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Matrix metalloproteinase-8 and substance P levels in root canal exudates of nonvital teeth

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ÀÌ¿ìö ( Lee Woo-Cheol ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
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±Ý±â¿¬ ( Kum Kee-Yeon ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø Ä¡°úº¸Á¸Çб³½Ç
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Abstract

¿¬±¸¸ñÀû: ±Ù°ü Ä¡·á¸¦ ÀüÈÄ·Î ±Ù°ü »ïÃâ¾×À» ÃßÃâÇÏ¿© MMP-8°ú SPÀÇ ¾çÀ» ÃøÁ¤ÇÏ°í ±Ù°ü Ä¡·á¿¡ µû¸¥ º¯È­ ¹× À̵鰣ÀÌ »ó°ü°ü°è¸¦ º¸´Â °ÍÀ» º» ¿¬±¸ÀÇ ¸ñÀûÀ¸·Î ÇÏ¿´´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: Ä¡¼ö±«»ç, ȤÀº ÀÌÀü ±Ù°ü Ä¡·á ÈÄ Ä¡±Ù´Ü º´¼Ò°¡ À־ ±Ù°ü Ä¡·á°¡ ¿¹Á¤µÈ 35°³ÀÇ Ä¡¾Æ¸¦ ´ë»óÀ¸·Î ÇÏ¿´À¸¸ç, ±Ù°ü Ä¡·á ù³¯, 2ÁÖ ÈÄ, 4ÁÖ ÈÄ paper point¸¦ ÀÌ¿ëÇÏ¿© ±Ù°ü »ïÃâ¾×À» äÃëÇÏ¿´´Ù. MMP-8°ú SPÀÇ ¾çÀº enzyme-linked immunosorbent assay (ELISA)¸¦ ÀÌ¿ëÇÏ¿© Á¤·® ÇÏ¿´´Ù. »ïÃâ¾×ÀÇ Ã¤Ãë ½ÃÁ¡¿¡ µû¸¥ MMP-8, SP ¾çÀÇ º¯È­ ¹× ȯÀÚÀÇ ÅëÁõ Á¤µµ, ÀÓ»óÁõ»ó¿¡ µû¸¥ MMP-8, SPÀÇ º¯È­´Â mixed modelÀ» ÀÌ¿ëÇÏ¿© Åë°è ºÐ¼®ÇÏ¿´À¸¸ç MMP-8°ú SPÀÇ »ó°ü°ü°è´Â Pearson correlation coefficient¸¦ ±¸ÇÏ¿© ºÐ¼®ÇÏ¿´´Ù(p < 0.05).

°á°ú: ±Ù°üÄ¡·á°¡ ÁøÇàµÊ¿¡ µû¶ó MMP-8, SPÀÇ ¾çÀº À¯ÀǼº ÀÖ°Ô °¨¼ÒÇÏ¿´À¸¸ç(p < 0.0001), ȯÀÚÀÇ ÅëÁõÀ̳ª ŸÁø°Ë»ç ½Ã ¹ÝÀÀÀÌ SPÀÇ ¹ßÇö¿¡ ¿µÇâÀ» ÁÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. MMP-8ÀÇ °æ¿ì SP¿Í ¹Ì¾àÇÑ ¾çÀÇ »ó°ü°ü°è°¡ ÀÖ¾úÁö¸¸ ȯÀÚÀÇ Áõ»óÀ̳ª ´Ù¸¥ ÀÓ»ó°Ë»ç¿Í »ó°ü°ü°è°¡ ¹ß°ßµÇÁö ¾Ê¾Ò´Ù.

°á·Ð: º» ½ÇÇè¿¡¼­ »ç¿ëµÈ paper point¸¦ ÀÌ¿ëÇÑ ±Ù°ü »ïÃâ¾×ÀÇ Ã¤Ã븦 ÅëÇÏ¿© Ä¡±Ù´Ü ¿°Áõ°úÁ¤¿¡¼­ ¹ßÇöµÇ´Â MMP-8, SP¸¦ °ËÃâÇÒ ¼ö ÀÖ¾úÀ¸¸ç ƯÈ÷ SPÀÇ °æ¿ì ȯÀÚÀÇ Áõ»ó°ú º¸´Ù °ü·ÃÀÌ ±íÀº °ÍÀ¸·Î ³ªÅ¸³µ´Ù.

Objectives: The aim of this study was to investigate levels of matrix metalloproteinase-8 (MMP-8) and substance P (SP) in root canal exudates during root canal treatment (RCT) of nonvital, painful teeth.

Materials and Methods: Patients scheduled for nonsurgical RCT were prospectively selected; the study was performed after obtaining informed consent from the patients and was approved by the Institutional Review Board for Clinical Research of Gangnam Severance Hospital, Yonsei University (3-2008-0118). Canal exudates samples were collected using sterilized paper points from teeth scheduled for RCT across three different time periods. MMP-8 and SP levels were measured using enzyme-linked immunosorbent assay (ELISA). Data were analyzed using a mixed model analysis and the Pearson correlation analysis (p < 0.05).

Results: MMP-8 and SP levels in GCF were decreased during RCT (p < 0.0001), and they showed a weak positive correlation to each other (p < 0.05). Patients¡¯ subjective pain levels and the r
esponse from percussion test were significantly related to SP level.

Conclusions: This study demonstrated that periradicular inflammation endodontic origin can elevate SP and MMP-8 levels in root canal exudates. Interestingly, SP level of canal exudates showed a possibility of being used as an indicator of pain due to periapical pathosis.

Å°¿öµå

±Ù°ü »ïÃâ¾×; ÅëÁõ
Canal exudate; MMP-8; SP; Pain

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