Mixed Reality Dental Templates for Precise Bracket Placement
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Solution Overview
Problem
The challenges in orthodontic treatment include imprecise manual bracket placement due to limited naked-eye accuracy, difficulty in accessing crowded teeth, and lengthy placement times, which can be exacerbated by patient restlessness, leading to suboptimal tooth positioning and increased treatment duration.
Innovation Solution
A system utilizing mixed reality devices and deep learning algorithms to create a virtual dental treatment template, enabling precise positioning of dental apparatus by scanning the physical arch, rendering it in mixed reality for real-time alignment, and maintaining alignment during installation, thereby reducing the need for custom molds and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual bracket placement is used by practitioners, then the process is simple and direct, but the positioning accuracy is limited to about +/â0.5 millimeters due to naked-eye limitations
Solution Approach 1:
The system performs preliminary scanning and virtual positioning of brackets on a digital model of the patient's dentition before actual placement. The practitioner plans bracket locations in advance using software that displays optimal positions, allowing precise measurement to be achieved before the physical placement action occurs.
Solution Approach 2:
The system creates a digital copy (scan) of the patient's physical dentition and performs bracket positioning on this virtual model. This copying allows precise virtual measurement and positioning to be achieved without directly manipulating the physical teeth, thereby improving accuracy while keeping the actual placement process simple.
2Measurement precision
If indirect bonding with custom dental templates is used, then bracket positioning accuracy is improved, but the device complexity and manufacturing time increase significantly
Solution Approach 1:
The system uses digital copying of the dentition model to create virtual templates for bracket positioning. Instead of physically fabricating custom templates, the system creates digital replicas and uses software to position brackets precisely on these virtual models, eliminating the need for complex physical template manufacturing while maintaining high accuracy.
Solution Approach 2:
The system replaces the mechanical process of physical template fabrication with a digital computing system. The software performs all positioning calculations and template creation virtually, substituting mechanical manufacturing operations with computational processes that are faster and more precise.
3Measurement precision
If lengthy manual measurement and placement procedures are used, then custom positioning can be achieved, but patient restlessness increases and treatment time extends
Solution Approach 1:
The system performs all measurements and positioning calculations in advance using digital models and software. The practitioner reviews pre-calculated optimal bracket positions before placement, allowing the actual placement to be done quickly without time-consuming manual measurements during the patient visit.
Solution Approach 2:
The system replaces time-consuming manual measurement processes with automated digital scanning and computational algorithms. The software rapidly calculates optimal bracket positions based on the digital dentition model, significantly reducing the time required compared to traditional manual measurement methods.
Data Source
AI summary
Methods and systems of the present disclosure are directed to providing dental treatment utilizing a mixed reality device. A patient's physical arch is scanned to produce a virtual arch that is then rendered in a computing environment for analysis and manipulation. Virtual targets, e.g., brackets, implants, etc., and/or a grid, are applied to the virtual arch to produce a virtual dental treatment template. The virtual dental treatment template is rendered in the mixed reality device and aligned the template with the physical arch of the patient in the mixed reality device. A practitioner is thus provided with this template and the patient within the same field of view, so that installation of dental apparatus can be simply a matter of aligning physical dental apparatus with the corresponding virtual dental apparatus. Positioning of the virtual target on the virtual arch and/or alignment of the virtual dental treatment template on the physical arch can be performed automatically via deep learning, Support Vector Machines, Decision Trees, etc. with the relevant data sets.