Korean J Dent Mater.  2024 Mar;51(1):43-52. 10.14815/kjdm.2024.51.1.43.

Development of a new bite force measurement device and its application in the diagnosis of periapical disease

• Lee KH
• Lee IB

• KMID: 2555450
• DOI: http://doi.org/10.14815/kjdm.2024.51.1.43

Abstract

The purpose of this study was to develop a new bite force measurement device with a force sensing resistor (FSR), and to evaluate its usefulness in the diagnosis of periapical disease. The principle of this device is based on a decrease in resistance when force is applied to the sensor. The resistance is changed into voltage, processed and displayed on an LCD monitor. The relationship between the force applied to the device and the output value was analyzed using the U-Mechanics Analyser (IB Systems, Seoul, Korea). The bite forces of teeth with apical periodontitis and those without periodontitis on the opposite side were measured and compared. The output value was expressed as a logarithmic function of force, or the force was represented as an exponential function of output value. Teeth with apical periodontitis showed relatively lower bite force, and the reduction rate ranged from 18.5% to 40.7%. Based on these results, it is suggested that the newly developed bite force measurement device can quantitatively measure the bite force of individual teeth, and can be useful in the diagnosis of periapical disease.

Keyword

Bite force measurement device; Force sensing resistor; Periapical disease; Diagnosis