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A STUDY ON MICROLEAKAGE OF PREVENTIVE RESIN RESTORATION

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±¸ÇöÁ¤ ( Koo Hyun-Jung ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
ÀÌ»óÈÆ ( Lee Sang-Hoon ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
ÇѼ¼Çö ( Hahn Se-Hyun ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç ¹× Ä¡ÀÇÇבּ¸¼Ò

Abstract

¿¹¹æÀû ·¹Áø¼öº¹Àº ±³ÇÕ¸é ¿­±¸Àü»öÀÇ °³³äÀ» È®´ëÇÏ¿© Ãʱâ¿ì½Ä¿¡¸¸ ±¹ÇÑÇÑ ¿Íµ¿À» Çü¼ºÇÏ¿© º¹ÇÕ·¹ÁøÀ¸·Î ÃæÀüÇÑ ÈÄ ³ª¸ÓÁö °ÇÀüÇÑ ºÎÀ§ÀÇ ¼Ò¿Í¿­±¸¸¦ Ä¡¸é¿­±¸Àü»öÀç·Î µµÆ÷ÇÏ´Â °ÍÀÌ´Ù. ÃæÀüÁ¦°¡ ÷°¡µÈ Ä¡¸é¿­±¸Àü»öÀç·Î¼­ ÀÛÀº ¿Íµ¿ÀÇ ¼öº¹µµ °¡´ÉÇÏ´Ù´Â »õ·Î¿î ¹æ¹ýÀº ¼Ò¾ÆȯÀÚÀÇ Ä¡·á½Ã ¼úÀÚ¿Í È¯ÀÚ ¸ðµÎ¿¡°Ô µµ¿òÀ» ÁÙ ¼ö ÀÖÀ» °ÍÀÌ´Ù. ±×·¯³ª ¿¹¹æÀû ·¹Áø¼öº¹À» ½ÃÇàÇÏ¿© ºñ±³ÇÑ ¿¬±¸°¡ ¾ÆÁ÷±îÁö´Â ºÎÁ·ÇÑ ½ÇÁ¤ÀÌ´Ù. ÀÌ¿¡ ÀúÀÚµéÀº 4°¡Áö ¹æ¹ýÀÇ ¿¹¹æÀû ·¹Áø¼öº¹½ÃÀÇ ¹Ì¼¼´©ÃâÀ» ºñ±³Çغ¸°íÀÚ ÇÏ¿´À¸¸ç ·¹Áø¼öº¹¸¸À» ÇÑ °æ¿ìµµ ÇÔ²² ºñ±³ÇÏ¿© º¸¾Ò´Ù. 55°³ÀÇ »ó, ÇÏ¾Ç ¼Ò±¸Ä¡¸¦ ÁغñÇÏ¿© I±Þ¿Íµ¿À» ±³Çո鿡 Çü¼ºÇÏ°í ´ÙÀ½°ú °°ÀÌ ¼öº¹ÇÏ¿´´Ù. Á¦1±º : ¿Íµ¿À» º¹ÇÕ·¹Áø(Z-100)À¸·Î ¼öº¹ Á¦2±º : ¿Íµ¿À» º¹ÇÕ·¹Áø(Z-100)À¸·Î ¼öº¹ ÁßÇÕÈÄ, ºñÃæÀü Àü»öÀçÀÎ Teethmate F-1À¸·Î ¼Ò¿Í¿­±¸µµÆ÷ Á¦3±º : ¿Íµ¿À» º¹ÇÕ·¹Áø(Z-100)À¸·Î ¼öº¹ ÁßÇÕÈÄ, ÃæÀü Àü»öÀçÀÎ Ultraseal XT-plus·Î ¼Ò¿Í¿­±¸µµÆ÷ Á¦4±º : ¿Íµ¿°ú ¼Ò¿Í¿­±¸¸¦ ÇÑ ¹ø¿¡ Ultraseal XT-plus·Î ¼öº¹ Á¦5±º : ¿Íµ¿°ú ¼Ò¿Í¿­±¸¸¦ ³ª´©¾î Ultraseal XT-plus·Î ¼öº¹ À§¿Í °°ÀÌ Ã³¸®ÇÑ Ä¡¾Æ¸¦ ¿Í ÀÇ ¼öÁ¶¿¡ ¹ø°¥¾Æ 30Ãʾ¿ 500ȸÀÇ ¿­¼øȯÀ» ½Ç½ÃÇÏ°í 1% methylene blue¿ë¾×¿¡ 24½Ã°£ ´ã±Ù ÈÄ ¼ö¼¼ÇÏ°í Åõ¸í·¹Áø¿¡ ¸Å¸ôÇÏ¿´´Ù. ¸Å¸ôµÈ Ä¡¾Æ¸¦ Çù¼³ÃøÀ¸·Î Ä¡¾ÆÀåÃà¹æÇâÀ¸·Î ÆòÇàÇÏ°Ô Àý´ÜÇÑ ÈÄ ÀÔüÇö¹Ì°æÀ¸·Î ¿°»ö¿ë¾×ÀÇ Ä§ÅõÁ¤µµ¸¦ °üÂûÇÏ¿© ´ÙÀ½ÀÇ °á°ú¸¦ ¾ò¾ú´Ù. 1. Æò±Õ ¹Ì¼¼´©ÃâÀº 4±º¿¡¼­ °¡Àå ³ô¾Ò°í, 3±º¿¡¼­ °¡Àå ³·¾Ò´Ù. Æò±Õ ¹Ì¼¼´©ÃâÀº 4>1>5>2>3±ºÀÇ ¼øÀ¸·Î °¨¼ÒÇÏ¿´´Ù. 2. ±º°£ÀÇ ¹Ì¼¼´©Ãâ ºñ±³¿¡¼­ 1±ºÀº 5±º°ú´Â Åë°èÇÐÀûÀ¸·Î À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾úÀ¸³ª 2±º, 3±ºº¸´Ù À¯ÀÇÇÏ°Ô ³ôÀº ¹Ì¼¼´©ÃâÀ» º¸¿´°í(p<0.05), 4±ºº¸´Ù´Â À¯ÀÇÇÏ°Ô ³·Àº ¹Ì¼¼´©ÃâÀ» º¸¿´´Ù(p<0.05). 3. 2±ºÀº 3±º°ú´Â Åë°èÇÐÀûÀ¸·Î À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾úÀ¸³ª 4±º, 5±ºº¸´Ù´Â À¯ÀÇÇÏ°Ô ³·Àº ¹Ì¼¼´©ÃâÀ» º¸¿´´Ù(p<0.05). 4. 3±ºÀº 4, 5±ºº¸´Ù Åë°èÇÐÀûÀ¸·Î À¯ÀÇÇÏ°Ô ³·Àº ¹Ì¼¼´©ÃâÀ» º¸¿´´Ù(p<0.05). 5. 5±ºÀº 4±ºº¸´Ù Åë°èÇÐÀûÀ¸·Î À¯ÀÇÇÏ°Ô ³·Àº ¹Ì¼¼´©ÃâÀ» º¸¿´´Ù(p<0.05).

Preventive resin restoration, extended concept of occlusal pit and fissure sealing, is procedure composed of as follows. Cavity preparation is limited to areas of initial caries The cavity is then restored with composite resin, while other sound pits and fissures are sealed with pit and fissure sealant. If pit and assure sealant with which microrestoration is possible is used, it may be of great benefit to both patient and operator in case of difficult-to-control children s treatment. However study on preventive resin restoration using this kind of materials have been scarce. The purpose of this study was to compare the microleakage of four different modes of preventive resin restoration. Restoration using only composite resin was compared together Fifty-five bicuspids were prepared with small class I cavity preparation on the occlusal surface, divided into the following groups and restored accordingly. Group 1 : Cavity was restored with Z-100 composite resin Group 2 : Cavity was restored with Z-100 composite resin. Pits and fissures were then sealed with Teethmate F-1 Group 3 : Cavity was restored with Z-100 composite resin Pits and fissures were then sealed with Ultraseal XT-plus Group 4 : Cavity and pits and fissures were restored with Ultraseal XT-plus altogrether Group 5 : Cavity was restored with Ultraseal XT-plus. Pits and fissures were then sealed with the same material. After restoration, the samples were thermocycled 500 times between and with a dwell time of 30 seconds. After thermocycling, the samples were dipped into 1% methylene blue solution for 24 hours, then rinsed with tap water. The teeth were then embedded in resin and cut buccolingually along the tooth axis and observed with a stereomicroscope to determine the degree of microleakage. The results were as follows : 1. Group 4 showed the greatest microleakage, while group 3, showed the least. The mean microleakage decreased in the following order:4>1>5>2>3. 2. There was no stastically significant difference between group 1 and group 5(p>0.05). However, group 1 showed significantly greater microleakage compared to group 2 and 3(p<0.05) Group 1 showed significantly less microleakage compared to group 4(p<0.05). 3. Group 2 showed no statistically significant difference compared to group 3(p>0.05). However group 2 showed significantly less microleakage compared to group 4 and 5(p<0.05) 4. Group 3 showed significantly less microleakage compared to group 4 and 5(p<0.05). 5. Group 5 showed significantly less microleakage than group 4(p<0.05).

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Preventive resin restoration;Microleakage;Filled sealant;Unfilled sealant

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