Design and evaluation of a Force Sensing Resistor based bite force measuring device
by U. Thongudomporn, P. Smithmaitrie, V. Chongsuvivatwong, A.F. Geater
International Journal of Biomedical Engineering and Technology (IJBET), Vol. 4, No. 1, 2010

Abstract: A Force Sensing Resistor (FSR) based bite force measuring device has been developed to determine human Maximum Bite Force (MBF) generated from a group of posterior teeth, using inexpensive parts and common laboratory electronic instruments. The relationship between applied force and sensor output fitted well with a polynomial regression equation. The mean ± SD of the error was 3.9 ± 3.4% and that of the coefficient of variation was 2.2 ± 0.5%. The mean maximum hysteresis was 13.36 ± 2.72 mV. Unilateral MBF measured by this instrument on 80 adolescents was 692 ± 152.9 N in males and 613 ± 180.2 N in females. Clinical test-retest repeatability was favourable (r = 0.88 − 0.92). This FSR sensor could be useful for the determination of MBF in clinical and field research work.

Online publication date: Sat, 31-Jul-2010

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