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A STUDY ON THE MICROLEAKAGE OF PIT AND FISSURE SEALANTS WITH DIFFERENT FILLING AMOUNT

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Abstract

º» ¿¬±¸´Â Ä¡¸é¿­±¸Àü»öÀçÀÇ ÃæÀü·®ÀÌ ¹Ì¼¼´©Ãâ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºñ±³ºÐ¼®ÇÒ ¸ñÀûÀ¸·Î ½Ç½ÃµÇ¾ú´Ù. 6°³ÀÇ ±ºÀ¸·Î ³ª´©¾î °¢°¢ ´Ù¸¥ ÃæÀü·®, Ä¡¸é Àüó¸®, ÃæÀüÀ縦 Àû¿ëÇÏ¿© ¹Ì¼¼´©Ãâ ¾ç»óÀ» ºñ±³ÇÏ¿´´Ù.
60°³ÀÇ Á¦ 3 ´ë±¸Ä¡¸¦ 3°³ÀÇ ±ºÀ¸·Î ³ª´©¾î °¢ ±º´ç 20°³¾¿ ½ÃÆíÀ» ±¸¼ºÇÏ¿´´Ù. °¢ Ä¡¾Æ´Â ±³ÇÕ¸éÀ» µÎ ºÎºÐÀ¸·Î ³ª´©¾î ÇÑ ºÎÀ§´Â ÃæÀüÀçÀÇ ÆøÀÌ 1mmÀÌÇÏ°¡ µÇµµ·Ï ÃæÀüÇÏ°í(1,3,5±º), ³ª¸ÓÁö ÇÑ ºÎÀ§´Â 2mmÀÌ»ó µÇµµ·Ï ÃæÀüÀ» ÇÏ¿´´Ù(2,4,6±º). 1,2±ºÀº »êó¸®ÈÄ Helioseal F·Î Ä¡¸é¿­±¸Àü»öÀ» ½Ç½ÃÇÏ¿´°í, 3,4±ºÀº »êó¸®ÈÄ »ó¾ÆÁú Á¢ÂøÁ¦·Î Ä¡¸é Àüó¸®ÇÑ ÈÄ Helioseal F·Î, 5, 6±ºÀº À¯µ¿¼º º¹ÇÕ·¹ÁøÀÎ Tetric Flow·Î Ä¡¸é ¿­±¸Àü»öÀ» ½Ç½ÃÇÏ¿´´Ù. 500ȸÀÇ ¿­¼øȯ ¹× »ö¼ÒħÅõ ÈÄ, ¹Ì¼¼´©Ãâµµ¸¦ °üÂûÇÏ°í ºñ±³ºÐ¼®ÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. µ¿ÀÏÇÑ ÃæÀüÆøÀ» Àû¿ëÇÏ¿´À» °æ¿ì, ¹Ì¼¼´©Ãâµµ´Â 5±º<3±º<1±º°ú 6±º<4±º<2±ºÀÇ ¼øÀ¸·Î ³ªÅ¸³µÀ¸³ª À¯ÀÇÇÑ Â÷ÀÌ´Â ¾Æ´Ï¾ú´Ù(p>0.05)
2. µ¿ÀÏÇÑ Àç·á¿Í Ä¡¸é󸮸¦ ÇϵÇ, ÃæÀüÆø¸¸À» ´Þ¸®ÇÑ ±ºµé, Áï 1±º°ú 2±º, 3±º°ú 4±º, 5±º°ú 6±º°£ÀÇ ¹Ì¼¼´©Ãâµµ¿¡¼­´Â À¯ÀÇÇÑ Â÷À̸¦ º¸¿´´Ù(p<0.05).
3. ¹Ì¼¼´©ÃâÀº Àü»öÀçÀÇ ¹°¼º, »ó¾ÆÁú Á¢ÂøÁ¦ Àüó¸® ¿©ºÎ º¸´Ù Àü»öÀçÀÇ ÃæÀü·®¿¡ ´õ ¸¹Àº ¿µÇâÀ» ¹Þ¾Ò´Ù.
With the purpose of evaluating the effect of filling amount of pit and fissure sealants on the microleakage, 6 groups of specimens with different filling amount, filling materials and surface pretreatment were investigated
Sixty permanent third molars were divided into three groups. The occlusal surface of each tooth was divided into two parts: the filling width of one part was below 1mm (group1. 3, 5), and in the other part more than 2mm (group 2, 4, 6). Group 1 and 2: Helioseal F was applied directly to etched enamel: Group 3 and 4: Helioseal F was applied to etched and scotchbond Multi-purpose plus pre-treated enamel; Group 5 and 6: Tetric Flow was applied. After 500 times thermocycling and dye infiltration, we evaulated the microleakage. The results were as follows :
1. The mean microleakage score at each width were increased in the following order:group 5<3<1, and group 6<4<2.
2. In comparing the groups with same material and surface pretreatment but with different filling width
(group 1 versus 2, 3 versus 4, 5 versus 6), the microleakage scores were significantly different.
3. The microleage was affected by filling amount of pit and fissure sealants than filling materials and dentin
bonding agent pretreatment.

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Ä¡¸é¿­±¸Àü»öÀç;ÃæÀü·®;¹Ì¼¼´©Ãâ;Pit and fissure sealant;Filling amount;Microleakage

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