저작압 측정장치의 개발과 치근단 질환 진단에의 응용 = Development of a new bite force measurement device and its application in the diagnosis of periapical disease

국문 초록 (Abstract)

본 연구의 목적은 압저항 감지 센서를 이용해 새롭게 개발한 저작압 측정 장치를 이용한 저작압의 객관적인 측정과, 이를 통한 치근단 질환의 진단에의 유용성을 평가하는 것이다. 본 장치의 원리는, 압저항 감지 센서에 힘이 가해지면 저항이 감소하고 이를 출력 전압의 형태로 적절한 처리 과정을 거쳐 LCD 모니터에 출력하는 것이다. 장치에 가해지는 힘과 출력값의 관계를U-Mechanics Analyser (IB Systems, Seoul, Korea)를 이용하여 분석하였다. 치근단 치주염을 가진 치아와 그렇지 않은 반대편 치아의 저작압을 측정하여 비교하였다. 출력값은 힘의 로그함수, 또는 힘은 출력값의 지수함수로 표현되었다. 치근단 치주염을 가진 치아의 저작압이 상대적으로 낮았으며, 저작압 감소율은 18.5 ~ 40.7% 범위였다. 이상의 결과로 미루어 볼 때, 새롭게 개발한저작압 측정 장치를 이용하여 개개 치아의 저작압을 정량적으로 측정할 수 있으며, 이를 치근단 질환의 진단에 유용하게 사용할수 있을 것으로 사료된다.

다국어 초록 (Multilingual 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.

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