Intraoral Scan Trajectory for Complete 3D Dental Models
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dental scanning methods often result in incomplete or inaccurate 3D models of the dental site, leading to suboptimal design of dental prosthetics and orthodontic treatments due to undefined or poorly defined preparation areas, which can cause collisions and improper fit, and may require re-scanning or reworking of the dental site.
Innovation Solution
An intraoral scanning system with multiple image sensors that generate 2D images, merged into a combined image, and a computing device that projects and smooths these images onto surfaces to create accurate 3D models, using machine learning for enhanced precision and trajectory determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional single-view 3D modeling methods are used, then the modeling process is simple, but the model completeness and accuracy deteriorate due to undefined preparation areas and poor image quality
Solution Approach 1:
The patent divides the dental site into multiple preparation areas (first preparation area, second preparation area, etc.) and captures each area separately using multiple image sensors positioned at different locations. This segmentation allows for focused, high-quality imaging of each preparation area while maintaining overall model completeness.
Solution Approach 2:
The patent merges images captured by multiple image sensors from different positions and angles into a single comprehensive combined image. This merging process integrates information from all sensors to create a complete and accurate representation of the entire dental site, including all preparation areas.
2Loss of information
If multiple image sensors are used to capture complete dental site information, then the model completeness improves, but the image processing complexity and time increase
Solution Approach 1:
The patent performs preliminary actions by capturing all necessary images from multiple sensors simultaneously or in rapid sequence before processing. The combined image is generated by integrating data from all sensors in a coordinated manner, ensuring that no preparation area is missed while minimizing the time required to gather complete information.
3Manufacturing precision
If traditional scanning methods are used, then the equipment simplicity is maintained, but the prosthetic design quality deteriorates due to collisions and improper fit
Solution Approach 1:
The patent applies local quality by positioning image sensors at specific locations (first image sensor, second image sensor, etc.) to capture detailed images of specific preparation areas. Each sensor is strategically placed to optimize the capture of critical features such as finish lines, marginal ridges, and preparation geometry, ensuring high-quality data for prosthetic design.
Data Source
AI summary
Embodiments relate to techniques for real-time and post-scan visualization of intraoral scan data, which may include 3D images, 3D scans, 3D surfaces and/or 3D models. In one embodiment, an intraoral scanning system comprises a plurality of image sensors to periodically generate a set of intraoral two-dimensional (2D) images, wherein for each set of intraoral 2D images each image sensor of the plurality of image sensors is to generate an intraoral 2D image, and wherein relative positions and orientations of the plurality of image sensors are known. The intraoral scanning system further comprises a computing device, wherein the computing device is to perform the following for each set of intraoral 2D images: generate a combined intraoral image based on merging the set of intraoral 2D images together during scanning; and output the combined intraoral image to a display.