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An Antibacterial Effect of Colloidal Silver on Some Oral Bacteria

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Abstract

¼ºÀÎÀÇ ¾çÈ£ÇÑ ±¸°­À§»ý»óÅ À¯Áö¿¡ ÀÖ¾î ÁÖ¿ä ÀúÇØÀÎÀÚ·Î ÀÛ¿ëÇϸç, ±¹¼ÒÀûÀ¸·Î ¼¼±Õ¿äÀÎ Ãø¸é¿¡¼­ Åë»óÀÇ ÇÕ¼º Ç×»ýÁ¦ ¶Ç´Â Ç×±Õ¼ºÀ» °¡Áö´Â È­Çй°Áú¿¡ ³·Àº °¨¼ö¼ºÀ» º¸ÀÌ´Â ¼öÁ¾ÀÇ ±×¶÷À½¼ºÀÇ Çø±â¼º ¼¼±Õµé¿¡ ÀÇÇØ À¯¹ßµÇ´Â ±¸Ãë¿Í Ä¡ÁÖÁúȯ¿¡ ´ëÇÑ ¼¼±Õ¿äÀÎ °ü¸® Ãø¸é¿¡¼­ÀÇ È¿À²Àû Ä¡·á¸¦ À§ÇÑ Ãµ¿¬ Ç×±Õ¼º ±¸°­ÇÔ¼öÁ¦ÀÇ °³¹ß¿¡ ÇÊ¿äÇÑ ±âÃÊÀڷḦ ¾ò°íÀÚ, ±¸Ãë¿Í Ä¡ÁÖÁúȯÀÇ À¯¹ß°ú °ü·ÃµÈ ´ëÇ¥Àû ±¸°­³» ±×¶÷À½¼ºÀÇ Çø±â¼º ¼¼±ÕµéÀÎ P. intermedia¼Ó, P. gingivalis¼Ó ¹× F. nucleatum¼Ó °¡¿îµ¥ ¼öÁ¾ÀÇ ±ÕÁֵ鿡, õ¿¬¹°ÀÇ ÀÏÁ¾ÀÎ ÀºÀ¸·ÎºÎÅÍ Á¦Á¶µÈ ÄÝ·ÎÀ̵å»ó Àº ¿ë¾×À» ³óµµ(10 ppm, 30 ppm, 50 ppm, 80 ppm)¸¦ ´Þ¸® Àû¿ëÇÑ ÈÄ, Çø±âÀû »óÅ¿¡¼­ÀÇ °æ°ú½Ã°£(24 ½Ã°£, 48 ½Ã°£, 72 ½Ã°£)¿¡ µû¸¥ Áõ½Ä¾ïÁ¦À²°ú Ä¡»çÀ²À» ÃøÁ¤ÇÏ¿©, ÃÖ¼ÒÁõ½Ä¾ïÁ¦³óµµ(minimal inhibitory concentration), ÃÖ¼Ò¼¼±ÕÄ¡»ç³óµµ(minimal bactericidal concentration) ¹× Ç×±ÕÈ¿°úÀÇ ¾ç»óÀ» ºÐ¼®, Æò°¡ÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. ÄÝ·ÎÀ̵å»ó ÀºÀÇ ½ÇÇè´ë»ó ¼¼±Õ¿¡ ´ëÇÑ ÃÖ¼ÒÁõ½Ä¾ïÁ¦³óµµ´Â P. intermedia¼ÓÀÇ °æ¿ì 30 ppm, P. gingivalis¼ÓÀÇ °æ¿ì¿¡´Â ½ÇÇè ±ÕÁÖ¿¡ µû¶ó 10 ppm ¶Ç´Â 30 ppm, ±×¸®°í F. nucleatum¼ÓÀÇ °æ¿ì¿¡´Â ½ÇÇè ±ÕÁÖ¿¡ µû¶ó 30 ppm, 50 ppm ¶Ç´Â 80 ppmÀ̾ú´Ù.
2. ÄÝ·ÎÀ̵å»ó ÀºÀÇ ½ÇÇè´ë»ó ¼¼±Õ¿¡ ´ëÇÑ ÃÖ¼Ò¼¼±ÕÄ¡»ç³óµµ´Â P. intermedia¼ÓÀÇ °æ¿ì 30 ppm, P. gingivalis¼ÓÀÇ °æ¿ì¿¡´Â ½ÇÇè ±ÕÁÖ¿¡ µû¶ó 30 ppm ¶Ç´Â 50 ppm, ±×¸®°í F. nucleatum¼ÓÀÇ °æ¿ì¿¡´Â ½ÇÇè ±ÕÁÖ¿¡ µû¶ó 30 ppm ¶Ç´Â 80 ppmÀ̾ú´Ù.
3. ÄÝ·ÎÀ̵å»ó ÀºÀÇ ½ÇÇè´ë»ó ±ÕÁÖ¿¡ ´ëÇÑ Ç×±ÕÈ¿°ú´Â µ¿ÀÏÇÑ ³óµµ¿¡¼­µµ ½ÇÇè´ë»ó ±ÕÁÖ¿¡ µû¶ó Á¤±ÕÈ¿°ú³ª »ì±ÕÈ¿°ú, ¶Ç´Â ¾çÀÚ ¸ðµÎ¿¡ ±âÀÎÇÏ¿´´Ù.
4. ÄÝ·ÎÀ̵å»ó ÀºÀÌ ³óµµº°·Î Àû¿ëµÈ ÈÄ °æ°ú½Ã°£¿¡ µû¸¥ ½ÇÇè´ë»ó ¼¼±ÕÀÇ Áõ½Ä¿¡ ¹ÌÄ¡´Â È¿°ú¿¡ À־ P. intermedia¼Ó ±ÕÁÖÀÇ °æ¿ì ÄÝ·ÎÀ̵å»ó ÀºÀÌ 30 ppm~50 ppmÀÇ ³óµµ·Î 48 ½Ã°£~72 ½Ã°£, P. gingivalis¼Ó ±ÕÁÖÀÇ °æ¿ì 10 ppm~30 ppmÀÇ ³óµµ·Î 24 ½Ã°£~48 ½Ã°£, ±×¸®°í F. nucleatum¼Ó ±ÕÁÖÀÇ °æ¿ì¿¡´Â 30 ppmÀÇ ³óµµ·Î 24 ½Ã°£ µ¿¾È Àû¿ëµÈ °æ¿ì ´ëÁ¶±º¿¡ ºñÇØ ±ÕÁÖ¿¡ µû¶ó ÇöÀúÇÏ°Ô ¶Ç´Â º¸Åë¼öÁØÀ¸·Î Áõ½ÄÀÌ ¾ïÁ¦µÇ¾ú´Ù.

The maintenance of good oral health in adults is often hindered by oral malodor and periodontal diseases which are known to be commonly caused by some species of Gram-negative anaerobic bacteria, with low sensitivity to common synthetic antibiotics or antibacterial chemical agents. Therefore the development of a nonharmful natural antibacterial oral rinsing remedy against the causative bacteria is thought to be very important.
The purpose of this study is to obtain the basic data for development of a nonharmful natural antibacterial oral rinsing remedy using colloidal silver.
The author applied colloidal silver solution with concentration of 10, 30, 50, 80 ppm to some strains in species of Prevotella intermedia, Porphyromonas gingivalis, Fusobaterium nucleatum, and evaluated the effects of colloidal silver on the growth of experimental bacterial strains in aspects of minimal inhibitory concentration (MIC), minimal bactericidal concentration (MBC) and growth pattern after incubation for 24, 48, 72 hours.
The obtained results were as follows: MIC of colloidal silver solution against experimental strains was 30 ppm in P. intermedia, 10 or 30 ppm in P. gingivalis, and 30, 50, or 80 ppm in F. nucleatum. And MBC of colloidal silver solution against experimental strains was 30 ppm in P. intermedia, 30 or 50 ppm in P. gingivalis, 30 or 80 ppm in F. nucleatum. Therefore it was concluded that colloidal silver exhibited bacteriostatic or/and bacteriocidal effects against some experimental strain. And the inhibition of growth of experimental strains were markedly or considerably exhibited under 30 ppm~50 ppm of colloidal silver solution for 48 hours~72 hours in P. intermedia, 10 ppm~30 ppm for 24 hours~48 hours in P. gingivalis, 30 ppm for 24 hours in F. nucleatum.
These results indicate that the colloidal silver inhibited effectively the growth of some species of Gram-negative anaerobic bacteria by exhibition of bacteriostatic or/and bacteriocidal effects, and can be used as a possible major ingredient of the nonharmful natural antibacterial oral rinsing remedy to oral malodor and periodontal diseases.

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