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THE EFFECT OF PRIMER ON PENETRATION OF SEALANT

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Abstract

¼¼Æ÷³» À¯¸®Ä®½·(free calcium, Ca^(2+))Àº ¼¼±Õ¿¡¼­ °íµîµ¿¹°¿¡ À̸£±â±îÁö °ÅÀÇ ¸ðµç ¼¼Æ÷¿¡¼­ ¼¼Æ÷ °íÀ¯ÀÛ¿ëÀ» Á¶ÀýÇÏ´Â Áß¿äÇÑ ¼¼Æ÷³» ½ÅÈ£Àü´Þü°è(si2nal transduction system)ÀÇ ¸Å°³Ã¼ÀÌ´Ù. Ÿ¾×¼± ¼¼Æ÷¿¡¼­ ºÎ±³°¨ ½Å°æ ÀÚ±ØÀ¸·Î Ÿ¾×ºÐºñ°¡ Áõ°¡µÉ ¶§¿¡µµ ¼¼Æ÷³» Ca^(2+) ³óµµ Áõ°¡°¡ °¡Àå Áß¿äÇÑ ¿ªÇÒÀ» ÇÑ´Ù. ±×·¯³ª ÃéÀå(pancreas)ÀÇ °æ¿ì ¼¼Æ÷³» Ca^(2+) ÀÌ¿Ü¿¡µµ ÀÎÁ¢¼¼Æ÷¸¦ Àü±âÀû, È­ÇÐÀûÀ¸·Î ¿¬°áÇØÁÖ´Â gap junctionÀÌ ¿ÜºÐºñ ±â´ÉÀ» Á÷Á¢ÀûÀ¸·Î Á¶ÀýÇÒ °¡´É¼³ÀÌ Á¦½ÃµÇ¾ú´Ù. Ÿ¾×¼± ¼¼Æ÷¿¡¼­µµ ¼¼Æ÷¸·¿¡ °í³óµµÀÇ gap junctionÀÌ Á¸ÀçÇÏ°í ÀÖÀ¸¸ç, gap junctionÀ» ÅëÇØ ÀÎÁ¢¼¼Æ÷µéÀÌ Àü±âÀû, È­ÇÐÀûÀ¸·Î ¿¬°èµÇ¾î ÀÖ¾î gap junctionÀÌ Å¸¾×¼± ¼¼Æ÷ÀÇ ±â´ÉÀ» Á÷Á¢ÀûÀ¸·Î Á¶ÀýÇÒ °¡´É¼ºÀ» ³»Æ÷ÇÏ°í ÀÖ´Ù. µû¶ó¼­ gap junctionÀÌ Å¸¾×¼±ÀÇ Å¸¾×ºÐºñ ÀÛ¿ë¿¡µµ Áß¿äÇÑ ¿ªÇÒÀ» Çϸç ÀÌ·¯ÇÑ ÀÛ¿ëÀÌ ¼¼Æ÷³»Ca^(2+) ³óµµ¸¦ Á¶ÀýÇÏ¿© ÀÌ·ç¾îÁú °ÍÀ̶ó´Â °¡Á¤ÇÏ¿¡ À̸¦ È®ÀÎÇÏ´Â ½ÇÇèÀ» ½ÃÇàÇÏ¿´´Ù.
ÈòÁã ¾ÇÇϼ±¿¡¼­ À¯¸®µÇ´Â Ÿ¾×¾çÀ» ÃøÁ¤Çϱâ À§Çؼ­ ¾ÇÇϼ±À¸·Î Ç÷¾×À» °ø±ÞÇÏ´Â µ¿¸Æ¿¡ °¡´Â °üÀ» »ðÀÔÇÏ¿© »ý¸® ½Ä¿°¼ö¸¦ °ü·ùÇϸ鼭 Ÿ¾×¼±°üÀ» ÅëÇØ Å¸¾×À» äÃëÇÏ¿´´Ù. ¼¼Æ÷³» Ca^(2+) ³óµµ´Â ºÐ¸®ÇÑ ¾ÇÇϼ± acini ³»¿¡ Ca^(2+)³óµµ º¯È­¿¡ ¹Î°¨ÇÏ°Ô ¹ÝÀÀÇÏ´Â Çü±¤¹°ÁúÀÎ fura-2¸¦ ÃàÀû½ÃÅ°°í Çü±¤ ºÐ¼®±â¸¦ »ç¿ëÇÏ¿© Çü±¤°­µµ¸¦ ÃøÁ¤ÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. CCh Åõ¿©·Î Ÿ¾× ºÐºñ°¡ Áõ°¡ÇÏ¿´À» ¶§ gap junctionÀ» ºÀ¼âÇÏ´Â ¾à¹°ÀÎ octanol(1 mM)À» Åõ¿©Çϸé Ÿ¾×ºÐºñ°¡ ºÀ¼âµÇ¾úÀ¸¸ç ÀÌ´Â °¡¿ªÀû ¹ÝÀÀÀ̾ú´Ù.
2. CChÅõ¸ç·Î ¼¼Æ÷³» Ca^(2+) ³óµµ°¡ Áõ°¡ÇÏ¿´À» ¶§ 1mM octiaolÀ» Åõ¿©ÇÏ¸é ¼¼Æ÷³» Ca^(2+) ³óµµ°¡ CChÅõ¿©ÀüÀÇ »óÅ·Π°¨¼ÒµÇ¾ú´Ù.
3. OctanolÀº CCh¿¡ ÀÇÇÏ¿© À¯¹ßµÈ Ãʱâ Ca^(2+) Áõ°¡¸¦ ¾ïÁ¦ÇÏÁö´Â ¸øÇÑ ¹Ý¸é¿¡ Èıâ Ca^(2+) ³óµµ¸¦ °¨¼Ò½ÃÄ×´Ù.
4. ¼¼Æ÷¸· Ca^(2+) Åë·Î¸¦ ¿­¾îÁÖ´Â ¾à¹°ÀÎ thapsigargin(1 ¥ìM)À» Åõ¿©ÇÏ¿© ¼¼Æ÷³» Ca^(2+) ³óµµ¸¦ Áõ°¡½ÃŲ ÈÄ ImM octanolÀ» Åõ¿©ÇÏ¸é ¼¼Æ÷³» Ca^(2+) ³óµµ°¡ thapsigargin Åõ¿© ÀüÀÇ »óÅ·Π°¨¼ÒÇÏ¿´´Ù.
5. 2,5-di-tert-butyl-1, 4-benzohydroquinone(TBQ)ÀÇ Åõ¿©·Î ¼¼Æ÷¸·À» ÅëÇÑ Ca^(2+) ³óµµÀÇ ÁÖ±âÀû º¯µ¿ÀÎ Ca^(2+)ÀÇ oscillationÀÌ À¯¹ßµÇ¾ú´Âµ¥, À̶§ 1mM octanolÀ» Åõ¿©ÇÑ °ædn¿¡ Ca^(2+) ³óµµÀÇ oscillationÀÌ Á¤ÁöÇÏ¿© ¿ª½Ã gap junctionÀ» ºÀ¼âÇϸé TBQ¿¡ ÀÇÇؼ­ À¯¹ßµÈ ¼¼Æ÷³» Ca^(2+) ³óµµÀÇ ÁÖ±âÀû º¯µ¿ÀÌ »ç¶óÁö°í Ca^(2+)³óµµÀÇ °¨¼Ò°¡ ³ªÅ¸³²À» È®ÀÎÇÏ¿´´Ù.
6. Gap junctionÀ» ºÀ¼âÇÏ´Â ¶Ç ´Ù¸¥ ¾à¹°ÀÎ glycyrrhetinic acid(100 ¥ìM)µµ CCh ÀÚ±ØÀ¸·Î ÀÎÇÑ Å¸¾×ºÐºñ¸¦ ¾ïÁ¦ÇÏ¿´´Ù.
ÀÌ»óÀÇ °á°ú·Î ¹Ì·ç¾î gap junctionÀº ÈòÁã ¾ÇÇϼ± ¼¼Æ÷·ÎºÎÅÍÀÇ Å¸¾×ºÐºñ Á¶Àý¿¡ Áß¿äÇÑ ¿ªÇÒÀ» Çϴµ¥, ÀÌ´Â gap junctionÀÌ ¼¼Æ÷¸· Ca^(2+) Åë·Î¸¦ Á¶ÀýÇÔÀ¸·Î½á ¼ö¿ëü ÀÚ±ØÀ¸·Î À¯¹ßµÈ ¼¼Æ÷³» Ca^(2+) ³óµµ º¯È­¿¡ ¿µÇâÀ» ¹ÌÄ£ °á°úÀÎ °ÍÀ¸·Î ÃßÃøµÈ´Ù.

The objective of this study is to confirm the effect of dentine bonding primer application on pen¡©etration of sealant. Extracted permanent molars were used to compare penetration success rate of control group (sealant application only) and experimental groups (sealant application after ap¡©plying the primers of ScotchbondTM Multi-Purpose system and All-Bond 2 system).
The following results were obtained
1. The experimental groups using the primers showed increased sealant penetration success rate to the base of fissure when compared to control group but there was no statistically significant differences (p)0.05),
2. The depth, width and `depth/width value of fissure had statistically significant effect on sealant penetration success rate(p(0.05).
3. The penetration success rate decreased about 0.9 times as the depth of fissure increased every
25r m. and increased about 1.1 times as the width of the fissure_ orifice increased every 25Pm, and decreased about 0.6 times as the `depth/width¢¥ value increased every 1.
From the above results, it can be concluded that fissure morphology had a great effect on sealant penetration and for better penetration, use of dentine bonding primer can be helpful but it needs more study in clinical bases.

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