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Comparison of shearbond strength between metal and indirect resin according to the different conditionings

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ÃÖ¼ö¿µ ( Choi Su-Young ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ º¸Ã¶Çб³½Ç
ÃÖÇö¹Î ( Choi Hyun-Min ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ º¸Ã¶Çб³½Ç
¹®È«¼® ( Moon Hong-Seok ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ º¸Ã¶Çб³½Ç
½ÉÁؼº ( Shim June-Sung ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ º¸Ã¶Çб³½Ç
¹Ú¿µ¹ü ( Park Young-Bum ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ º¸Ã¶Çб³½Ç
À̱ٿì ( Lee Keun-Woo ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ º¸Ã¶Çб³½Ç

Abstract

¸ñÀû: º» ¿¬±¸¿¡¼­´Â 4Á¾ÀÇ °£Á¢º¹ÇÕ·¹Áø¿¡ ´ëÇÏ¿© ±ÝÇձݰú Ni-CrÇձݿ¡ ´ëÇÑ °áÇÕ°­µµÀÇ Â÷ÀÌ¿Í °¢°¢ÀÇ Çձݿ¡ Ç¥¸éÇüŸ¦ ´Ù¸£°Ô ÇÏ¿© ÀÏÁ¤ÇÑ ¿ÂµµÀÇ Áõ·ù¼ö¿¡ º¸°ü Àü°ú ÈÄ¿¡ Àü´Ü°áÇÕ°­µµÀÇ Â÷ÀÌ°¡ ÀÖ´ÂÁö ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.

Àç·á ¹× ¹æ¹ý: ±Ý¼Ó ½ÃÆíÀ» ÁÖÁ¶ Á¦ÀÛÇÏ¿´´Âµ¥, ±ÝÇձݰú Ni-CrÇÕ±ÝÀÇ Ç¥¸éÇüŸ¦ flatting, bead, loop·Î ÇÏ¿© 4Á¾ÀÇ °£Á¢º¹ÇÕ·¹Áø(Gradia, Tescera Sinfony and in;joy)´ç 60°³¾¿ ÃÑ 240°³¸¦ ÁغñÇÏ¿´´Ù. ÀÌÈÄ ±Ý¼ÓÇ¥¸é¿¡ °¢°¢ÀÇ Á¦Á¶»ç¿¡¼­ Áö½ÃÇÑ´ë·Î °£Á¢ º¹ÇÕ·¹ÁøÀ» Á¢ÂøÇÏ¿´´Ù. °£Á¢º¹ÇÕ·¹ÁøÀÇ ÁßÇÕ 24½Ã°£ ÈÄ¿¡ ¸¸´É½ÃÇè±â¸¦ ÀÌ¿ëÇÏ¿© Àü¿ë Áö±×¿¡ ±Ý¼Ó½ÃÆíÀ» ºÎÂø ÈÄ, Àü´Ü°áÇÕ°­µµ¸¦ ÃøÁ¤ÇÏ¿´´Ù. ¶ÇÇÑ Áõ·ù¼ö¿¡ 240½Ã°£ º¸°ü ÈÄ¿¡ °°Àº ¹æ¹ýÀ¸·Î Àü´Ü°áÇÕ°­µµ¸¦ ÃøÁ¤ÇÏ¿´´Ù.

°á°ú: ±Ý¼ÓÀÇ Ç¥¸é ÇüÅ¿¡ µû¸¥ Àü´Ü°áÇÕ°­µµ ÃøÁ¤¿¡¼­ 4Á¾ÀÇ ·¹Áø ¸ðµÎ bead±º¿¡¼­ ³ôÀº °áÇÕ°­µµ¸¦ º¸¿´°í loop, flatting ¼øÀ̾ú´Ù (P < .05). ¼öÁ¶¿¡¼­ 240½Ã°£ º¸°ü ÈÄ¿¡´Â Gradia°¡ ¸ðµç ±º¿¡¼­ ´Ù¸¥ ·¹Áø ±º¿¡ ºñÇØ ºñ½ÁÇϰųª, Åë°èÀûÀ¸·Î À¯ÀÇÇÏ°Ô ³ôÀº (P < .05) Àü´Ü°áÇÕ°­µµ¸¦ ³ªÅ¸³»¾ú´Ù.

°á·Ð: ±Ý¼ÓÇ¥¸éÀÇ ÇüÅ¿¡ µû¶ó, ±Ý¼ÓÀÇ Á¾·ù¿¡ µû¶ó, ¹°¼Ó º¸°ü ÀüÈÄ¿¡ µû¶ó ±Ý¼Ó°ú °£Á¢º¹ÇÕ·¹ÁøÀÇ °áÇÕ·ÂÀÇ Â÷À̸¦ ³ªÅ¸³»¾ú°í Ãß°¡ ½ÇÇèÀ» ÅëÇØ ÃÖÀûÀÇ Á¶ÇÕ¿¡ µû¸¥ ÀÓ»ó¿¡¼­ÀÇ Àû¿ë°¡´É¼ºÀ» º¸¿©ÁÖ¾ú´Ù.

PURPOSE. The purpose of this study is to investigate the differences in bond strength of four different indirect composites to the gold alloy and Ni-Cr alloy according to type of metal surface treatment after water storage.

MATERIALS AND METHODS. Type IV gold alloy and Ni-Cr alloy were used for casting alloy while four types of indirect composite resins (Gradia, Tescera Sinfony and in;joy) were used in this study. Metal specimens were produced by casting and total of 240 specimens (60 specimens per one indirect composite group) were prepared. After bonding indirect composite resin and undergoing 24 hours of polymerization, customized jig was attached to the metal specimen and shear bond strength were measured using universal testing machine. Also, differences in shear bond strength before and after water storage for 240 hours were also measured.

RESULTS. In the measurement of shear bond strength according to the metal surface treatments, bead group showed high strength followed by loop and flatting group (P<.05). After being stored in water bath for 240 hours, Gradia showed statistically significant high bond strength compared to other indirect composite resins in all groups (P<.05).

CONCLUSION. Shearbond strength was found to be different according to type of metal surface treatment and type of metal used after storage in water. Further studies need to be developed for clinical practices as three are still problems of microleakage, stain or wear.

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Àü´Ü°áÇÕ°­µµ; °£Á¢º¹ÇÕ·¹Áø; ±Ý¼Ó; ±ÝÇÕ±Ý; Ni-CrÇÕ±Ý
Shear bond strength; Indirect composite resin; Metal; Gold alloy; Ni-Cr alloy

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