The Effect of Occlusal Splint on the Masseteric Silent Period in Patients with TM disorders

교합안전장치가 측두하악장애 환자의 교근의 휴지기에 미치는 영향

  • Do, Young Hwan (Department of Dentistry, Graduate School Kyungpook National University) ;
  • Kim, Chin Soo (Department of Dentistry, Graduate School Kyungpook National University) ;
  • Choi, Jae Kap (Department of Dentistry, Graduate School Kyungpook National University)
  • 도영환 (경북대학교 대학원 치의학과 구강진단학.치과방사선학교실) ;
  • 김진수 (경북대학교 대학원 치의학과 구강진단학.치과방사선학교실) ;
  • 최재갑 (경북대학교 대학원 치의학과 구강진단학.치과방사선학교실)
  • Published : 1987.12.30

Abstract

The purpose of this study was to evaluate the effect of occlusal splint on the electromyographic silent period duration of masseter muscle in patients with TM disorders. The author measured the Helkimo dysfunction index and masseteric silent period duration before and after 4 weeks splint therapy in 15 patients with TM disorders. The results were as follow: Before splint therapy, the mean durations of masseteric silent period in 15 patients with TM disorders were 50.7msec in left and 50.5msec in right. After 4 weeks splint therapy, the mean durations of masseteric silent period were 25.4msec in left and 26.5msec in right. In the correlation between Helkimo dysfunction index and masseteric silent period duration in before treatment, correlation coefficient is 0.675, p.<0.01. There is statistically significant correlation between Helkimo dysfunction index and masseteric silent period duration. Helkimo dysfunction index was significantly decreased after 4 weeks splint therapy (P<0.01) The masseteric silent period duration was significantly decreased after 4 weeks splint therapy (p<0.01).

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