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Comparison of Push-out Bond Strengths According to Relining Procedure and Cement Type on Fiber Post

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°­Çö¿µ ( Kang Hyun-Young ) - ÀüºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç
Á¶¼Ò¿¬ ( Cho So-Yeun ) - ÀüºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç
À¯¹Ì°æ ( Yu Mi-Kyung ) - ÀüºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç
À̱¤¿ø ( Lee Kwang-Won ) - ÀüºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç
±è°æ¾Æ ( Kim Kyoung-A ) - ÀüºÏ´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úº¸Á¸Çб³½Ç

Abstract

±Ù°üÄ¡·áµÈ Ä¡¾ÆÀÇ ¼öº¹¿¡¼­ fiber post Å©±â¿Í Æ÷½ºÆ® °ø°£ÀÇ Á÷°æÀÌ ÀÏÄ¡ÇÏÁö ¾ÊÀº °æ¿ì, Æ÷½ºÆ® °ø°£Àº µÎ²¨¿î ·¹Áø ½Ã¸àÆ®·Î ä¿öÁö°Ô µÈ´Ù. ·¹Áø ½Ã¸àÆ®°¡ µÎ²¨¿öÁö¸é ½Ã¸àÆ® ³»¿¡ ±âÆ÷°¡ Çü¼ºµÇ¾î Æ÷½ºÆ® ºÐ¸®°¡ ¹ß»ýµÇ±â ½±´Ù. ÀÌ·± ¹®Á¦Á¡À» ÇØ°áÇϱâ À§ÇÑ ¹æ¹ýÀº composite resinÀ» ÀÌ¿ëÇÏ¿© fiber post¸¦ reliningÇÏ´Â °ÍÀÌ´Ù. ÀÌ·¸°Ô Çü¼ºµÈ ÇغÎÇÐÀû Æ÷½ºÆ®´Â Æ÷½ºÆ® °ø°£¿¡ Àß ÀûÇÕÇÏ°í ½Ã¸àÆ®ÀÇ µÎ²²¸¦ °¨¼Ò½ÃŲ´Ù. ÀÌ ¿¬±¸ÀÇ ¸ñÀûÀº relining °úÁ¤°ú ÀÓ»ó °úÁ¤ÀÇ °£¼ÒÈ­¸¦ À§ÇØ »ç¿ëµÇ°í ÀÖ´Â luting agents Á¾·ù¿¡ µû¸¥ fiber postÀÇ push-out °áÇÕ °­µµ¸¦ Æò°¡ÇÏ´Â °ÍÀÌ´Ù. 42°³ÀÇ ¹ßÄ¡µÈ Ä¡¾Æ´Â 6°³ÀÇ ±×·ì(n=7)À¸·Î ³ª´©¾îÁ³´Ù. (A1: relined fiber post¸¦ Luxacore/all-bond 2·Î ÇÕÂø, A2: non-relined fiber post¸¦ Luxacore/all-bond 2·Î ÇÕÂø. B1: relined fiber post¸¦ Calibra/XP-bond·Î ÇÕÂø. B2: non-relined fiber post¸¦ Calibra/XP-bond·Î ÇÕÂø. C1: relined fiber post¸¦ RelyX UnicemÀ¸·Î ÇÕÂø. C2: non-relined fiber post¸¦ RelyX UnicemÀ¸·Î ÇÕÂø.) Push-out °áÇÕ °­µµ´Â relining procedure¿Í cement typeÀÇ »óÈ£ÀÛ¿ë¿¡ ÀÇÇØ ¿µÇâÀ» ¹Þ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. relined fiber post ±×·ìÀÌ non-relined fiber post ±×·ìº¸´Ù ´õ ³ôÀº °áÇÕ °­µµ¸¦ °¡Áö¸ç fiber post relining °úÁ¤Àº °áÇÕ°­µµ¿¡ À¯ÀÇÇÑ ¿µÇâÀ» °¡Áø´Ù.(p<0.05) Luting agent¿¡ µû¶ó ¸ðµç ±×·ì¿¡¼­ RelyX UnicemÀÇ °áÇÕ°­µµ°¡ Luxacore/All-bond 2¿Í Calibra/XP bond¿¡ ÀÇÇÑ °Íº¸´Ù À¯ÀÇÇÏ°Ô ´õ ³ô¾Ò´Ù(p<0.05).

When restoring endodontically treated teeth is the mismatch between fiber post size and post space diameter, the resin cement layer is excessively thick in post space and voids are likely to form in it, thus predisposing to de-bonding. The method to overcome this problem is to reline the fiber post with composite resin. This individual anatomic post improves the adaptation of post to root walls and decreases the resin cement thickness. The purpose of this in vivo study was to evaluate the push-out bond strength of fiber post according to relining procedure and luting agents type used for simplicity of clinical procedure. Forty-two extracted teeth were divides into six groups.(n=7) A1: relined fiber post cemented with Luxacore/all-bons 2, A2: non-relined fiber post cemented with Luxacore/all-bond2, B1: relinind fiber post cemented with Calibra/XP-bond, B2: non-relined fiber post cemented with Calibra/XP-bond, C1: relined fiber post cemented with RelyX Unicem, C2: non-relined fiber post cemented with RelyX Unicem Push-out bond strength was affected by interaction between relining procedure and luting agent type. Relined fiber post presented higher push-out bond strength value than non-relined fiber post and statically significant differences(p<0.05) Cementation with RelyX Unicem showed significantly higher bond strength than other luting agents(p<0.05).

Å°¿öµå

Relining °úÁ¤;Push-out °áÇÕ °­µµ
Fiber post;relining procedure;push-out bond strength;self-adhesive cement;core material

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