근이완 장치가 두개하악장개 환자에 미치는 영향에 대한 임상 및 근전도학적 연구
Appliance on Craniomandibular Disorder Patients. Clinical and Electromyographic Study of the effects of Muscle Relaxation
서봉직, 고명연,
소속 상세정보
서봉직 ( ) - 부산대학교 치과대학 구강진단학
고명연 ( ) - 부산대학교 치과대학 구강진단학
KMID : 0355219900150010061
Abstract
They were treated with MRA and active range of motion, pain and mouth opening limitation
with EM2( Myo-tronics Co., Seattle, U.S.A.) before and after MRA therapy. The 11 patients
The author studied the changes of subjetcive, objective symptoms and muscle activities were checked at each visit for 6-8 weeks. Electromyographic activities were measured in both anterior lobe of temporalis and
middle fibers of masseter at the position in rest, clenching and mastication.
The obtained results were as follows
1. There were significant decrease in pain and mouth opening limitation and significant
increase in active range of motion after MRA therapy.
2. The muscle activities tended to decrease in general, especially in the temporal and masseter muscles on clenching and in the masseter on mastication after MRA therapy.
3. There were no significant differences in muscle activities between affected and unaffected side, but there was significant difference in temporal muscle on clenching after therapy.
4. There were no significant differences in active range of motion, pain and mouth opening limitation between acute and chronic groups.
5. There were more significant decrease in muscle activities of the affected side in acute
group than th^se in chronic group.
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