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THE CHANCE OF ADAPTABILITY CHANCE IN ADHESIVE SYSTEMS TO DENTIN SUBSTRTE ACCORDING TO STORAGE TIME

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Abstract

º» ¿¬±¸´Â »ó¾ÆÁú¿¡ 2´Ü°è¿Í ´ÜÀÏ ´Ü°è ÀÚ°¡ »êºÎ½Ä Á¢ÂøÁ¦¸¦ Àû¿ëÇÏ¿© º¹ÇÕ·¹ÁøÀ» Á¢ÂøÇÑ ÈÄ ÀúÀå±â°£¿¡ µû¸¥ ¹Ì¼¼ ÀÎÀå °áÇÕ°­µµ¿Í Á¢Âø°è¸éÀÇ º¯È­¸¦ »óÈ£ ºñ±³Çϱâ À§ÇÏ¿© ½ÃÇàÇÏ¿´´Ù. ¹ß°ÅµÈ »ó ¡¤ÇÏ¾Ç ´ë±¸Ä¡ 48°³ÀÇ ±³ÇÕ¸éÃø »ó¾ÆÁúÀ» ³ëÃâ½ÃÄÑ 12°³¾¿ 4°³ÀÇ ±ºÀ¸·Î ºÐ·ùÇÏ¿´´Ù »ç¿ëµÈ Á¢ÂøÁ¦ÀÇ Á¾·ù¿¡ µû¶ó SE Bond ±º, AdheSE ±º, Adper ±º, Xeno III ±ºÀ¸·Î ºÐ·ùÇÏ¿© Á¢ÂøÁ¦¸¦ Àû¿ëÇÑ ÈÄ, µ¿ÀÏ È¸»çÀÇ º¹ÇÕ·¹Áø À» 4 mmµÎ²²·Î Á¢Âø½ÃÄ×´Ù. °¢ ±º´ç 4°³ÀÇ Ä¡¾Æ¸¦ ¼±ÅÃÇÏ¿© Áõ·ù¼ö°¡ ´ã°ÜÁø ¿ë±â¿¡ Áý¾î³Ö°í 37$^{\circ}C$ÀÇ Ç׿±⿡ °¢°¢ 1ÀÏ 15ÀÏ, 30ÀÏ µ¿¾È ÀúÀåÇÑ ÈÄ ½ÃÆíÀ» Á¦ÀÛÇÏ¿© °¢°¢ ¹Ì¼¼ÀÎÀå °áÇÕ°­µµÀÇ ÃøÁ¤°ú ÁÖ»çÀüÀÚ Çö¹Ì°æ °üÂû ÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ³ªÅ¸³»¾ú´Ù. 2´Ü°è ÀÚ°¡ »êºÎ½Ä Á¢ÂøÁ¦´Â 1ÀÏ¿¡¼­ 30°£ÀÇ ÀúÀå±â°£ µ¿¾È °áÇÕ°­µµ°¡ Á¡Â÷ÀûÀ¸·Î °¨¼ÒÇÏ¿´Áö¸¸ Åë°èÇÐÀûÀ¸·Î À¯ÀÇÇÑ Â÷À̸¦ ³ªÅ¸³»Áö ¾Ê¾Ò°í, »ó¾ÆÁú°ú Á¢ÂøÁ¦ °£¿¡ ±ä¹ÐÇÑ Á¢Âø°ü°è¸¦ º¸¿´´Ù. ¹Ý¸é¿¡ ´ÜÀÏ ´Ü°èÀÚ°¡ »êºÎ½Ä Á¢ÂøÁ¦´Â 1ÀÏÀÇ ÀúÀå±â°£¿¡ ºñÇØ 30ÀÏÀÇ ÀúÀå±â°£¿¡¼­ Åë°èÇÐÀûÀÎ °áÇÕ°­µµÀÇ °¨¼Ò¸¦ ³ªÅ¸³»¾úÀ¸¸ç, »ó¾ÆÁú°ú Á¢ÂøÁ¦ °£¿¡ ³ÐÀº °£±ØÀÌ °üÂûµÇ¾ú´Ù. µû¶ó¼­ º» ¿¬±¸¿¡¼­ ³ªÅ¸³­ µÎ Á¾·ùÀÇ 30ÀÏ µ¿¾ÈÀÇ Á¢Âø³»±¸¼ºÀº 2´Ü°è ÀÚ°¡ »êºÎ½Ä Á¢ÂøÁ¦°¡ ´ÜÀÏ ´Ü°è ÀÚ°¡ »êºÎ½Ä Á¢ÂøÁ¦º¸´Ù ¿ì¼öÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù.

This study compared the microtensile bond strength ($\mu$TBS) and microscopic change of two 2-step and two 1-step self-etching adhesives to dentin according to storage times in distilled water. Occlusal dentin was exposed in 48 human molars. They were divided to four groups by different adhesives: SE Bond group (Clearfil SE Bond), AdheSE group (AdheSE). Adper group (Adper Prompt L-Pop), and Xeno group (Xeno III) . Each group was stored in 37$^{\circ}C$ distilled water for 1, 15, and 30 days. Resin-bonded specimens were sectioned into beams and subjected to $\mu$TBS testing with a crosshead speed of 1 mm/minute. For SEM observation, one specimen was selected and sectioned in each group after each stroage time. Resin-dentin interface was observed under FE-SEM. In all storage times, mean $\mu$TBS of SE group was significantly higher than those of other groups (p < 0.05). There was no significant difference between mean $\mu$TBS of SE group and AdheSE group among all storage times, but significant difference between 1- and 30-day storage in mean y$\mu$TBS of Adper group and Xeno group (p > 0.05). For 1-and 15-day storage, all groups showed the close adaptation between resin-dentin interfaces. For 30-day storage, resin-dentin interfaces showed wide gap in Adper group and separate pattern in Xeno III group. [J Kor Acad Cons Dent 30(2):210-220, 2005]

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