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咀嚼时由于形成牙尖嵌合,无法使用通常的方法测定(牙合)力。本研究使用压力应变(牙合)力计测定受测者的最大(牙合)力值,然后用肌电图仪测定最大(牙合)力的12.5％、25％、37.5％、50％、62.5％、75％和87.5％七个(牙合)力水平条件下双侧颞肌前部、颞肌后部、嚼肌共六个部位的肌电积分值。相关分析表明上述六个部位的肌电积分值之和与(牙合)力存在高度显著的正相关关系,由此建立的回归方程可用于在此时测试条件下由该受测者的肌电测值推算其咀嚼中的(牙合)力水平。
Due to the formation of a cusp tip during chewing, the occlusal force can not be measured using conventional methods. In this study, we measured the maximal occlusal force of the subjects using a stress-strain occlusal force meter and then measured the maximal occlusal force by using electromyography (12.5%, 25%, 37.5%, 50% 62.5%, 75% and 87.5% of the seven (occlusal) force levels of bilateral temporalis front muscle, temporal muscle, chewing muscles in a total of six parts of the EMG. Correlation analysis showed that there was a highly significant positive correlation between the sum of EMG scores of the above six parts and the occlusal force. The regression equation established by this method can be used to detect the EMG under the test condition at this time Measured projections of their chewing (occlusal) force level.