Clinical and Electromyographic Study of the Effects of Ultrasonic Wave and Microwave Diathermy Treatment on the Craniomandibular Disorder Patients

두개하악장애 환자에 대한 초음파와 극초단파 심부투열치료 효과의 임상 및 근전도학적 연구

This study was performed to observe the effect of micro-wave diathermy and ultrasonic-wave diathermy on the craniomandibular disorder patients. 19 patients were classified into 12 acute and 7 chronic groups according to the duration of 6 months. They were treated with micro-wave diathermy and ultrasonic-wave diathermy for 2 weeks and pain, maximum comfortable opening, active range of motion were checked before and after therapy. Electromyographic activities of temporal and masseter muscles were also measured at physiologic rest position, clenching and mastication before and after therapy. The obtained results were as follows : 1. After treatment, pain were reduced and active range of motion and maximum comfortable opening were increased. 2. Temporoal and masseter muscle activities of post-treatment in rest position, clenching and mastication were lower than those of pre-treatment. 3. In rest position, temporal and masseter muscle activities of pre-treatment on affected sides were higher than those on unaffected sides, but there were no differences in muscle activities between affected ad unaffected sides on clenching and mastication in pre and post-treatment respectively. 4. There were no significant differences in active range of motion, pain and maximum comfortable opening between acute and chronic groups in pre and post-treatment but there were significant differences between pre-treatment and post-treatment in acute and chronic groups respectively. 5. Muscle activities of masseter and temporal muscles in acute and chronic patients were reduced in rest position after treatment.