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A Study of Current Perception Threshold of Trigeminal Nerve after Tooth Implantation

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ÀÓÇö´ë, ÀÌÁ¤Çö, ÀÌÀ¯¹Ì,
¼Ò¼Ó »ó¼¼Á¤º¸
ÀÓÇö´ë ( Lim Hyun-Dae ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­³»°úÇб³½Ç
ÀÌÁ¤Çö ( Lee Jung-Hyun ) - ´ëÀü ¼±Ä¡°úº´¿ø ±¸°­³»°ú
ÀÌÀ¯¹Ì ( Lee You-Mee ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­³»°úÇб³½Ç

Abstract

ÀÌ ¿¬±¸´Â Ä¡°úÀÓÇöõÆ® ½Ã¼úÈÄ¿¡ ¹ß»ýÇÒ¼ö ÀÖ´Â °¨°¢ÀÌ»óÀÇ Æò°¡¸¦ À§ÇÏ¿© ´º·Î¹ÌÅ͸¦ »ç¿ëÇÏ¿© Á¤·®ÀûÀ¸·Î ÃøÁ¤ÇÏ¿©, ÀÓÇöõÆ® ½Ã¼úÈÄÀÇ °¨°¢½Å°æ Æò°¡¿¡ °³°üÀû ÁöħÀ» ¸¶·ÃÇÏ°íÀÚ Çϴµ¥ ¸ñÀûÀÌ ÀÖ´Ù.
2006³â ´ëÀü ½ã º´¿ø ±¸°­³»°ú¿¡ ³»¿øÇÑ È¯ÀÚÁß¿¡ ÀÓÇöõÆ® ¼ú½ÄÀ» ½ÃÇàÇÑ È¯ÀÚ 44¸í°ú ´ëÁ¶±º 30¸íÀ» ´ë»óÀ¸·Î Neurometer¨Þ CPT/C (Neurotron, Inc., Baltimore, Maryland, U.S.A.)¸¦ ÀÌ¿ëÇÏ¿© ÀÓÇöõÆ® ½Ã¼úÀü°ú ½Ã¼úÈÄ ¹ß»ç½Ã¿¡ 2000§Ô, 250 §Ô, 5 §Ô,ÁÖÆļö·Î °Ë»ç¸¦ ½ÃÇàÇÏ¿´´Ù. ÃøÁ¤ ºÎÀ§´Â ÀÓÇöõÆ® ½Ã¼úºÎÀ§¿¡ µû¶ó »ïÂ÷½Å°æÀÇ »ó¾Ç½Å°æ ºÐÁö¿Í ÇÏ¾Ç½Å°æ ºÐÁö¿¡ Àû¿ëÇÏ¿´´Ù.
Neurometer´Â ¼¼°¡ÁöÀÇ ÁÖÆļö (2000 §Ô, 250 §Ô, 5 §Ô)¸¦ Àû¿ëÇÒ ¼ö Àִµ¥, °¢ ÁÖÆļöº°·Î ´ë»óÀÚ°¡ °¨°¢À» ´À³¥ ¼ö ÀÖ´Â °¡Àå ³·Àº Àü·ùÀÇ ¼¼±â¸¦ Àü·ùÀÎÁö¿ªÄ¡·Î ±â·ÏÇÏ¿´´Ù. °¢ ½Å°æ¼¶À¯º° Àü·ùÀÎÁö¿ªÄ¡´Â A¥â¼¶À¯ÀÇ °æ¿ì 2000 §Ô, A¥ä ¼¶À¯ÀÇ °æ¿ì 250 §ÔÀÇ Àü·ùÀÚ±Ø ÇÏ¿¡¼­ Ư¡ÀûÀ¸·Î ¹ÝÀÀÇϸç, C¼¶À¯ÀÇ °æ¿ì 5 §ÔÀÇ Àü·ùÀÚ±Ø ÇÏ¿¡¼­ ¹ÝÀÀÇÑ´Ù.
Àü·ùÀÎÁö¿ªÄ¡ °Ë»ç´Â »ïÂ÷½Å°æ ¿µ¿ª¿¡ À־µµ ¸»ÃÊ½Å°æ ¼Õ»óÀ» Æò°¡Çϱâ À§ÇÏ¿© °Ë»ç¸¦ ½ÃÇàÇÒ ¼ö ÀÖÀ¸¸ç, ¸»ÃÊ½Å°æ ºÎÀ§¿¡ Ư¡ÀûÀÎ ÁÖÆļöÀÇ Àü·ù¸¦ ¹ß»ý½ÃÄÑ ¼±ÅÃÀûÀÎ ½Å°æ ¼¶À¯¸¦ ÀÚ±ØÇÑ´Ù. ¼­·Î ´Ù¸¥ ±½±âÀÇ ½Å°æ ¼¶À¯µéÀº °¢±â ´Ù¸¥ ºóµµÀÇ Àü·ùÀڱؿ¡ ¼±ÅÃÀûÀ¸·Î ¹ÝÀÀÇϴµ¥, °¢±â ´Ù¸¥ ÁÖÆļöÀÇ Àü·ùÀÚ±ØÀ» Àû¿ëÇϸç, °¢ Àü·ù¿¡ ¼±ÅÃÀûÀ¸·Î ¹ÝÀÀÇÏ´Â A¥â, A¥ä, C½Å°æ ¼¶À¯ÀÇ ¹ÝÀÀ ¿ªÄ¡¸¦ °³º°ÀûÀ¸·Î Æò°¡ÇÒ ¼ö ÀÖ´Ù. Àü·ùÀÎÁö¿ªÄ¡¸¦ ÅëÇÑ Æò°¡¿¡¼­´Â Àü·ùÀÎÁö ¿ªÄ¡ÀÇ Áõ°¨À» ÃøÁ¤ÇÏ¿© °¨°¢°ú¹ÎÀ̳ª °¨°¢°¨ÅðµîÀÇ °¨°¢ÀÌ»óÀ» Áø´ÜÇÒ ¼ö ÀÖ´Ù.
ÀÓÇöõÆ® ½Ã¼úÀüÈÄÀÇ Àü·ùÀÎÁö¿ªÄ¡¸¦ Æò°¡ÇÑ º» ¿¬±¸¿¡¼­´Â ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. ÀÓÇöõÆ® ½Ã¼ú ÀüÈÄÀÇ Æò°¡¿¡¼­´Â ÁÂ¿ì »óÇÏ¾Ç °¢°¢ÀÇ 2000 §Ô, 250 §Ô, 5 §Ô¿¡¼­ÀÇ Àü·ùÀÎÁö¿ªÄ¡´Â Àü¹ÝÀûÀ¸·Î ¼ö¼ú ÈÄ°¡ Áõ°¡µÇ¾úÀ¸¸ç, ÇϾǿ¡¼­´Â 2000 §Ô¿Í 5 §Ô¿¡¼­ ¼ö¼úÈÄ¿¡ÀÇ Àü·ùÀÎÁö¿ªÄ¡°¡ Åë°èÇÐÀûÀ¸·Î À¯ÀÇÇÏ°Ô Áõ°¡ÇÏ¿´´Ù.
2. Àü½ÅÁúȯÀ» °¡Áö°íÀְųª ±×·Î ÀÎÇÏ¿© Åõ¾àÁßÀÎ ±º¿¡¼­´Â ÀÓÇöõÆ® ¼ö¼ú ÀüÈÄ¿¡ À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾úÀ¸¸ç, ´ëÁ¶±º¿¡ ºñÇؼ­´Â ÁÂÃø 2000 §Ô¿Í 5 §Ô¿¡¼­ ÀÓÇöõÆ® ½Ã¼ú±ºÀÌ Àü·ùÀÎÁö¿ªÄ¡°¡ À¯ÀÇÇÏ°Ô ³ô¾Ò´Ù.
3. ´ëÁ¶±º°ú ÀÓÇöõÆ® ¼ö¼ú±ºÀÇ ¼ö¼úÀüÀÇ Àü·ùÀÎÁö¿ªÄ¡ ÃøÁ¤Ä¡ÀÇ ºñ±³¿¡¼­´Â ¿ìÃø 2000 §Ô, 5 §Ô¿¡¼­ ÀÓÇöõÆ® ½Ã¼ú±ºÀÌ À¯ÀÇÇÏ°Ô ³ô¾ÒÀ¸¸ç, ´ëÁ¶±º°ú ÀÓÇöõÆ® ¼ö¼úÈÄÀÇ Àü·ù ÀÎÁö ¿ªÄ¡ Æò°¡¿¡¼­´Â 2000 §Ô¿¡¼­ À¯ÀÇÇÑ Â÷À̸¦ º¸¿´´Ù.
4. ³²ÀÚ°¡ ¿©ÀÚº¸´Ù´Â Àü·ùÀÎÁö¿ªÄ¡°¡ ³ô¾ÒÀ¸³ª, Åë°èÇÐÀûÀÎ À¯ÀǼºÀ» º¸ÀÌÁö´Â ¾Ê¾ÒÀ¸¸ç, ÀÓÇöõÆ® ½Ã¼ú±º³»¿¡¼­µµ ³²³àÂ÷ÀÌ´Â º¸ÀÌÁö ¾Ê¾ÒÀ¸¸ç, ´ëÁ¶±º¿¡¼­ ÁÂÃø 2000 §Ô¿¡¼­ À¯ÀÇÇÏ°Ô ³·¾Ò´Ù. ÀÓÇöõÆ® ½Ã¼ú ÀüÈÄÀÇ Àü·ùÀÎÁö Æò°¡¿¡¼­ ³²³à ¼ºº°¿¡ µû¸¥ Â÷ÀÌ´Â ³²ÀÚ±º¿¡¼­´Â Åë°èÇÐÀû Â÷ÀÌ°¡ ¾ø¾ú°í, ¿©ÀÚ±º¿¡¼­ ¿ìÃø 5 §Ô, ÁÂÃø 2000 §Ô¿¡¼­ À¯ÀÇÇÏ°Ô ³ô¾Ò´Ù.
5. °¨°¢½Å°æÀÌ ÀÖ´Ù°í È£¼ÒÇÏ´Â ±º°ú ¾Æ´Ñ ±º°úÀÇ ºñ±³¿¡¼­´Â °¨°¢ÀÌ»óÀ» È£¼ÒÇÏ´Â ±ºÀÌ ÀüüÀûÀ¸·Î Àü·ùÀÎÁö¿ªÄ¡°¡ Áõ°¡ÇßÀ¸³ª Åë°èÇÐÀûÀÎ À¯ÀǼºÀº ¾ø¾ú´Ù. VAS»ó¿¡ Áõ°¡¸¦ º¸ÀÌ´Â ±ºÀÇ ¼ö¼úÀüÈÄÀÇ Àü·ùÀÎÁöÃøÁ¤ Æò°¡¿¡¼­´Â ¿ìÃø 5 §Ô¿¡¼­ ÀÓÇöõÆ® ½Ã¼úÈÄ Àü·ùÀÎÁö¿ªÄ¡°¡ À¯ÀÇÇÏ°Ô Áõ°¡ÇÏ¿´À¸¸ç, VAS Ç¥½Ã°¡ ¼ö¼úÀüÈÄ¿¡ ¸ðµÎ 0 ÀÎ °æ¿ì¿¡ ÁÂÃø 2000 §Ô¿¡¼­ ¼ö¼úÈÄÀÇ Àü·ùÀÎÁö¿ªÄ¡°¡ À¯ÀÇÇÏ°Ô Áõ°¡ÇÏ¿´´Ù.
ÀÌ ¿¬±¸´Â ´º·Î¹ÌÅ͸¦ ÀÌ¿ëÇÏ¿© Ä¡¾Æ ÀÓÇöõÆ® ½Ã¼úÈÄ¿¡ ¹ß»ýÇÒ¼ö ÀÖ´Â °¨°¢ÀÌ»óÀ» Æò°¡ ÇÒ¼ö ÀÖ´Â °´°üÀûÀÌ°í Á¤·®ÀûÀÎ Àü·ùÀÎÁö¿ªÄ¡¸¦ Á¦½ÃÇÏ°íÀÚ ÇÏ¿´´Ù.

This study attempted to contribute to the clinical application of implant operation by making a quantitative nerve examination using a neurometer for the evaluation of sensory disturbances that could be incurred after the implantation in the dental clinics, and it intended to establish an objective guideline in the evaluation of sensory nerve after the operation of implant.
An inspection was performed with the frequencies of 2000§Ô, 250 §Ô and 5 §Ô before and after the operations of tooth implant using Neurometer¨Þ CPT/C (Neurotron, Inc. Baltimore, Maryland, USA) for 44 patients who had performed an implant operation among the patients coming to Daejeon Sun Dental Hospital in 2006 and 30 people for control group. The measuring sites were maxillary nerve ending and mandibular nerve ending of trigeminal nerve according to the implant operating regions.
The current perception threshold (CPT) by each nerve fiber was specifically responded under the electric stimulation of 2000 §Ô in case of A¥â fiber and of 250 §Ô in case of A¥ä fiber and of 5§Ô in case of C fiber. The CPT test could be performed to assess the damages of peripheral nerve in the trigeminal nerve area and it stimulated selective nerve fibers by generating the electricity of specific frequency in the peripheral nerve area. The nerve fibers with varied thickness were responsive selectively to the electric stimulation with different frequencies; accordingly, they applied the electric stimulation with different frequencies and the reaction threshold of A¥â, A¥ä and C fibers selectively responsive to each electric current could be individually evaluated. In the assessment through the CPT, the increase and decrease of the CPT could be measured so that sensory disturbances such as hyperaesthesia or hypoaesthesia could be diagnosed.
This study could obtain the following results after the assessment of the CPT before and after the implant operation.
1. In the assessment before and after the implant operation, the CPT in the frequencies of 2000 §Ô, 250 §Ô, 5 §Ô for maxillary branch increased on the whole after the operation and the CPT for mandibular branch in the A¥â-fiber(2000 §Ô) and C-fiber(5 §Ô )after the operation increased statistically significantly.
2. For the groups of patients with medically compromised or its subsequent medicinal prescription, there were no significant differences before and after the implant operation and for the control groups, significantly high CPT was shown after the implant operation in the left A¥â -fiber(2000 §Ô) and C-fiber(5 §Ô).
3. In the comparison of the measured value of the CPT before the operation between the control group and the implant operation group, the latter group had a significantly high measured value of the CPT in the right A¥â-fiber(2000 §Ô) and C-fiber(5 §Ô) and there were significant differences in A¥â-fiber(2000 §Ô) in the CPT assessment after the implant operation for the control group.
4. Male participants had higher CPT than female counterparts; however, there were no statistic significances. In the CPT evaluation before and after implant operation, there were no statistical differences in the male group while the right C-fiber(5 §Ô) and left A¥â-fiber(2000§Ô) were significantly high in the female group.
5. In the comparison between the group who complain sensory disturbance and the other group, the CPT increased on the whole in the former group, but there were no statistical significances. In the groups, whom there was an increase in VAS, the CPT after the implant operation in the right C-fiber(5 §Ô) increased significantly; meanwhile, in case that the VAS mark was ¡¯0¡¯ before and after the operation, the CPT after the operation in the left A¥â-fiber(2000 §Ô) increased significantly.
This study suggested that the CPT measurements using Neurometer¨ÞCPT/C, provide useful information of objective and quantitative sensory disturbances for tooth implantation.

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Current perception threshold;Implant;Neurometer;Sensory disturbance

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