Abstract
Human race's two walking and stress management were described last time. There is a possibility of the easy deviation and doing the mandibular position by the cuspal interference when a powerful occlusal pressure joins at nighttime bruxism, and the state of malocclusion exists at this time. The human race is two walking, there is a head in the uppermost part, and because this musculus skeletl and antigravity muscle, is ..support.. extremely unstable. Therefore, the distortion is caused in the shoulder and the lumbar vertebra in addition by the head's this balance's collapsing when the mandibular position shifts, and inclining, too. The trouble is caused by this in the nervous system, the internal secretion system, and the blood circulatory system and various indefinite complaints appear. The muscle of mastication and the cervix part muscle might be strained by bruxism and, of course, it become the cause of the shoulder learning by experience and headache. An appropriate mandibular position, an excellent anterior guidance, and Vertical support that supports it are necessary and indispensable to prevent and to improve this.
An inherited element and an acquired element are considered about malocclusion that is the cause of the deviation of the mandible this time.
