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EFFECT OF BISCOVER ON THE MARGINAL MICROLEAKAGE OF COMPOSITE RESIN RESTORATION

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Abstract

º» ¿¬±¸´Â º¹ÇÕ·¹ÁøÀ» ±¤Á¶»çÇϱâ Àü°ú ±¤Á¶»çÇÑ ÈÄ¿¡ Ç¥¸é Àü»öÁ¦ÀÎ Biscover¸¦ Àû¿ëÇÏ¿© À̵鿡 ´ëÇÑ º¯¿¬ ¹Ì¼¼´©ÃâÀ» Æò°¡ÇÏ°í, ¶ÇÇÑ Ç¥¸é Àü»öÁ¦¸¦ Àû¿ëÇÏÁö ¾Ê´Â º¹ÇÕ·¹Áø ¼öº¹¹°°úÀÇ ¹Ì¼¼´©Ãâ Â÷À̸¦ ºñ±³Çϱâ À§ÇÏ¿© ½ÃÇàÇÏ¿´´Ù. 30°³ÀÇ ¹ß°ÅµÈ ´ë±¸Ä¡ÀÇ Çù¸é Ä¡°æºÎ¿¡ 5±Þ ¿Íµ¿À» Çü¼ºÇÏ¿© ´ÙÀ½°ú °°ÀÌ 3°³ÀÇ ±ºÀ¸·Î ºÐ·ùÇÏ¿´´Ù; ´ëÁ¶±ºÀº º¹ÇÕ·¹Áø Ç¥¸é¿¡ Biscover¸¦ Àû¿ëÇÏÁö ¾ÊÀº ±º, 1±ºÀº º¹ÇÕ·¹ÁøÀ» ±¤Á¶»çÇÏ°í ¸¶¹«¸®ÇÑ ÈÄ Biscover¸¦ Àû¿ëÇÑ ±º, 2±ºÀº º¹ÇÕ·¹ÁøÀ» ±¤Á¶»çÇÏÁö ¾Ê°í Biscover¸¦ Àû¿ëÇÑ ±º. °¢ ±ºÀÇ ½ÃÆíÀº ½Ç¿ÂÀÇ Áõ·ù¼ö¿¡ 48½Ã°£ µ¿¾È º¸°üÇÑ ÈÄ $5^{\circ}C$¿Í $55^{\circ}C$¿¡¼­ 1,000ȸÀÇ ¿­ ¼øȯÀ» ½ÃÇàÇÏ°í $2\%$ methylene blue¿ë¾×¿¡ 4½Ã°£ µ¿¾È ħÀû½ÃÄ×´Ù. 20¹èÀ²ÀÇ ±¤ÇÐ ÀÔüÇö¹Ì°æ ÇÏ¿¡¼­ °¢ ±ºÀÇ ±³ÇÕ¸éÃø°ú Ä¡ÀºÃø º¯¿¬ÀÇ »ö¼ÒħÅõ Á¤µµ¸¦ °üÂûÇÏ¿© ¹Ì¼¼´©Ãâ Á¡¼ö¸¦ ¾òÀºÈÄ, °¢±º °£ÀÇ À¯ÀǼºÀ» °ËÁ¤ÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù. 1. 2±ºÀº 1±ºº¸´Ù ±³ÇÕ¸éÃø°ú Ä¡ÀºÃø º¯¿¬ ¸ðµÎ¿¡¼­ ³ôÀº ¹Ì¼¼´©ÃâÀ» º¸¿´À¸³ª Åë°èÇÐÀûÀ¸·Î À¯ÀÇÇÑ Â÷ÀÌ´Â ¾ø¾ú´Ù (p > 0.05). 2. ´ëÁ¶±ºÀº ±³ÇÕ¸éÃø º¯¿¬¿¡¼­ 1±º°ú 2±ºº¸´Ù ¾à°£ ³ôÀº ¹Ì¼¼´©ÃâÀ» º¸¿´À¸¸ç , Ä¡ÀºÃø º¯¿¬¿¡¼­ 1±ºº¸´Ù ¾à°£ ³ô°Ô ±×¸®°í 2±º°ú ºñ½ÁÇÑ ¹Ì¼¼´©ÃâÀ» º¸¿´´Ù (p > 0.05). 3. ´ëÁ¶±º°ú 2±ºÀº ±³ÇÕ¸éÃø º¸´Ù Ä¡ÀºÃø º¯¿¬¿¡¼­ Åë°èÇÐÀûÀ¸·Î ³ôÀº ¹Ì¼¼´©ÃâÀ» º¸¿´À¸¸ç (p < 0.05), 1±ºÀº ±³ÇÕ¸éÃø°ú Ä¡ÀºÃøÀÇ º¯¿¬ ¹Ì¼¼´©Ãâ °£¿¡ Åë°èÇÐÀûÀÎ Â÷À̸¦ ³ªÅ¸³»Áö ¾Ê¾Ò´Ù (p > 0.05). º» ¿¬±¸¸¦ Á¾ÇÕÇϸé, Biscover´Â ÁßÇÕµÈ º¹ÇÕ·¹Áø Ç¥¸é¿¡ Àû¿ëÇÒ °æ¿ì Ä¡ÀºÃø º¯¿¬ÀÇ ¹Ì¼¼´©ÃâÀ» °¨¼Ò½ÃÅ°´Âµ¥ È¿°úÀûÀ̾ú´Ù.

The purpose of this study was to compare the effect on marginal leakage of a resin surface sealant (Biscover) applied before or after polymerization of composite resin to unsealed composite restorations. Thirty Class V cavities with the occlusal margin in enamel and cervical margin in dentin or cementum were prepared on the buccal surfaces of sound extracted molars and restored with a microfilled light-cured composite resin (Micronew). Restorations were randomly assigned into one of three equal groups (n = 10): a control group - no surface sealing, group 1 - applied Biscover after polymerization of the composite resin. and group 2 - applied Biscover before polymerization of the composite resin. Specimens were thermocycled, immersed in a $20\%$ methylene blue solution for 4 hoots, sectioned longitudinally, and analyzed for leakage at the occlusal and gingival margins. The results of this study were as follows 1. In sealed group, group 2 showed higher microleakage than group 1 at both occlusal and gingival margins. but there was no significant difference between two groups (p > 0.05). 2. Unsealed control group showed a little higher microleakage than sealed group at occlusal margins, and a little Higher or similar microleakage than sealed group at gingival margins (p > 0.05) 3. Control group and group 2 showed significantly less microleakage at the occlusal margins, but group 1 showed no significantly difference between microleakage at the occlusal and gingival margins.

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