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THE EFFECTS OF COLLAGENASE AND ESTERASE ON THE MICROTENSILE BOND STRENGTH IN DENTIN BONDING

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Abstract

»ó¾ÆÁú-·¹Áø Á¢Âø°­µµ¿¡ ´ëÇÑ collagenase¿Í esteraseÀÇ ¿µÇâÀ» »ìÆ캸±â À§ÇØ, ¼Ò±¸Ä¡ÀÇ ±³ÇÕ¸é »ó¾ÆÁú¿¡ Single Bond 2¿Í Clearfil SE Bond·Î Á¢ÂøÀ» ½ÃÇàÇÏ°í ¹Ì¼¼ ½ÃÆíÀ» Á¦ÀÛÇÏ¿© PBS collagenase ¿ë¾×, esterase ¿ë¾×¿¡ 4ÁÖ°£ º¸°üÇÑ ÈÄ ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ¸¦ ÃøÁ¤, ºñ±³ÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. ¸ðµç º¸°ü ¿ë¾×¿¡¼­ Single Bond 2ÀÇ ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ´Â Clearfil SE Bondº¸´Ù À¯ÀÇÇÏ°Ô ³·¾Ò´Ù(p<0.05).
2. Single Bond 2ÀÇ ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ´Â collagenase±ºÀÌ PBS±º, esterase±ºº¸´Ù ³·¾Ò´Ù(p>0.05).
3. Clearfil SE BondÀÇ ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ´Â esterase±ºÀÌ PBS±º¿¡ ºñÇØ ³·¾ÒÀ¸³ª(p>0.05), collagenase±ºº¸´Ù´Â ³ô¾Ò´Ù(p>0.05). Collagenase±ºÀº PBS±º¿¡ ºñÇØ À¯ÀÇÇÏ°Ô ³·Àº ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ¸¦ º¸¿´´Ù(p<0.05).

The purpose of this study was to evaluate the effect of collagenase and esterase on the microtensile bond strength({mu}TBS) in dentin bonding. After resin composites were bonded to occlusal dentin. {mu}TBS specimens were formed and stored in PBS, collagenase, or esterase solution After 4-week storage, {mu}TBS was determined and, the results were as follows :
1. {mu}TBS values of Single Bond 2 were lower than those of Clearfil SE Bond for all storage medium (p<0.05).
2. In Single Bond 2 group, collagenase solution lowered bond strength more than PBS and esterase solution (p>0.05).
3. In Clearfil SE Bond group, esterase solution lowered bond strength more than PBS(p>0.05). Collagenase solution lowered bond strength more than esterase solution(p>0.05) and PBS(p<0.05).

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Dentin bond;Collagenase;Esterase;Microtensile bond strength

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