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±¹³» ½ÃÆÇ ¿ìÀ¯¿Í ÀúÁö¹æ ¿ìÀ¯ÀÇ Streptococcus mutans ¼¼±Õ¸·¿¡ ´ëÇÑ ¿ì½Ä¿ø¼º ºñ±³

Comparison of Cariogenicity of Bovine Milk and Low-fat Milk on Streptococcus mutans Biofilm

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Ȳ¹Î¼± ( Hwang Min-Seon ) - °­¸ª¿øÁÖ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
¹ÚÈ£¿ø ( Park Ho-Won ) - °­¸ª¿øÁÖ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
ÀÌÁÖÇö ( Lee Ju-Hyun ) - °­¸ª¿øÁÖ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
¼­Çö¿ì ( Seo Hyun-Woo ) - °­¸ª¿øÁÖ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
À̽ÿµ ( Lee Si-Young ) - °­¸ª¿øÁÖ´ëÇб³ Ä¡°ú´ëÇÐ ¹Ì»ý¹°Çб³½Ç

Abstract

º» ¿¬±¸ÀÇ ¸ñÀûÀº ±¹³» »óÇ°È­µÈ ÀÏ¹Ý ¿ìÀ¯¿Í ÀúÁö¹æ ¿ìÀ¯ÀÇ ¿ì½Ä¿ø¼ºÀ» CDC Biofilm Reactor¸¦ »ç¿ëÇÑ ¼¼±Õ¸· ¸ðµ¨À» ÅëÇØ ºñ±³ÇÏ´Â °ÍÀÌ´Ù. ¼ÒÀÇ ¹ý¶ûÁú ½ÃÆí¿¡ Streptococcus mutans ATCC 25175 ¼¼±Õ¸·À» Çü¼ºÇÏ¿´´Ù. ÇÏ·ç¿¡ 3¹ø ÀÏ¹Ý ¿ìÀ¯, ÀúÁö¹æ ¿ìÀ¯¿Í 0.9% »ý¸®½Ä¿°¼ö¸¦ ¼¼±Õ¸·¿¡ ³ëÃâ½ÃÄ×´Ù. ½Ã°£ÀÇ È帧¿¡ µû¸¥ ¹èÁöÀÇ pH º¯È­¸¦ ÃøÁ¤ÇÏ¿´´Ù. ½ÇÇè 5ÀÏ° ½ÃÆí¿¡¼­ ¼¼±Õ¸·À» ºÐ¸®ÇÏ¿© ¼¼±ÕÀÇ Áý¶ôÇü¼º´ÜÀ§¸¦ ÃøÁ¤ÇÏ¿´´Ù. ¼¼±Õ¸·ÀÇ µÎ²²´Â °øÃÊÁ¡Çö¹Ì°æÀ¸·Î °üÂûÇÏ¿´´Ù. ½ÇÇè Àü, ÈÄÀÇ Ç¥¸é¹Ì¼¼°æµµ¸¦ ÃøÁ¤ÇÏ¿© ½ÃÆíÀÇ ¹Ì¼¼°æµµº¯È­À²À» Æò°¡ÇÏ¿´´Ù. ¼¼ ±º °£ÀÇ pH º¯È­ ¾ç»ó°ú ¼¼±Õ¸· µÎ²²´Â À¯»çÇÏ¿´À¸¸ç ¹Ì¼¼°æµµº¯È­À²°ú ¼¼±ÕÀÇ Áý¶ôÇü¼º´ÜÀ§´Â À¯ÀÇÇÑ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù(p > 0.05). º» ¿¬±¸ °á°ú, ÀÏ¹Ý ¿ìÀ¯¿Í ÀúÁö¹æ ¿ìÀ¯ÀÇ ¿ì½Ä¿ø¼ºÀº Â÷À̸¦ º¸ÀÌÁö ¾Ê¾ÒÀ¸¸ç, ¿ìÀ¯´Â ¿ì½Ä¿¡ ´ëÇØ ¾ÈÀüÇÑ ½ÄÇ°ÀÓÀ» È®ÀÎÇÏ¿´´Ù.

The purpose of this study was to compare the cariogenicity of commercially available bovine milk and low-fat milk in a biofilm model using the CDC Biofilm Reactor. Streptococcus mutans ATCC 25175 biofilms were formed on saliva coated bovine enamel slabs in a CDC Biofilm Reactor. Biofilms were exposed three times per day to one of the following materials: commercial whole milk (fat content: 3.4%), low-fat milk (fat content: 1%), or 0.9% NaCl. Medium pH was measured at different time points. After 5 days, biofilms were separated from slabs to evaluate the CFUs. The biofilm thickness was observed by confocal laser-scanning microscopy (CLSM). Enamel slab¡¯s demineralization was assessed by measuring surface microhardness before and after the experiment. For microhardness and CFUs assessment, no significant difference was found among the three groups. All groups showed similar pattern of medium pH change and biofilm thickness. Our results showed that there was no difference in the cariogenicity between whole milk and low-fat milk. Both milks were relatively non-cariogenic compared to the control group.

Å°¿öµå

¿ì½Ä¿ø¼º; ¿ìÀ¯; Áö¹æ; Streptococcus mutans; ¼¼±Õ¸·
Cariogenic ;Milk ;Fat ;Streptococcus mutans ;Biofilm

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