Wood W W, Tobias D L
J Prosthet Dent. 1984 Mar;51(3):394-6. doi: 10.1016/0022-3913(84)90229-4.
Maximum clenching on an equilibrated occlusal splint yielded an increase of 17% in overall muscle activity over that of maximum intercuspation contributed mainly by masseter muscles. Maximum clenching on an anterior occlusal splint yielded a decrease of 13% in overall muscle activity compared with that of an equilibrated occlusal splint. When maximum clenching was performed with six left-sided teeth removed from contact while the left second molar remained in contact, there was no significant change in muscle activity when compared with that of an equilibrated occlusal splint. When left-sided muscles were compared with right-sided muscles for the same situation, there was no significant change. When maximum clenching was performed with all left-sided teeth removed from contact, there was a decrease of 21% in overall muscle activity compared with that of an equilibrated occlusal splint. When left-sided muscles were compared with right-sided muscles for the same situation, there was no significant change. Changes in the number of tooth contacts did not cause changes in the overall muscle activity during maximum clenching. Changes in the position of the tooth contacts altered the overall muscle activity during maximum clenching. Changes in occlusal contact symmetry did not cause changes in symmetry of muscle pairs during maximum clenching. Unilateral support produced the subjective response of pressure on the contralateral TMJ during maximum clenching.
在平衡咬合夹板上进行最大紧咬时，与最大牙尖交错位相比，总体肌肉活动增加了17%，这主要由咬肌贡献。与平衡咬合夹板相比，在前牙咬合夹板上进行最大紧咬时，总体肌肉活动降低了13%。当在左侧六颗牙齿脱离接触而左侧第二磨牙仍保持接触的情况下进行最大紧咬时，与平衡咬合夹板相比，肌肉活动无显著变化。在相同情况下比较左侧肌肉和右侧肌肉时，无显著变化。当所有左侧牙齿都脱离接触进行最大紧咬时，与平衡咬合夹板相比，总体肌肉活动降低了21%。在相同情况下比较左侧肌肉和右侧肌肉时，无显著变化。牙齿接触数量的变化在最大紧咬过程中未引起总体肌肉活动的改变。牙齿接触位置的变化在最大紧咬过程中改变了总体肌肉活动。咬合接触对称性的变化在最大紧咬过程中未引起肌肉对之间对称性的改变。单侧支撑在最大紧咬过程中产生了对侧颞下颌关节受压的主观感受。
