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COMPARISON OF MICROLEAKAGE IN SEALANT REPAIRED WITH DIFFERENT SURFACE TREATMENT

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±è¿µÀç ( Kim Young-Jae ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç ¹× Ä¡Çבּ¸¼Ò
±èÁ¤¿í ( Kim Jung-Wook ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç ¹× Ä¡Çבּ¸¼Ò
Àå±âÅà( Jang Ki-Taeg ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç ¹× Ä¡Çבּ¸¼Ò
ÀÌ»óÈÆ ( Lee Sang-Hoon ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç ¹× Ä¡Çבּ¸¼Ò
ÇѼ¼Çö ( Hahn Se-Hyun ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç ¹× Ä¡Çבּ¸¼Ò
±èÁ¾Ã¶ ( Kim Chong-Chul ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç ¹× Ä¡Çבּ¸¼Ò

Abstract

Ä¡¸é¿­±¸Àü»öÀº ¼ö ½Ê³â°£ ±³ÇÕ¸é ¿ì½ÄÀÇ ¿¹¹æ¿¡ °¡Àå È¿°úÀûÀÎ ¹æ¹ý Áß ÇÑ°¡Áö·Î ¾Ë·ÁÁ® ¿Ô´Ù. ÇÏÁö¸¸ Ä¡¸é¿­±¸Àü»öÁ¦ÀÇ ¸¶¸ð¿Í ÆÄÀý ¶§¹®¿¡ Ä¡¸é¿­±¸Àü»öÁ¦ÀÇ Àç½Ã¼ú ¶Ç´Â ¼ö¸®¸¦ ÇÊ¿ä·Î ÇÏ°Ô µÇ¾ú´Ù. º» ¿¬±¸ÀÇ ¸ñÀûÀº ÆÄ¼ÕµÈ Ä¡¸é¿­±¸Àü»öÁ¦¸¦ ¼ö¸®ÇÒ ¶§ Ä¡Áú°ú ÀÜ¿© Àü»öÁ¦ÀÇ Ç¥¸éó¸® ¹æ¹ý¿¡ µû¸¥ ¹Ì¼¼´©Ãâ Â÷À̸¦ ¾Ë¾Æº¸°íÀÚ ÇÏ´Â °ÍÀÌ´Ù. 120°³ÀÇ ¿µ±¸ ´ë±¸Ä¡¿¡ Ä¡¸é¿­±¸Àü»öÁ¦¸¦ Àû¿ëÇÏ°í ÀÎÀ§ÀûÀÎ ÆļÕÀ» ¸¸µç µÚ ÀΰøŸ¾×¿¡ 4ÁÖµ¿¾È º¸°üÇÏ¿´´Ù. 4ÁÖ ÈÄ ±Ù½É ¶Ç´Â ¿ø½ÉÀÇ Ä¡¸é¿­±¸Àü»öÁ¦°¡ ¿ÏÀüÈ÷ ÆÄ¼Õ ¾ç»óÀ» ³ªÅ¸³»´Â Ä¡¾Æ 60°³¸¦ ¼±ÅÃÇÏ¿© °¢°¢ 15°³¾¿ 4°³ ±ºÀ¸·Î ³ª´©¾î ½ÇÇè¿¡ »ç¿ëÇÏ¿´´Ù. °¢ ±ºÀ» »êºÎ½Ä¸¸ ½ÃÇàÇÑ °æ¿ì(1±º), air-abrasion¸¸ ½ÃÇàÇÑ °æ¿ì(2±º), »êºÎ½Ä ÈÄ °áÇÕÁ¦¸¦ Àû¿ëÇÑ °æ¿ì(3±º), air-abrasion ÈÄ °áÇÕÁ¦¸¦ Àû¿ëÇÑ °æ¿ì(4±º)·Î ³ª´² °¢°¢ÀÇ Ä¡¾Æ¸¦ Ç¥¸éó¸®ÇÑ ÈÄ Ä¡¸é¿­±¸Àü»öÁ¦¸¦ µµÆ÷ÇÏ¿´´Ù. °í¿Â$(55^{\circ}C)$°ú Àú¿Â$(5^{\circ}C)$¿¡¼­ °¢°¢ 30Ãʾ¿ 500ȸÀÇ ¿­¼øȯÀ» ½ÃÇàÇÑ µÚ ¹Ì¼¼´©Ãâµµ¸¦ °Ë»çÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. Ä¡¸é¿­±¸Àü»öÁ¦/Ä¡¸é¿­±¸Àü»öÁ¦ °æ°è¸é¿¡¼­ ¹Ì¼¼´©Ãâµµ´Â °áÇÕÁ¦ »ç¿ë À¯¹«¿¡ °ü°è¾øÀÌ air-abrasionÀ» ó¸®ÇÑ 2±º, 4±º¿¡¼­ »êºÎ½ÄÀ» »ç¿ëÇÑ 1±º, 3±ºº¸´Ù ³·Àº °ªÀ» º¸¿´°í(p<0.05) 1±º°ú 2±º, 3±º°ú 4±º »çÀÌ¿¡´Â Åë°èÀû À¯ÀÇÂ÷°¡ ¾ø¾ú´Ù(p>0.05).
2. Ä¡¸é¿­±¸Àü»öÁ¦/Ä¡¾Æ °æ°è¸é¿¡¼­ ¹Ì¼¼´©Ãâµµ´Â °áÇÕÁ¦¸¦ »ç¿ëÇÑ 3±º, 4±º¿¡¼­ °áÇÕÁ¦¸¦ »ç¿ëÇÏÁö ¾ÊÀº 1±º, 2±ºº¸´Ù ³·Àº °ªÀ» º¸¿´°í(p<0.05) »êºÎ½ÄÀ» »ç¿ëÇÑ 1, 3±º°ú air-abrasionÀ» »ç¿ëÇÑ 2, 4±º »çÀÌ¿¡´Â Åë°èÀû À¯ÀÇÂ÷°¡ ¾ø¾ú´Ù(p>0.05).
3. SEM »ó¿¡¼­ Ä¡¸é¿­±¸Àü»öÁ¦¸¦ »êºÎ½Ä ó¸®ÇÏ¿´À» ¶§ Ç¥¸é°ÅÄ¥±âÀÇ Áõ°¡°¡ Àû¾úÀ¸³ª air-abrasion ÇÏ¿´À» °æ¿ì Ç¥¸é°ÅÄ¥±â°¡ ÇöÀúÇÏ°Ô Áõ°¡ÇÏ´Â °ÍÀ» °üÂûÇÏ¿´´Ù.

The aim of this study was to investigate whether differences in surface treatment prior to repair influenced the seal of a resin fissure sealant placed on the occlusal surfaces of permanent molar teeth. One hundred and twenty extracted human molars were selected and a light curing sealant was placed on their occlusal surface following cleaning by prophylaxis and acid etching. The teeth were deliberately damaged, and then stored in artificial saliva for four weeks. Sixty teeth with the desired morphology of sealant failure were randomly divided into four groups where one group was treated with only etching agent, another by only air-abrasion, another by applying an etching agent followed by a bonding agent, and the last by air-abrasion followed by a bonding agent each. After sealant application, the samples were thermocycled and the degree of microleakage was determined. The results were as follows :
1. In the sealant/sealant interface group 2(0.22), 4(0.23) using air-abrasion showed a significantly lower microleakage score than group 1(0.38), 3(0.35) using an etching agent(p<0.05). There were no statistically significant differences(p>0.05) between groups 1, 2 and groups 3, 4.
2. In the sealant/tooth interface, group 3(0.20), 4(0.20) which used a bonding agent showed a significantly lower microleakage score than group 1(0.35), 2(0.40) (p<0.05). There were no statistically significant differences(p>0.05) between groups 1, 3 and groups 2, 4.
3. In SEM examination, while sealant surfaces treated with etching did not result in highly rough surfaces, those treated with air-abrasion did show rough surfaces.

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Sealant;Repair;Acid etching;Air-abrasion;Microleakage

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