Abstract
This paper presents the design and development of a low cost and reliable maximal voluntary bite force sensor which can be manufactured in-house by using an acrylic laser cutting machine. The sensor has been designed for ease of fabrication, assembly, calibration, and safe use. The sensor is capable of use within an hour of commencing production, allowing for rapid prototyping/modifications and practical implementation. The measured data shows a good linear relationship between the applied force and the electrical resistance of the sensor. The output signal has low drift, excellent repeatability, and a large measurable range of 0 to 700 N. A high signal-to-noise response to human bite forces was observed, indicating the high potential of the proposed sensor for human bite force measurement.
Highlights
The maximum bite force (MBF) and maximal voluntary bite force (MVBF) of the human jaw can correlate to the wellbeing and oral health of the patient [1,2,3,4]
Bite force has been employed as an indicator for patients with bruxism, where the patient is able to wear a prescription splint to sleep that has an integrated sensor and circuit to record and relay important information on the patient’s jaw activity while sleeping [6]
The system in [2] has employed a bite sensing device using a strain gauge connected to two load bearing beams in order to measure the MVBF
Summary
The maximum bite force (MBF) and maximal voluntary bite force (MVBF) of the human jaw can correlate to the wellbeing and oral health of the patient [1,2,3,4]. There have been a large number of sensors developed to measure a patient’s bite force or MVBF One such example is T-Scan—a commercially available system which uses a pressure sensitive sheet sensor that is capable of assisting dentists perform a full occlusive analysis on their patients. The system in [2] has employed a bite sensing device using a strain gauge connected to two load bearing beams in order to measure the MVBF This system is still very bulky in both its size and mass, and its fabrication has involved complex steps, thereby constraining its utilization for specific on-site applications. We have successfully demonstrated the use of the sensor for accurate real-time measurement of human bite forces with high signal-to-noise ratio These results indicate our proposed sensors’ significance for ubiquitous bite force sensing applications
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