Canay S, Cindaş A, Uzun G, Hersek N, Kutsal Y G
Faculty of Dentistry, Department of Prosthodontics, University of Hacettepe, Ankara, Turkey.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1998 Jun;85(6):674-9. doi: 10.1016/s1079-2104(98)90034-8.
The purpose of this study was to compare the effectiveness of splint therapy on the electromyographic activity of masticatory muscles (anterior temporalis and masseter) before and after the application of a muscle relaxation splint. Electromyography recordings from the masseter and anterior temporalis muscles were analyzed quantitatively during maximal biting in the intercuspal position both before and after treatment without a splint. Fourteen patients whose chief complaint was masticatory muscle pain were selected for the study. After the initial evaluations muscle relaxation splints were applied, and the patients were instructed to use the splints for 6 weeks. Surface electromyographic recordings were taken from each patient before the beginning of clinical therapy and after 6 weeks of wearing the splints. The data obtained were analyzed through paired sample t tests and Wilcoxon's signed rank tests. The results of the study were as follows: (1) the electromyographic activity of the two muscles during maximal biting was not markedly changed after the muscle relaxation splint was used; and (2) the changes observed in electromyographic activity of the involved and noninvolved sides were insignificant as well.
本研究的目的是比较肌肉松弛夹板应用前后，夹板疗法对咀嚼肌（颞肌前束和咬肌）肌电活动的效果。在不使用夹板治疗前后的牙尖交错位最大咬合力时，对咬肌和颞肌前束的肌电图记录进行定量分析。选取了14例以咀嚼肌疼痛为主诉的患者进行研究。在初始评估后应用肌肉松弛夹板，并指导患者使用夹板6周。在临床治疗开始前和佩戴夹板6周后，对每位患者进行表面肌电图记录。通过配对样本t检验和Wilcoxon符号秩检验对获得的数据进行分析。研究结果如下：（1）使用肌肉松弛夹板后，最大咬合力时两块肌肉的肌电活动无明显变化；（2）患侧和非患侧肌电活动的变化也不显著。
