Magnetic Mandible Movement Measurement System
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for imaging and simulating the movement of the mandible relative to the maxilla in dentistry are inaccurate due to indirect measurement, limiting the precise representation of mandible movement, which is crucial for manufacturing dentures and other therapeutic settings.
Innovation Solution
A system utilizing a transmitter coil and sensors attached to the mandible, with a sensor positioning device that sets reference planes on the skull, allowing for precise calculation and simulation of mandible movement relative to the maxilla without the need for articulators, using magnetic field sensors to record and process movement data for three-dimensional imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If indirect measurement methods (face-bows, auxiliary means) are used to measure mandible movement, then the measurement can be performed, but the measurement precision is low due to indirect measurement and assumptions required for simulation
Solution Approach 1:
The patent replaces indirect mechanical measurement methods (face-bows, articulators) with a direct magnetic field-based measurement system. Sensors detect the position of magnets attached to the mandible and maxilla, eliminating the need for mechanical auxiliary means and assumptions, thereby achieving direct and accurate measurement of jaw movements.
Solution Approach 2:
The patent introduces magnets as intermediaries attached to the mandible and maxilla, which interact with magnetic field sensors to transmit position information. This intermediary approach enables direct measurement without complex mechanical auxiliary means while maintaining measurement accuracy.
2Loss of information
If conventional impression devices or intraoral scanners are used, then impressions of maxilla or mandible can be obtained, but the movement of the mandible toward the maxilla cannot be imaged
Solution Approach 1:
The patent enables continuous tracking of mandible movement throughout the range of motion by maintaining magnetic field interaction between sensors and magnets during movement. This continuous measurement captures dynamic movement information that static impression methods cannot obtain, while keeping the procedure simple and non-intrusive.
3Manufacturing precision
If articulators are used to simulate mandible movement, then therapeutic positions can be set, but the simulation accuracy is limited due to indirect measurement and assumptions
Solution Approach 1:
The patent replaces mechanical articulator systems with a digital simulation approach. Magnetic field sensors directly measure mandible movement, and a computer processes the data to generate accurate digital models of jaw movement, eliminating the need for physical articulators and their associated assumptions, thereby improving precision while reducing complexity.
4Reliability
If indirect measurement methods are used, then measurement can be performed, but the reliability of movement simulation is reduced due to assumptions required
Solution Approach 1:
The patent replaces indirect mechanical measurement with direct magnetic field sensing, eliminating the chain of assumptions required in traditional methods. The magnetic sensors directly detect magnet positions, providing reliable and assumption-free movement data that improves both reliability and precision simultaneously.
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 system achieves high measurement accuracy for short and mastication movements, enabling precise simulation and therapeutic settings, allowing for direct production of dentures based on calculated condyle positions and movements.
Implementation Method 1
a transmitter coil for emitting a magnetic measurement field
Implementation Method 2
at least one sensor attached at the mandible (UK) of the patient
Data Source
AI summary
The disclosure relates to a system for recording, transferring and simulating a relative position and/or movement of a mandible relative to a maxilla, comprising: a transmitter coil for transmitting a magnetic measurement field; at least one sensor placed on the mandible and arranged in at least one holding device having a position marking for the sensor; a sensor positioning device provided for setting the axis-orbital plane and condylar points and comprising at least one sensor for capturing and emitting positional data; a data set of a relative movement of a mandible relative to a maxilla, the data set is generated from the sensor signals of the at least one sensor arranged on the mandible and from the positional data from the sensor signals from the sensor positioning device; and a computer for recording, processing and displaying the movement data from the data set from the sensors.