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ENAMEL ADHESION OF LIGHT-AND CHEMICAL-CURED COMPOSITES COUPLED BY TWO STEP SELF-ETCH ADHESIVES

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Á¶¿µ°ï ( Cho Young-Gon ) - Á¶¼±´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç

Abstract

ÀÌ ¿¬±¸ÀÇ ¸ñÀûÀº 2´Ü°è ÀÚ°¡»êºÎ½Ä Á¢ÂøÁ¦¸¦ ÀÌ¿ëÇÏ¿© ¹ý¶ûÁú¿¡ ´ëÇÑ ±¤ÁßÇÕ°ú È­ÇÐÁßÇÕ º¹ÇÕ·¹ÁøÀÇ °áÇÕ°­µµ Â÷À̸¦ ºñ±³ÇÏ°í, ¶ÇÇÑ Çö¹Ì°æÀû ÀÎ °üÂûÀ» ÅëÇÏ¿© 2´Ü°è ÀÚ°¡ »êºÎ½Ä Á¢ÂøÁ¦°¡ ¹ý¶ûÁú¿¡¼­ È­ÇÐÁßÇÕ º¹ÇÕ·¹Áø°ú ºñÀûÇÕ¼ºÀ» ³ªÅ¸³»´Â°¡¸¦ ¾Ë¾Æº¸±â À§ÇØ ½ÃÇàÇÏ¿´´Ù. ¹Ì¼¼Àü´Ü °áÇÕ°­µµ¸¦ ÃøÁ¤Çϱâ À§ÇÏ¿© Isomet Low Speed Saw¸¦ ÀÌ¿ëÇÏ¿© ¹ß°ÅÇÑ ´ë±¸Ä¡¸¦ ±Ù, ¿ø½É ¹æÇâÀ¸·Î 1 mmµÎ²²°¡ µÇµµ·Ï Àý´ÜÇÏ¿© ¿©·¯ °³ÀÇ ÀýÆíÀ» ¸¸µé¾ú´Ù. Ä¡¾ÆÀÇ ÀýÆíµéÀ»4°³ÀÇ ±ºÀ¸·Î ºÐ·ùÇÑ ÈÄ, »ç¿ëµÈ Á¢ÂøÁ¦¿¡ µû¶ó SE Bond ±º, AdheSE ±º, Tyrian ±º Contax ±ºÀ¸·Î ºÐ·ùÇÏ¿´´Ù. °¢ ±ºÀÇ Á¢ÂøÁ¦¸¦ °¢ ÀýÆíÀÇ ¹ý¶ûÁú Ç¥¸é¿¡ Àû¿ëÇÑ ÈÄ, Tygon tube¸¦ ÀÌ¿ëÇÏ¿© ±¤ÁßÇÕÇü º¹ÇÕ·¹Áø (Filtek Z250) ¶Ç´Â È­ÇÐÁßÇÕ º¹ÇÕ·¹Áø (Luxacore Smartmix Dual)À» Á¢ÂøÇÏ¿´´Ù. ½Ç¿ÂÀÇ Áõ·ù¼ö¿¡ 24½Ã°£ µ¿¾È º¸°üÇÑ ÈÄ, universal testing machineÀ» ÀÌ¿ëÇÏ¿© °¢ ½ÃÆíÀÇ º¹ÇÕ·¹Áø°ú ¹ý¶ûÁúÀÇ Á¢Âø°è¸éÀÌ ÆÄÀýµÉ ¶§±îÁö ºÐ´ç 1 mmÀÇ crosshead speed¸¦ °¡ÇÏ¿© ¹Ì¼¼Àü´Ü °áÇÕ°­µµ¸¦ ÃøÁ¤ÇÏ¿´´Ù. °¢ ±ºÀÇ ¹Ì¼¼Àü´Ü °áÇÕ°­µµÄ¡¿¡ ´ëÇÑ À¯ÀǼº °ËÁõÀº two-way ANOVA¿Í Tukey HSD°ËÁ¤ ¹× µ¶¸³Ç¥º» t °ËÁ¤À» ÀÌ¿ëÇÏ¿© p = 0.05 À¯ÀǼöÁØ¿¡¼­ ºÐ¼®ÇÏ¿´´Ù. ÁÖ»çÀüÀÚ Çö¹Ì°æ °üÂûÀ» À§ÇØ ¹ß°ÅÇÑ ´ë±¸Ä¡ÀÇ Çù¸éÀ̳ª ¼³¸éÀÇ ¹ý¶ûÁú ÀϺθ¦ Isomet Low Speed Saw·Î Àý´ÜÇÑ ÈÄ °¢ ±ºÀÇ Á¢ÂøÁ¦¿Í ±¤ÁßÇÕ º¹ÇÕ·¹Áø ¶Ç´Â È­ÇÐÁßÇÕ º¹ÇÕ·¹ÁøÀ» ÃàÁ¶ÇÏ¿© °¢ ±º´ç 2°³ÀÇ ½ÃÆíÀ» Á¦ÀÛÇÏ¿´´Ù. ÁÖ»çÀüÀÚ Çö¹Ì°æ ÇÏ¿¡¼­ ¹ý¶ûÁú°ú Á¢ÂøÁ¦ ¹× º¹ÇÕ·¹Áø °è¸éÀ» °üÂûÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù. 1. ±¤ÁßÇÕ°ú È­ÇÐÁßÇÕ º¹ÇÕ·¹Áø ¸ðµÎ¿¡¼­ SE Bond ±ºÀÇ ¹ý¶ûÁú¿¡ ´ëÇÑ ¹Ì¼¼Àü´Ü °áÇÕ °­µµ´Â ´Ù¸¥ 3°³ÀÇ ±ºº¸´Ù Åë°èÇÐÀûÀ¸·Î ³ô°Ô ³ªÅ¸³µ´Ù (p < 0.05). 2. ±¤ÁßÇÕ°ú È­ÇÐÁßÇÕ º¹ÇÕ·¹Áø ¸ðµÎ¿¡¼­ AdheSE ±º, Tyrian ±º Contax±ºÀÇ ¹ý¶ûÁú¿¡ ´ëÇÑ ¹Ì¼¼ Àü´Ü °áÇÕ °­µµ´Â Åë°èÇÐÀûÀ¸·Î À¯ÀÇÇÑ Â÷À̸¦ ³ªÅ¸³»Áö ¾Ê¾Ò´Ù. 3. µ¿ÀÏÇÑ Á¢ÂøÁ¦¸¦ »ç¿ëÇÑ °æ¿ì, ¸ðµç ±º¿¡¼­ ¹ý¶ûÁú¿¡ ´ëÇÑ ±¤ÁßÇÕ º¹ÇÕ·¹ÁøÀÇ ¹Ì¼¼Àü´Ü °áÇÕ°­µµ´Â È­ÇÐÁßÇÕ º¹ÇÕ·¹Áøº¸´Ù Åë°èÇÐÀûÀ¸·Î ³ô°Ô ³ªÅ¸³µ´Ù (p < 0.05). 4. ¸ðµç Á¢ÂøÁ¦¿Í ¹ý¶ûÁú °è¸éÀº ±ä¹ÐÇÑ Á¢ÇÕÀ» ³ªÅ¸³»¾î È­ÇÐÁßÇÕ º¹ÇÕ·¹Áø°ú Á¢ÂøÁ¦ °£¿¡ ºñÀûÇÕ¼ºÀÌ ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù.

This study was to compare the microshear bond strength (muSBS) of light- and chemically cured composites to enamel coupled with four 2-step self-etch adhesives and also to evaluate the incompatibility between 2-step self-etch adhesives and chemically cured composite resin. Crown segments of extracted human molars were cut mesiodistally, and a 1 mm thickness of specimen was made. They were assigned to four groups by adhesives used: SE group (Clearfil SE Bond) AdheSE group (AdheSE), Tyrian group (Tyrian SPE/One-Step Plus), and Contax group (Contax) Each adhesive was applied to a cut enamel surface as per the manufacturer¡¯¡¯s instruction. Light-cured (Filtek Z250) or chemically cured composite (Luxacore Smartmix Dual) was bonded to the enamel of each specimen using a Tygon tube. After storage in distilled water for 24 hours, the bonded specimens were subjected to muSBS testing with a crosshead speed of 1 mm/minute. The mean muSBS (n=20 for each group) was statistically compared using two-way ANOVA, Tukey HSD, and t test at 95% level. Also the interface of enamel and composite was evaluated under FE-SEM. The results of this study were as follows ; 1. The muSBS of the SE Bond group to the enamel was significantly higher than that of the AdheSE group, the Tyrian group, and the Contax group in both the light-cured and the chemically cured composite resin (p < 0.05). 2. There was not a significant difference among the hdheSE group, the Tyrian group, and the Contax group in both the light-cured and the chemically cured composite resin. 3. The muSBS of the light-cured composite resin was significantly higher than that of the chemically cured composite resin when same adhesive was applied to the enamel (p < 0.05). 4. The interface of enamel and all 2-step self-etch adhesives showed close adaptation, and so the incompatibility of the chemically cured composite resin did not show.

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Microshear bond strength;Self-etch adhesives;Incompatibility;Chemical-cured composites

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