Oudet C, Petrovic A, Garcia P
INSERM, U 213, Faculté de Médecine, Strasbourg, France.
Reprod Nutr Dev (1980). 1988;28(3B):795-803. doi: 10.1051/rnd:19880514.
Masticatory muscles mediate the action of functional orthopedic appliances on mandible growth. When young rats were treated for four weeks with a postural hyperpropulsor of the mandible, an appliance designed to increase condylar cartilage growth rate, the proportion of fast non-fatigable fibres in the lateral pterygoid muscle increased significantly. Concomitantly, the amount of slow-myosin light chains increased in fibre extracts. This slow myosin originated from IIA fibres. By functional orthopedic treatment, the lateral pterygoid muscle was enriched in less fatigable fibres; the changes observed in the lateral pterygoid muscle were close to changes observed in other muscles after training.
咀嚼肌介导功能性矫形器对下颌骨生长的作用。当用一种下颌姿势性前伸矫治器（一种旨在提高髁突软骨生长速率的矫治器）对幼鼠进行为期四周的治疗时，翼外肌中快速抗疲劳纤维的比例显著增加。同时，纤维提取物中慢肌球蛋白轻链的量增加。这种慢肌球蛋白起源于IIA型纤维。通过功能性矫形治疗，翼外肌中抗疲劳纤维增多；在翼外肌中观察到的变化与训练后在其他肌肉中观察到的变化相近。
