3D Scanner Data Integration for Dental Prosthetic Precision
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Solution Overview
Problem
Conventional 3D scanning in dental prosthetics faces inaccuracies due to manual production methods and difficulties in capturing precise data for interdental areas and metal parts, leading to suboptimal prosthetic fitting.
Innovation Solution
A data integration method for 3D scanners that combines scan data from a first scanner capturing the entire shape with a second scanner capturing partial shapes, converting both into 3D voxel data for precise supplementation, using scanners with adjustable angles and distances, and a handheld scanner for oral cavity scans.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a first scanner is used to capture the entire shape of the subject, then the overall scanning coverage is improved, but the precision of specific partial areas (interdental parts, metal parts) deteriorates
Solution Approach 1:
The scanning process is divided into two segments: a first scanner captures the entire shape of the subject to provide comprehensive coverage, while a second scanner focuses on specific partial areas requiring higher precision. The scan data from both scanners are then integrated, with the second scanner's high-precision data supplementing the first scanner's data in the interdental and metal parts regions, thereby resolving the contradiction between overall coverage and局部 precision.
2Ease of operation
If manual production methods are used for dental prosthetics, then the process is simple and easy to operate, but the manufacturing precision and fitting accuracy deteriorate
Solution Approach 1:
The invention creates a precise digital 3D copy of the patient's oral cavity by integrating scan data from both the first scanner (overall shape) and the second scanner (detailed partial areas). This digital model serves as an accurate replica that eliminates the errors inherent in manual production, while the automated data integration process maintains operational simplicity. The prosthesis is then manufactured based on this precise digital copy, achieving high fitting accuracy without complex manual procedures.
3Device complexity
If a single scanner is used for scanning, then the device complexity is low, but the measurement precision of metal parts and interdental areas deteriorates due to light reflection issues
Solution Approach 1:
The invention merges the capabilities of two scanners: the first scanner provides comprehensive scanning coverage for the entire oral cavity, while the second scanner specializes in capturing high-precision data from metal parts and interdental areas that suffer from light reflection issues. By combining the scan data from both scanners and integrating them into a unified model, the system achieves high measurement precision for challenging areas while maintaining reasonable device complexity through the coordinated use of two scanners rather than requiring a single overly complex device.
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
This method enhances data precision, allowing for more accurate prosthetic treatments by compensating for the limitations of each scanner and providing detailed, overlapping 3D volume data for improved fitting.
Implementation Method 1
a first scanner configured to scan a subject to generate first scan data... a second scanner configured to scan a subject to generate second scan data
Implementation Method 2
an optical element configured to illuminate the subject by refracting or reflecting light generated from the light irradiation unit, and cause light reflected from the subject to enter the imaging unit
Data Source
AI summary
According to the present disclosure, partial precision shape data is added to overall data by combining scan data obtained by a first scanner and a second scanner, respectively, and thus, missing data in a scan of the first scanner is supplemented by a scan of the second scanner. There is an advantage of being able to derive highly reliable data through such a supplementary process, and a user can provide a more suitable treatment to the patient.