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The effects of deproteinization and primer treatment on microtensile bond strength of self-adhesive resin cement to dentin

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Abstract

º» ¿¬±¸ÀÇ ¸ñÀûÀº Å»´Ü¹é(deproteinization)À̳ª Ãß°¡ÀûÀÎ ÇÁ¶óÀ̸ÓÀÇ Ã³¸®°¡ »ó¾ÆÁú°ú ÀÚ°¡Á¢ÂøÇü ·¹Áø ½Ã¸àÆ® »çÀÌÀÇ ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Æò°¡Çϱâ À§ÇÔÀÌ´Ù. ÃÑ 40°³ÀÇ »ç¶÷ Á¦ 3 ´ë±¸Ä¡¸¦ ¼±º°ÇÏ¿© ¾ÆÅ©¸± ·¹Áø¿¡ ¸Å¸ôÇÑ ÈÄ ±³ÇÕ¸éÀÇ »ó¾ÆÁúÀ» ³ëÃâ½ÃÄ×´Ù.
Ç¥¸éÀ» 600¹ø ½Ç¸®ÄÜ Ä«¹ÙÀÌµå ¿¬¸¶Áö·Î ¿¬¸¶ÇÏ¿© µµ¸»ÃþÀ» Çü¼ºÇÑ ÈÄ ³ëÃâµÈ »ó¾ÆÁú¿¡ ´ÙÀ½°ú °°ÀÌ Ã³¸®ÇÏ¿´´Ù: ¾Æ¹«·± ó¸®ÇÏÁö¾ÊÀº ´ëÁ¶±º; Å»´Ü¹éÁ¦(5% Â÷¾Æ¿°¼Ò»ê³ªÆ®·ý) ó¸®; ÇÁ¶óÀ̸Ó(G-CEM ONE Adhesive enhancing primer, GC) µµÆ÷; Å»´Ü¹éÁ¦ ó¸®ÈÄ ÇÁ¶óÀÌ¸Ó µµÆ÷. º¹ÇÕ·¹Áø(Filtek Z250, 3M ESPE)À» Áö¸§ 10 mm, ³ôÀÌ 4 mmÀÇ ¿øÅëÇü Çöó½ºÆ½ ÁÖÇü¿¡ 2 mm¾¿ ÀûÃþ ÃæÀü¹× ±¤ÁßÇÕÇÑ ÈÄ Ç¥¸é ó¸®µÈ »ó¾ÆÁú¿¡ ÀÚ°¡Á¢ÂøÇü ·¹Áø ½Ã¸àÆ®(G-CEM ONE, GC)¸¦ Àû¿ëÇÏ°í ±¤ÁßÇÕÇÏ¿© Á¢Âø½ÃŲ´Ù. ±× ÈÄ 37¡ÉÁõ·ù¼ö¿¡ 24½Ã°£ º¸°üÇÏ°í ´Ü¸éÀÌ 1 mm2ÀÎ ¸·´ë±â ÇüÅ·ΠÀý´ÜÇÏ¿© ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ¸¦ ÃøÁ¤ÇÏ¿´´Ù. °¢ °á°ú°ªÀº one-way analysisof variance¿Í Tukey¡¯s honestly significant difference test·Î ºÐ¼®ÇÏ¿´´Ù. ½ÇÇè °á°ú »ó¾ÆÁú¿¡ Ç¥¸é 󸮸¦ ÇÑ ±×·ìÀÌ ´ëÁ¶±º¿¡ ºñÇØÀ¯ÀÇÇÏ°Ô ³ôÀº ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ¸¦ º¸¿´´Ù(p<0.05). »ó¾ÆÁú¿¡ ÇÁ¶óÀ̸Ӹ¦ ´Üµ¶ ó¸®ÇÑ ±×·ì¿¡¼­ °¡Àå ³ôÀº ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ°¡ °üÂûµÇ¾ú´Ù(p<0.05). Å»´Ü¹éÁ¦ 󸮳ª Å»´Ü¹éÁ¦ ó¸® ÈÄ ÇÁ¶óÀ̸Ӹ¦ ó¸®ÇÑ ±×·ìÀº ±× ´ÙÀ½À¸·Î À¯ÀÇÇÏ°Ô ³ôÀº ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ¸¦ ³ªÅ¸³ÂÀ¸¸ç(p<0.05) µÎ ±×·ì »çÀÌ¿¡ À¯ÀÇÇÑ Â÷ÀÌ´Â °üÂûµÇÁö ¾Ê¾Ò´Ù(p>0.05). °á·ÐÀûÀ¸·Î, º» ¿¬±¸¿¡ »ç¿ëÇÑ ÀÚ°¡Á¢ÂøÇü ·¹Áø ½Ã¸àÆ®´Â »ó¾ÆÁú¿¡Å»´Ü¹éÁ¦³ª ƯÁ¤ ÇÁ¶óÀ̸Ӹ¦ ÇÔ²² »ç¿ëÇÏ´Â °æ¿ì Á¢Âø·ÂÀÌ Çâ»óµÉ ¼ö ÀÖÀ¸³ª µÎ Á¦Á¦¸¦ º´¿ëÇÏ´Â °ÍÀº ÃßõµÇÁö ¾Ê´Â´Ù.

The purpose of this study was to evaluate the effects of deproteinization and an additional primer treatment on the microtensilebond strength of a newly developed self-adhesive resin cement to dentin. The occlusal dentin of extracted human third molarswas randomly divided into four groups according to the surface treatment: a control (CON) with no treatment; applying adeproteinizing agent (DPT) (5% sodium hypochlorite); using a primer (PRI) (G-CEM ONE Adhesive enhancing primer, GC);and applying a deproteinizing agent and a primer (DPT-PRI). Composite resin blocks with a disk shape (diameter, 10 mm;height, 4 mm) were bonded to the treated dentin using a self-adhesive resin cement (G-CEM ONE, GC). The specimenswere sectioned into sticks with a cross-section of 1 mm2 and tested to failure in tension mode at a crosshead speed of 1mm/min. All groups showed a significantly higher microtensile bond strength compared to CON (p<0.05). PRI showed thehighest microtensile bond strength followed by DPT and DPT-PRI (p<0.05). No significant differences were observed betweenDPT and DPT-PRI (p>0.05). Within the limitations of this study, a deproteinizing agent or specific primer can enhance themicrotensile bond strength of the self-adhesive resin cement to dentin. However, it is not recommended to use a primerin combination with the deproteinizing agents.

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ÀÚ°¡Á¢ÂøÇü ·¹Áø ½Ã¸àÆ®; ¹Ì¼¼ÀÎÀå°áÇÕ°­µµ; Å»´Ü¹é; Â÷¾Æ¿°¼Ò»ê³ªÆ®·ý
Self-adhesive resin cements; Microtensile bond strength; Deproteinization; Sodium hypochlorite

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