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THE EFFECT OF VARIOUS BONDING SYSTEMS ON THE MICROTENSILE BOND STRENGTH OF IMMEDIATE AND DELAYED DENTIN SEALING

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ÇÏÁøÈñ ( Ha Jin-Hee ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç
±èÇöö ( Kim Hyeon-Cheol ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç
Ç㺹 ( Hur Bock ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç
¹ÚÁ¤±æ ( Park Jeong-Kil ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç

Abstract

ÀÌ ¿¬±¸ÀÇ ¸ñÀûÀº ¼öÁ¾ÀÇ »ó¾ÆÁú Á¢Âø½Ã½ºÅÛÀÌ Áï½Ã ¹× Áö¿¬ »ó¾ÆÁú ºÀ¼â¿¡¼­ ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Æò°¡ÇÏ´Â °ÍÀ̾ú´Ù. 18°³ÀÇ ¹ß°ÅµÈ ´ë±¸Ä¡¸¦ »ç¿ëÇÏ¿© Áö¿¬ »ó¾ÆÁú ºÀ¼â±×·ìÀº ³ëÃâµÈ »ó¾ÆÁú¸éÀ» Àӽüöº¹ÇÏ¿´À¸¸ç, 1ÁÖ°£ º¸°ü ÈÄ, Á¢ÂøÁ¦¿¡ µû¶ó 3°³ÀÇ ¼Ò±×·ìÀ¸·Î ³ª´©¾î µµÆ÷ÇÏ¿´´Ù; SB ±×·ì (3 ´Ü°è »ê ºÎ½Ä Á¢ÂøÁ¦), SE ±×·ì (2´Ü°è ÀÚ°¡ ºÎ½Ä Á¢ÂøÁ¦), XE ±×·ì (1´Ü°è ÀÚ°¡ ºÎ½Ä Á¢ÂøÁ¦). Áï½Ã »ó¾ÆÁú ºÀ¼â±×·ìÀº 3°³ÀÇ ¼Ò±×·ìÀ¸·Î ³ª´©¾î Á¢ÂøÁ¦¸¦ µµÆ÷ÇÏ°í Àӽüöº¹ ÈÄ 1ÁÖ°£ º¸°üÇÏ¿´´Ù. ¸ðµç ½ÃÆíÀº °£Á¢ º¹ÇÕ·¹Áø°ú ·¹Áø ½Ã¸àÆ®·Î ÇÕÂøÇÏ°í ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ¸¦ ÃøÁ¤ÇÏ¿©, ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù. 1. Áï½Ã »ó¾ÆÁú ºÀ¼â±×·ìÀº Áö¿¬ »ó¾ÆÁú ºÀ¼â±×·ì¿¡ ºñÇØ 3´Ü°è »ê ºÎ½Ä°ú 2´Ü°è ÀÚ°¡ ºÎ½Ä Á¢ÂøÁ¦¿¡¼­ ³ôÀº ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ¸¦ º¸¿´´Ù (p < 0.05). 2. Áï½Ã ¹× Áö¿¬ »ó¾ÆÁú ºÀ¼â±×·ì ¸ðµÎ ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ´Â 3´Ü°è »ê ºÎ½Ä, 2´Ü°è ÀÚ°¡ ºÎ½Ä, 1´Ü°è ÀÚ°¡ ºÎ½Ä Á¢ÂøÁ¦¼øÀ¸·Î °¨¼ÒÇÏ¿´°í, Áï½Ã »ó¾ÆÁú ºÀ¼â±×·ì¿¡¼­´Â 1´Ü°è ÀÚ°¡ ºÎ½Ä Á¢ÂøÁ¦¿Í ´Ù¸¥ ¼Ò±×·ì°£ À¯ÀÇÇÑ Â÷ÀÌ°¡ ÀÖ¾úÀ¸¸ç (p< 0.05), Áö¿¬ »ó¾ÆÁú ºÀ¼â ±×·ì¿¡¼­´Â ¸ðµç ¼Ò±×·ì°£ À¯ÀÇÇÑ Â÷ÀÌ°¡ ÀÖ¾ú´Ù (p < 0.05). 3. ÆÄÀý ¾ç»óÀº ´ëºÎºÐ È¥ÇÕ¼º ÆÄÀýÀ» º¸¿´À¸¸ç, 1´Ü°è ÀÚ°¡ ºÎ½Ä Á¢ÂøÁ¦¿¡¼­¸¸ Á¢Âø¼º ÆÄÀýÀ» º¸¿´´Ù.

The purpose of this study was to compare the effect of various dentin bonding systems on microtensile bond strength of immediate dentin sealing (IDS) and delayed dentin sealing (DDS). Eighteen extracted permanent molars were used in this study. The teeth for DDS group were restored with a provisional restorations, and immersed in saline solution for 1 week, and divided into 3 subgroups according to various dentin bonding adhesives; SB subgroup (3 step total-etch adhesive), SE subgroup (2 step self-etch adhesive), XE subgroup (1 step self-etch adhesive). In IDS group, the teeth were divided into 3 subgroups, and applied with bonding adhesives as in DDS group. The teeth were restored with provisional restorations, and immersed in saline solution for 1 week. Indirect composite disc was cemented with resin cement, and all specimens were subjected to microtensile bond strength. The data were statistically analyzed with oneway ANOVA and Student t-test. The results were as follows: 1. The IDS group showed significantly higher than DDS group in 3 step total-etch and 2 step selfetch adhesive (p < 0.05). 2. In IDS and DDS group, 3 step total-etch adhesive showed the highest value, followed by 2 step self-etch, and 1 step self-etch adhesive. In IDS group, the value for 1 step self-etch adhesive was significantly different from those of the other subgroups (p < 0.05), and in DDS group, there were statistical differences in all subgroup (p < 0.05). 3. Failure modes of tested dentin bonding adhesives were mostly mixed failure and only 1 step self-etch adhesive showed adhesive failure.

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Immediate dentin sealing;Delayed dentin sealing;Indirect resin composite restoration;Dentin bonding adhesives;Microtensile bond strength

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