표제지
목차
I. 서론 7
II. 재료 및 방법 9
1. 대상 선정 및 고주파치료 9
2. 근활성도 측정 9
3. EMG parameter의 분석 10
4. 통계학적 분석 11
III. 결과 14
IV. 고찰 21
V. 결론 25
VI. 참고문헌 26
ABSTRACT 29
Table 1. Preoperative observations of each variable. 20
Table 2. Comparing the changes of each variable between group at observation point. 20
Figure 1. Point of radiofrequency(RF) application in each group. Grouping was based on the number of RF applications. (1 to 4: A to D). 12
Figure 2. Muscle activity recording system. Two electrodes were attached to the masseter muscles. One electrode was placed on the back as a ground. During the mastication. EMG signal was recorded. 12
Figure 3. Transformation of raw data. When raw data was analyzed, 100 bite events were detected automatically. Right top: Time domain parameter (peak value, mean value, area, width) and the mean and standard deviation of these four parameters were calculated frome each bite. Bottom right: Frequency... 13
Figure 4. There were shown the change in peak voltage (A). the root mean square (RMS) of the action potential (E). the area of voltage (e). and the area of frequency CD) after RF therapy. When grouped as two (one was single and double and the other was triple and quadruple). the area of voltage and the... 19