Abstract
It was a well-known fact that spinal curvature is caused by a malocclusion. Although we know those fine reports by occulusal treatments to be in combination with chiropractic or kinesitherapy, it is very difficult to obtain standard view for the various skill of operator and the spontaneous effort of patients.
On the other hand, about treatment of cervicobrachial disease by the orthopedics, cervical traction by using Glisson sling, that has support parts on the occipital and mandible, became commonplace. Its sling was difficult to be maintained rest condition to the craniocervical muscles, because mastication muscles are altered hyper-tonus for mandibular reflexs, such as aperture reflex, occulsal reflex and mastication reflex. Especially, those patients derived from malocclusion, have almost a problem at the temporomandibular joint (TMJ), and the TMJ disease might be aggravated by compression of the mandible. Therefore, a new designed sling (Morisawa sling) that is not supported the mandible, will be required for cervical traction.
On retrognathism 2cases, Morisawa sling was used concomitantly as the supplementary means of occulusal treatment. Those patients were discussed to compare by lateral cephalometric evaluation of the alteration of the mandibular position, the hyoid position and the cervical alignment between pre and post-treatment with natural craniocervical posture. I would like to introduce this new sling, because the patients achieved a good result with relatively short treatment period.
