Bite Registration Device for Precise Digital Prosthesis Fabrication
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Solution Overview
Problem
Conventional methods for creating dental prostheses require multiple office visits and material waste, lack accuracy in bite registration, and are not suitable for digital fabrication, especially when replacing a quadrant or full arch of teeth.
Innovation Solution
A bite registration device that digitally records the spatial relationship of maxillary and mandibular dental arches to the Frankfort plane, using custom-sized trays with grooves and perforations to secure impression material, and incorporates mechanical and AI-controlled mechanisms for precise jaw alignment data capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional methods are used for creating dental prostheses, then multiple office visits are required, but this increases loss of time and reduces productivity
Solution Approach 1:
The device performs preliminary bite registration and digital arch scanning during the same appointment, capturing all necessary data before leaving the office. This eliminates the need for multiple visits by completing the registration phase in advance, allowing the prosthesis to be fabricated digitally without requiring additional patient appointments.
Solution Approach 2:
The patent replaces conventional mechanical impression taking with digital scanning and recording systems. The bite registration device uses digital sensors and cameras to capture jaw relationships and arch forms, substituting traditional physical impressions with digital data collection, thereby reducing the number of visits needed and improving overall efficiency.
2Manufacturing precision
If conventional bite registration methods are used, then accuracy is insufficient for digital fabrication, but this compromises manufacturing precision
Solution Approach 1:
The device replaces mechanical bite registration with digital imaging and sensor-based measurement systems. Cameras and sensors capture the spatial relationship between maxillary and mandibular arches, creating precise digital models that can be directly used for fabrication, thereby achieving both high accuracy and compatibility with digital manufacturing processes.
Solution Approach 2:
The patent creates digital copies of the patient's dental arches and bite relationship through scanning and imaging. These digital representations accurately replicate the spatial relationships and can be directly used for prosthesis fabrication, eliminating the need for physical models and ensuring high manufacturing precision while streamlining the workflow.
3Ease of manufacture
If conventional materials and methods are used, then material waste occurs, but this increases loss of substance and reduces ease of manufacture
Solution Approach 1:
The patent substitutes traditional material-based impression taking with digital data capture. By using scanners and sensors to record the patient's anatomy and bite relationship, the system eliminates the need for disposable impression materials and physical models, thereby reducing material waste while enabling direct digital fabrication of the prosthesis.
Solution Approach 2:
The device creates digital copies of the patient's dental structures instead of relying on physical materials. These digital models can be directly exported for fabrication, eliminating the need for physical impression materials and reducing waste. The digital copying process also improves ease of manufacture by enabling direct translation to manufacturing files.
4Reliability
If custom-sized trays with grooves and perforations are used, then impression material is securely retained, but this increases device complexity
Solution Approach 1:
The trays incorporate locally optimized features such as grooves and perforations at specific locations to secure impression material. These localized structural modifications provide reliable material retention without requiring complex overall tray design, maintaining simplicity while achieving the desired functional outcome.
Data Source
AI summary
A bite registration device and method for creating a dental prosthesis, the bite registration device comprising a fixed housing having a bottom surface and a top surface that defines a cavity that houses a yoke assembly and a rotational control assembly. A base plate connected to the bottom surface of the fixed housing, and a lower impression tray to hold a first amount of removable impression putty, attached to the bottom surface of the fixed housing, wherein the rotational control assembly controls the movement of the lower impression tray. An upper impression tray to hold a second amount of removable impression putty, attached to the top surface of the fixed housing, wherein the yoke assembly controls the movement of the lower impression tray. A bite registration device controller for regulating alignment of the upper impression tray and the lower impression tray.