Mahony Derek
J Clin Pediatr Dent. 2005 Winter;29(2):93-8. doi: 10.17796/jcpd.29.2.lk435w70505t1668.
The primary objective of orthodontic treatment is the movement of teeth into a more ideal relationship, not only for aesthetic, but also for functional considerations. Another very important objective, often not given enough consideration, is the need to finish the case with the muscles of mastication in equilibrium. If muscle balance is not achieved, an endless procession of retainers is required for retention. In simple terms, if the occlusal forces in maximum intercuspation are unevenly distributed around the arch, tooth movement will most likely occur. Today, however, it is possible to simultaneously and precisely measure the relative force of each occlusal contact, the timing of the occlusal contacts and the specific muscle contraction levels. This technological breakthrough represents a paradigm shift in thinking and may improve orthodontic stability.
正畸治疗的主要目标是将牙齿移动到更理想的关系，这不仅出于美观考虑，也出于功能方面的考量。另一个非常重要但常常未得到充分重视的目标是，需要在咀嚼肌平衡的状态下完成治疗。如果没有实现肌肉平衡，就需要没完没了地佩戴保持器来维持效果。简单来说，如果在最大牙尖交错位时，牙合力在牙弓周围分布不均，牙齿很可能会发生移动。然而如今，已经能够同时精确测量每个咬合接触的相对力量、咬合接触的时间以及特定肌肉的收缩水平。这一技术突破代表了思维模式的转变，可能会提高正畸治疗的稳定性。
