Maxillofacial Plastic and Reconstructive Surgery
- Volume 18 Issue 4
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- Pages.652-672
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- 1996
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- 2288-8101(pISSN)
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- 2288-8586(eISSN)
CHANGES OF SENSORY AND SOMATOSENSORY EVOKED POTENTIALS FOLLOWING A NEEDLE INJURY ON THE INFERIOR ALVEOLAR NERVE IN RATS
백서 하치조 신경 손상에 따른 감각 유발전위와 체성감각 유발전위의 변화에 관한 연구
- Woo, Seung-Chel (Dept. of Oral & Maxillofacial Surgery, School of Dentistry, Wonkwang University) ;
- Kim, Soo-Nam (Dept. of Oral & Maxillofacial Surgery, School of Dentistry, Wonkwang University) ;
- Lee, Dong-Keun (Dept. of Oral & Maxillofacial Surgery, School of Dentistry, Wonkwang University) ;
- Cheun, Sang-Woo (Dept. of Dental Physiology, School of Dentistry, Wonkwang University)
- 우승철 (원광대학교 치과대학 구강악안면외과학교실) ;
- 김수남 (원광대학교 치과대학 구강악안면외과학교실) ;
- 이동근 (원광대학교 치과대학 구강악안면외과학교실) ;
- 천상우 (원광대학교 치과대학 구강생리학교실)
- Published : 1996.12.31
Abstract
Dysfunction of the inferior alveolar nerve may result from trauma, diseases or iatrogenic injury. The development and refinement of an objective method to evaluate this clinical problem is highly desirable and needed, especially concerning for an increasing medico-legal issue. Evoked potential techniques have attracted considerable attention as a means of assessing the function and integrity of nerve pathways. The purpose of this study was to characterize the Sensory Evoked Potentials(SEPs) and Somatosensory Evoked Potentials(SSEPs) elicited by electrical stimulation of mental nerve. SEPs and SSEPs were measured and analyzed statistically before and after needle injury on the inferior alveolar nerve of Sprague-Dawalye rats. Measuring SEPs was more sensitive in evaluation of the recovery of sensory function from inferior alveolar nerve injury then measuring SSEPs but we measured SSEPs in the hope of providing a safe, simple and objective test to check oral and facial sensibility, which is acceptable to the patient. We stimulated mental nerve after needle injury on the inferior alveolar nerve and SEPS on the level of mandibular foramen and SSEPs on the level of cerebral cortex were recorded. Threshold, amplitude, and latency of both of SEPs and SSEPs were analyzed. The results were as follows ; 1. Threshold of SEPs and SSEPs were