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Effects of activators contained in adhesives on dentin bond strengths

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·ùÀçÁØ ( Ryu Jae-Jun ) - °í·Á´ëÇб³ ÀÓ»óÄ¡ÀÇÇдëÇпø

Abstract

¿¬±¸¸ñÀû: º» ¿¬±¸ÀÇ ¸ñÀûÀº ÀÚ°¡ÁßÇÕ ¶Ç´Â ÀÌÁßÁßÇÕÀ» À§ÇÑ È°¼ºÁ¦°¡ Æ÷ÇÔµÈ »ó¾ÆÁú Á¢ÂøÁ¦¿¡¼­ È°¼ºÁ¦ÀÇ »ç¿ë À¯¹«°¡ ÀÚ°¡ÁßÇÕ º¹ÇÕ·¹Áø°ú »ó¾ÆÁú Á¢ÂøÁ¦°£ÀÇ Àü´Ü°áÇÕ°­µµ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Æò°¡ÇÏ´Â °ÍÀÌ´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: ½ÇÇèÀ» À§ÇÏ¿© ¿ì½Ä ¹× ÃæÀü¹°ÀÌ ¾ø´Â °ÇÀüÇÑ ´ë±¸Ä¡ 50°³¸¦ ÁÖ¹®Á¦ÀÛÇÑ ¾ÆÅ©¸±¸¯ ·¹Áøºí·Ï¿¡ Æ÷¸ÅÇÑ ÈÄ, ¸ðµ¨ Æ®¸®¸Ó·Î ¿¬¸¶ÇÏ¿© ÆòÈ°ÇÑ »ó¾ÆÁú¸éÀ» ¸¸µç ÈÄ, 600grit ½Ç¸®ÄÜ Ä«¹ÙÀ̵å ÆäÀÌÆÛ·Î ¿¬¸¶ÇÏ°í Áõ·ù¼ö¿¡ º¸°üÇÏ¿´´Ù. 50°³ÀÇ ½ÃÆíÀ» 10°³¾¿ 5°³ ±ºÀ¸·Î ³ª´« ÈÄ, »ó¾ÆÁú Á¢ÂøÁ¦¸¦ Á¦Á¶»çÀÇ Áö½Ã´ë·Î µµÆ÷ÇÑ ÈÄ, Çöó½ºÆ½ ÁÖÇüÀ» ÀÌ¿ëÇÏ¿© ÀÚ°¡ÁßÇÕ º¹ÇÕ·¹Áø (Luxacore)À» Á¢Âø½ÃÄ×´Ù. »ó¾ÆÁú Á¢ÂøÁ¦´Â One-Step (OS±º), Prime&Bond NT, AdheSE¸¦ ÀÌ¿ëÇÏ¿´´Âµ¥ Prime&Bond NT¿Í AdheSE´Â ´Üµ¶À¸·Î »ç¿ëÇÑ ±º (PB±º, AS±º)°ú È°¼ºÁ¦¸¦ °°ÀÌ »ç¿ëÇÑ ±º (PBA±º, ASA±º) À¸·Î ´Ù½Ã ³ª´©¾ú´Ù. Áõ·ù¼ö¿¡ 24½Ã°£ º¸°ü ÈÄ, ÀνºÆ®·Ð ¸¸´É½ÃÇè±â¸¦ »ç¿ëÇÏ¿© ½ÃÆí¿¡ 1 mm/minÀÇ Àü´Ü¼Óµµ·Î ÇÏÁßÀ» °¡ÇÏ¿© ½ÃÆíÀÌ ºÐ¸®µÇ´Â ÃÖ´ëÇÏÁßÀ» ÃøÁ¤ÇÑ µÚ, ´ÜÀ§ ¸éÀû ´ç °áÇÕ°­µµ (MPa)·Î ȯ»êÇÏ¿© One-way ANOVA¸¦ ÀÌ¿ëÇÏ¿© ºñ±³, ºÐ¼®ÇÏ°í 5% À¯ÀǼöÁØ¿¡¼­ Tukey HSD °ËÁ¤À» ÀÌ¿ëÇÏ¿© ºÐ¼®ÇÏ¿´´Ù.

°á°ú: °¢ ±ºÀÇ Àü´Ü°áÇÕ°­µµÀÇ Æò±ÕÀ» º¸¸é, OS±ºÀÌ 18.6 MPa·Î °¡Àå ³ô¾Ò°í ±× ´ÙÀ½ÀÌ PBA±º (10.3 MPa)°ú ASA±º (10.2 MPa)À̾ú°í, PB±º°ú AS±ºÀÌ °¢°¢ 5.9 MPa, 6.0 MPa·Î °¡Àå ³·Àº Àü´Ü°áÇÕ°­µµ¸¦ ³ªÅ¸³»¾ú´Ù.

°á·Ð: º» ½ÇÇèÀ» ÅëÇØ Prime&Bond NT¿Í AdheSE¿¡¼­ È°¼ºÁ¦¸¦ °°ÀÌ »ç¿ëÇÑ °æ¿ì, È°¼ºÁ¦¸¦ »ç¿ëÇÏÁö ¾ÊÀº °æ¿ìº¸´Ù Àü´Ü°áÇÕ°­µµ°¡ ³ô¾ÆÁüÀ» ¾Ë ¼ö ÀÖ¾úÁö¸¸, È°¼ºÁ¦°¡ Æ÷ÇԵǾî ÀÖÁö ¾ÊÀº One-Stepº¸´Ù´Â ³·Àº ¼öÄ¡¿´´Ù.

Statement of problem: An incompatibility between the initiator systems of self-curing composite resins and light-curing adhesives was supposed re-cently.

Purpose: The purpose of the study was to evaluate the influence of activators for self/dual bonding on dentin shear bonding strengths.Material and methods: Fifty human molars were divided into 5 groups. A flat dentin surface was created for each tooth. A self-curing compositeresin (Luxacore) was bonded with the following adhesives (n = 10); One-Step, Prime&Bond NT, AdheSE, Prime&Bond NT and AdheSE were alsoused in combination with activators. Shear bond strengths were measured after 24 hours of water storage. The specimens were loaded in shear in theInstron until failure at a 1 mm/min crosshead speed. Data were compared using one-way ANOVA and Tukey HSD test (¥á= 0.05).

Results: Thedentin adhesive systems in order of decreasing median bond strength were One-Step > Prime&Bond NT with activator, AdheSE with activator >Prime&Bond NT, AdheSE. Among adhesives, One-Step had the highest bond strength. Prime&Bond NT with activator had higher bond strengthsthan Prime&Bond NT that was used alone, and so was AdheSE.

Conclusion: Shear bond strengths were increased in Prime&Bond NT and AdheSEwhen these were used with activators comparing used without activators. But using activators was not effective clinically comparing One-Step.

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Activator;Self-cure composite resin;Adhesive;Chemical incompatibility

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