| Budget Amount *help |
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1988: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1987: ¥1,800,000 (Direct Cost: ¥1,800,000)
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| Research Abstract |
This research is to clarify a characteristic of a mandibular positione by neck reflex and EMG Biofeedback method comparing a mandibular position by a centric position, tapping position, intercuspal position etc. of general method in mandibular position.
It is to search whether a mandibular position by neck reflex and EMG Biofeedback method is able to become a standard of an occlusal position decision clinically on the basis of these result. Thereupon, a testee carried out the following experiment as the TMJ dysfunction patient and normal dentitition subjects. A mandibular position by Check bite method, was recorded about 5 kind of mandibular position of a centric position, tapping position, muscle position, myocentric position and also that of whis method. It carried out the measuring of a mandibular position by using a maxillary study model and Silicone Checkbite. The output of MKG was recorded to Data Recorder simaltinously and a madibular position was analized in three dimentions.
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m the mentioned experiment, a mandibular position by neck reflex and EMG Biofeedback is to anterior than a centric position and was doing an aspect posterior barely than tapping position. As for a muscle position, the data was located around that of neck reflex and EMG Biofeedback method, and big variations of studard deviation were shown than a mandibular position by this method levelly.It was seen as myocentric position is resembling to amandibular position by this method in vertical direction. With the experiment used the TMJ dysfunction patient , it was semilar trend to a mandibular position of normal subjects by neck reflex and EMG BIofeedback method. On the other hand, the variation of standard deviation was becoming larger in TMJ dysfunction patient. Neck and EMG biofeedback method in comparison with above mentioned general method was most stable in normal and TMJ dysfuction subject. The aforementioned experiment result was confirmed that a mandibular position by neck reflex and EMG Biofeedback method is clinical effective as the decision method of an occlusal position and be excellent to the characteristic of reproduction. Less
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