article?
Dan Young Kim, a technician from the laboratory, demonstrates the procedure.
What are the key components of the new protocol?
The protocol includes coordinate system extraction and distortion analysis in three dimensions.
Why is measuring distortion important?
Measuring distortion is crucial for ensuring the accuracy of dental impressions and improving patient outcomes.
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