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MICROTENSILE BOND STRENGTH OF DENTIN BONDING ADHESIVES ON BOVINE TEETH

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Abstract

ÀüÅëÀûÀÎ 3´Ü°è total-etching ½Ã½ºÅÛÀÎ Á¦ 4¼¼´ë »ó¾ÆÁú Á¢ÂøÁ¦·ÎºÎÅÍ ¼ú½ÄÀÇ ´Ü¼øÈ­¸¦ ÀÌ·ç¸ç ÁøÈ­ÇÑ Á¦ 5, 6¼¼´ë ¹× ÃÖ±Ù¿¡ ¼Ò°³µÈ Á¦ 7¼¼´ë »ó¾ÆÁú Á¢ÂøÁ¦¸¦ »ó¾ÆÁú Ç¥¸é󸮹æ½Ä°ú Àû¿ë´Ü°èº°·Î ±¸ºÐÇÏ¿© bovine teeth »ó¾ÆÁú¿¡ ´ëÇÑ ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ¸¦ ÃøÁ¤ÇÏ¿© ±× È¿¿ë¼ºÀ» ºñ±³ Æò°¡ÇÏ¿´´Ù. Bovine incisorÀÇ »ó¾ÆÁú Ç¥¸éÀ» ³ëÃâ½ÃÅ°°í, ÀûÀýÇÑ Ç¥¸éó¸® ÈÄ Á¦Á¶»çÀÇ Áö½Ã¿¡ µû¶ó 5Á¾ÀÇ »ó¾ÆÁú Á¢ÂøÁ¦; Á¦ 4 ¼¼´ë·Î Scotch Multipurpose(3M ESPE, USA), Single Bond 2(3M ESPE, USA), Á¦ 5¼¼´ë SE Bond(KURARAY, JAPAN), Á¦ 6¼¼´ë AQ (SUN MEDICAL, JAPAN), Á¦ 7¼¼´ë tri-S Bond(KURARAY, JAPAN)¸¦ °¢°¢ Àû¿ëÇÏ¿© ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ¸¦ ÃøÁ¤ÇÏ°í Á¢Âø°è¸éÀÇ ÆÄÀý¾ç»óÀ» °üÂûÇÏ¿´´Ù. ¿¬±¸°á°ú ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ´Â SE Bond±º¿¡¼­ °¡Àå ³ô¾ÒÀ¸¸ç ´ÙÀ½À¸·Î Scotch Multipurpose±º, Single Bond 2±º, AQ ±º, tri-S Bond±ºÀÇ ¼øÀ¸·Î ³ªÅ¸³µ´Ù. °è¸éÀÇ ÆÄÀý¾ç»óÀº »ó´ëÀûÀ¸·Î ¹Ì¼¼ÀÎÀå°­µµ°¡ ³ô°Ô ³ªÅ¸³­ Scotch Multipurpose, Single Bond2, SE Bond±ºÀº ·¹ÁøÀÇ ÀÀÁý¼º ÆÄÀýÀÌ ¸¹ÀÌ ¹ß»ýÇÏ¿´°í »ó´ëÀûÀ¸·Î ¹Ì¼¼ÀÎÀå°­µµ°¡ ³·Àº AQ , tri-S Bond ±ºÀÇ °æ¿ì¿¡´Â ´ëºÎºÐ Á¢Âø¼º ÆÄÀýÀÌ °üÂûµÇ¾ú´Ù. ÀÌ»óÀÇ °á°ú¸¦ Á¾ÇÕÇÏ¸é »ó¾ÆÁú Á¢ÂøÁ¦ÀÇ ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ´Â °¢ Á¢Âø½Ã½ºÅÛº°·Î ´Ù¼ÒÀÇ Â÷À̸¦ º¸À̸ç, ƯÈ÷ Á¦ 6, 7¼¼´ë »ó¾ÆÁú Á¢ÂøÁ¦°¡ ÀÌÀü ¼¼´ëº¸´Ù ³·Àº °ÍÀ¸·Î ³ªÅ¸³µ´Ù.

The purpose of this study was to compare the micro ensile bond strength to bovine dentin of several adhesives (SM, Scotch Multipurpose; SB, Single Bond 2; SE, SE Bond; AQ, AQ ; TS, tri-S Bond). Except SM and SB, they have a simplified one- or two-step application protocols in compare with the dentin adhesives conventional three-step protocols. For the microtensile bond strength test, the labial surfaces of bovine incisors were used. Following exposure of dentin layer, according to their manufacturer¡¯s directions, each dentin adhesives were applied and composite resin blocks were constructed. The teeth were sectioned for specimen and tested microtensile bond strength. Also observed the fracture mode of interface. The obtained results were as follows : 1. The microtensile bond strength values ranged from 51.34 to 24.04 MPa on dentin(in decreasing order, SE, SM, SB, AQ and TS). 2. The highest microtensile bond strength was by SE and SM on bovine dentin, and the lowest by AQ and TS. 3. SM, SB and SE showed cohesive failures and adhesive failure but AQ, TS presented almost adhesive failures. In summary, microtensile bond strengths of single-step adhesives (AQ and TS) on bovine dentin were significantly lower than those of multi-step adhesives (SM, SB and SE) (p<0.05).

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¹Ì¼¼ÀÎÀå°áÇÕ°­µµ;Bovine teeth;»ó¾ÆÁú Á¢ÂøÁ¦
Microtensile strength;Dentin adhesive

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