Hickman D M, Cramer R
School of Dentistry, West Virginia University Health Sciences Center North, Morgantown, USA.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1998 Jan;85(1):18-23. doi: 10.1016/s1079-2104(98)90392-4.
The purpose of this study was to determine a condylar position that permitted the greatest total temporalis and masseter muscle activity in maximum static clench.
Twenty normal adults, 9 women and 11 men, were evaluated to determine masseter and temporalis activity in maximum static clench with mandibular condyles in different therapeutic positions. Bimanually manipulated, leaf gauge, centric occlusion, and neuromuscular condylar positions were studied.
When mandibular condyles were placed anteroinferiorly in a neuromuscular position, total masticatory muscle recruitment was the greatest. In a bimanually manipulated or a leaf gauge position, mandibular condyles were positioned superoposteriorly, producing the least amount of muscle recruitment.
The result of any therapeutic position should be an improvement in muscle function. With respect to balance and activation, a neuromuscular condylar position proved to be the position capable of recruiting the greatest motor unit activity when compared with a bimanually manipulated position, a leaf gauge position, and a neuromuscular position.
本研究的目的是确定在最大静态紧咬时能使颞肌和咬肌总活动量最大的髁突位置。
对20名正常成年人（9名女性和11名男性）进行评估，以确定在下颌髁突处于不同治疗位置时最大静态紧咬时咬肌和颞肌的活动情况。研究了双手操作、叶状规、正中咬合和神经肌肉髁突位置。
当下颌髁突置于神经肌肉位置的前下方时，咀嚼肌的总募集量最大。在双手操作或叶状规位置时，下颌髁突位于后上方，肌肉募集量最少。
任何治疗位置的结果都应是肌肉功能的改善。就平衡和激活而言，与双手操作位置、叶状规位置和正中咬合位置相比，神经肌肉髁突位置被证明是能够募集最大运动单位活动的位置。
