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COMPARISON OF BOND STRENGTH OF A FIBER POST CEMENTED WITH VARIOUS RESIN CEMENTS

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ÀÌÇö¾Æ ( Lee Hyun-A ) - Á¶¼±´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
Á¶¿µ°ï ( Cho Young-Gon ) - Á¶¼±´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç

Abstract

ÀÌ ¿¬±¸´Â ´Ù¾çÇÑ Á¢Âø½Ã½ºÅÛÀ» »ç¿ëÇÏ´Â 6°¡Áö ·¹Áø½Ã¸àÆ®¸¦ ÀÌ¿ëÇÏ¿© ±Ù°ü¿¡ ÇÕÂøÇÑ ¼¶À¯Æ÷½ºÆ®¸¦ push-out °Ë»ç¿¡ ÀÇÇØ Æ÷½ºÆ®¿Í Ä¡±Ù »ó¾ÆÁú °£ÀÇ °áÇÕ°­µµ¸¦ »óÈ£ ºñ±³Çϱâ À§ÇÏ¿© ½ÃÇàµÇ¾ú´Ù. ¹ß°ÅµÈ ÇÏ¾Ç ¼Ò±¸Ä¡ÀÇ Ä¡°üºÎ¸¦ Á¦°ÅÇÏ°í Ä¡±ÙºÎ¸¦ ±Ù°üÃæÀüÇÑ ÈÄ 9mmÀÇ Æ÷½ºÆ® ·ëÀ» Çü¼ºÇÏ¿´´Ù. »ç¿ëµÈ ·¹Áø½Ã¸àÆ®ÀÇ Á¾·ù¿¡ µû¶ó¼­ ¹«ÀÛÀ§·Î 6°³¾¿ ¼±ÅÃÇÏ¿© Duo-Link ±º, Variolink II ±º, Panavia F ±º, Multilink Automix ±º, RelyX Unicem ±º, Maxcem ±ºÀ¸·Î ºÐ·ùÇÏ¿´´Ù. Á¦Á¶»çÀÇ Áö½Ã¿¡ µû¶ó¼­ °¢°¢ÀÇ ·¹Áø½Ã¸àÆ®¸¦ Uni-dose needle tipÀ» ÀÌ¿ëÇÏ¿© ±Ù´ÜºÎ¿¡¼­ºÎÅÍ ÁÖÀÔÇÏ¿© ±¤Åõ°ú¼º ¼¶À¯ Æ÷½ºÆ®ÀÎ no. 2 DT Light Post¸¦ ±Ù°ü¿¡ ÇÕÂøÇÏ¿´´Ù. Áõ·ù¼ö¿¡ 24½Ã°£µ¿¾È º¸°üÇÑ ÈÄ, ÁÖ¼ö ÇÏ¿¡ Àú¼ÓÀÇ Diamond Wheel Saw¸¦ ÀÌ¿ëÇÏ¿© °¢ Ä¡±ÙÀ» Ⱦ´Ü¸éÀ¸·Î 1mm µÎ²²·Î Àý´ÜÇÏ¿© ¿¬¼ÓÀûÀÎ ÀýÆí 6°³¸¦ ¾ò¾ú´Ù. °¢ ±ºÀÇ ½ÃÆíÀ» universal testing machine¿¡ °íÁ¤ÇÏ°í push-out °Ë»ç¸¦ ½ÃÇàÇÏ¿© push-out °­µµ¸¦ Åë°è ºÐ¼®ÇÑ °á°ú, ¼­·Î ´Ù¸¥ Á¢Âø½Ã½ºÅÛÀ» »ç¿ëÇÑ ·¹Áø½Ã¸àÆ® ±º°£ÀÇ push-out °­µµ´Â À¯ÀÇÇÑ Â÷ÀÌ°¡ ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù (p > 0.05).

The purpose of this study was to compare the push-out strength of a fiber post cemented with various resin cements. Newly extracted 36 human mandibular premolars which had single root canal were selected and their crown portions were removed. The root canal was instrumented using system and obturated using continuous wave technique. In each root, a 9-mm deep post space was prepared. #2 translucent fiber post (DT Light post, Bisco Inc., Schaumburg, IL, U.S.A.) was cemented using injection technique with Uni-dose needle tip (Bisco) and six different resin cements. The tested resin cements were Duo-Link (Bisco Inc., Schaumburg, IL, U.S.A.), Variolink II (Ivoclar-Vivadent AG, Schann, Liechtenstein), Panavia F (Kuraray Medical Inc., Okayama, Japan), Multilink Automix (Ivoclar-Vivadent AG, Schann, Liechtenstein), RelyX Unicem (3M ESPE Dental Products, St. Paul, MN, U.S.A.), and Maxcem (Kerr Co., CA, U.S.A.). After storage in distilled water for 24 hours, each root was transversally sectioned into approximately 1-mm thick sections. This procedure resulted in 6 serial sections per root. Push-out test wasperformed using a universal testing machine (EZ Test, Shimadzu Co.) with a crosshead speed of 1 mm/min. The data were analyzed with one-way ANOVA and Tukey HSD (p=0.05). The push-out strength of the groups which cemented fiber post with Panavia F and Multilink Automix were lower than those of the other groups. But, there were no statistically significant difference among groups at a probability level of 0.05.

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Fiber post;Resin cement;Root dentin;Push-out test;Injection technique

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