Journal of Oral Medicine and Pain

Korean Academy of Orofacial Pain and Oral Medicine (대한안면통증구강내과학회)
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The Influence of Local Anesthesia of Canine Periodontal Ligament on Electromyographic Activity of Jaw Elevator Muscles during Canine Guidance

견치유도군에서 견치치주인대의 국소마취가 저작근활성도에 미치는 영향

  • Yang-Soo Jung (Dept. of Oral Diagnosis & Oral Medicine, School of Dentistry, Kyungpook National University) ;
  • Jin-Soo Kim (Dept. of Oral Diagnosis & Oral Medicine, School of Dentistry, Kyungpook National University) ;
  • Jae-Kap Choi (Dept. of Oral Diagnosis & Oral Medicine, School of Dentistry, Kyungpook National University)
  • Published : 1988.03.01
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Abstract

The author studied maximum clenching EMG activities of temporalis anterior and masseter muscle during canine guidance and centric occlusion. It was performed before and after anesthesia of maxillary and mandibular canines. The 22 normal subjects (15 males and 7 females) who had healthy maxillary and mandibular canines were selected. Their occlusal contact scheme was canine guidance during movement and they did not have temporomandibular disorder. The results were as follows : 1. The maximum clenching EMG activities of temporalis anterior and masseter muscle during guidance were less than those during centric occlusion. 2. After left maxillary and mandibular canines were anesthetized with 2% lidocanine with 1:100,000 epinephrine, the maximum clenching EMG acivities of temporalis anterior and masseter muscle during left canine guidance were greater than those before anesthesia of left maxillary and mandibular canines(p<0.01) 3. The maximum clenching EMG activities of temporalis anterior and masseter muscle during right guidance were not significantly different between before and after anesthesia of left maxillary and mandibular canines(p>0.05).

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