Digital 3D Model Comparison for Plaque Detection
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Solution Overview
Problem
Current methods for detecting plaque and other oral defects using stains are inaccurate and lack uniformity, failing to quantify plaque buildup and track changes over time, leading to ineffective evaluation of oral hygiene and health.
Innovation Solution
The use of intraoral scanners and imaging systems to generate and compare 3D models of teeth before and after staining, allowing for precise identification and tracking of defects, and improving computing efficiency by reducing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional staining methods are used to detect plaque, then the process is simple and quick, but the measurement precision and reliability are poor due to nonuniform staining and inability to quantify plaque buildup
Solution Approach 1:
The patent introduces a staining solution as an intermediary substance that selectively binds to plaque, making it visible and measurable. The stain acts as a mediator between the plaque (target) and the imaging system (detection device), enabling quantitative analysis through colorimetric or fluorescent properties that can be captured by intraoral scanners or cameras.
Solution Approach 2:
The patent utilizes color changes of the staining solution when it binds to plaque. Different concentrations or types of stains produce distinct color intensities or fluorescence levels that correlate with plaque quantity. This colorimetric approach transforms the invisible plaque into a visually detectable and quantifiable signal, improving measurement precision while maintaining relative simplicity.
2Reliability
If conventional staining methods are used, then the procedure is fast, but the ability to track changes over time is lost due to nonquantitative evaluation
Solution Approach 1:
The patent implements a feedback mechanism by capturing images of stained teeth at multiple time points and comparing them quantitatively. The system provides visual and numerical feedback to patients about their plaque reduction progress, enabling them to adjust their oral hygiene practices. This longitudinal tracking capability builds reliability by showing actual improvements or deterioration over time, while the rapid imaging process minimizes additional time requirements.
Solution Approach 2:
The patent creates digital copies (images and 3D models) of the patient's dentition with plaque at different time points. These copies serve as permanent records that can be stored, compared, and analyzed without requiring the patient to return for physical re-examination. The digital copying process enables efficient longitudinal tracking while reducing the time and resources needed for follow-up visits.
3Stability of the object's composition
If conventional staining is applied, then the process is straightforward, but uniformity across teeth and plaque areas is poor
Solution Approach 1:
The patent extracts the staining application step from manual brushing and delivers the stain directly to the patient's mouth in a controlled formulation (such as a chewable tablet, rinse, or spray). This extraction eliminates the variability introduced by manual application techniques while maintaining ease of use for the patient. The standardized delivery method ensures consistent stain distribution across all tooth surfaces.
Solution Approach 2:
The patent optimizes parameters of the staining solution such as concentration, viscosity, contact time, and chemical composition to achieve uniform penetration and binding across different tooth surfaces and plaque types. By carefully controlling these parameters, the system achieves consistent staining intensity that accurately reflects plaque distribution, transforming a previously variable process into a reliable quantitative measurement tool.
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 approach provides accurate and efficient detection and tracking of oral defects, enhancing dental treatment by quantifying plaque and other issues, and improving patient hygiene monitoring.
Implementation Method 1
an intraoral scanner or other imaging system to generate an initial color three-dimensional (3D) model of the patient's teeth
Data Source
AI summary
A method for dental treatment may include generating an initial digital model of a patient's oral cavity and generating a first updated digital model of the patient's oral cavity, the first updated digital model including data representing stained locations on the patient's oral cavity. The method may also include comparing the initial digital model to the first updated digital model to identify locations of an oral problem.