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°í¼º´É Æú¸®¸Ó ÀçÁúÀÇ Æ÷½ºÆ®-ÄÚ¾î ½Ã½ºÅÛÀÇ »ý¿ªÇÐÀû °Åµ¿¿¡ ´ëÇÑ ¿¹ºñ½ÇÇè

A Preliminary study of Biomechanical Behavior of High-Performance Polymer Post-Core System

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À̱⼱, ±èÁ¾Àº, ±èÁöȯ, ÀÌÁ¤¿­, ±è»ó¿Ï,
¼Ò¼Ó »ó¼¼Á¤º¸
À̱⼱ ( Lee Ki-Sun ) - °í·Á´ëÇб³ ¾È»êº´¿ø Ä¡°úº¸Ã¶°ú
±èÁ¾Àº ( Kim Jong-Eun ) - ¿¬¼¼´ëÇб³ Ä¡°úº´¿ø º¸Ã¶°ú
±èÁöȯ ( Kim Jee-Hwan ) - ¿¬¼¼´ëÇб³ Ä¡°úº´¿ø º¸Ã¶°ú
ÀÌÁ¤¿­ ( Lee Jeong-Yol ) - °í·Á´ëÇб³ ±¸·Îº´¿ø Ä¡°úº¸Ã¶°ú
±è»ó¿Ï ( Kim Sang-Wan ) - °í·Á´ëÇб³ÀÇ·á¿ø

Abstract

º» ¿¬±¸ÀÇ ¸ñÀûÀº ±âÁ¸ÀÇ ´Ù¸¥ Æ÷½ºÆ®-ÄÚ¾î Àç·á¿ÍÀÇ À¯ÇÑ¿ä¼ÒºÐ¼®(FEA)ÀÇ ºñ±³¸¦ ÅëÇÑ Ä¡°ú¿ë Æ÷½ºÆ®-ÄÚ¾î Àç·á·Î¼­ÀÇ °í¼º´É Æú¸®¸Ó PEKKÀÇ »ýü¿ªÇÐ ¹× Àå±â ¾ÈÀü¼ºÀ» Æò°¡ÇÏ´Â µ¥ ÀÖ´Ù. »ó¾Ç ÁßÀýÄ¡¸¦ ¸ðµ¨¸µ ÇÏ¿´À¸¸ç, ±¸°³ Ç¥¸é¿¡¼­ Ä¡¾ÆÀÇ ÀåÃà¿¡ $45^{\circ}$ ¼ö½Ä À̹ÌÁöÀÇ °¢µµ·Î 50NÀÇ ¹Ýº¹ ÇÏÁßÀ» °¡Çß´Ù. ÀüÅëÀûÀ¸·Î »ç¿ë µÈ Æ÷½ºÆ® ÄÚ¾î Àç·á¿Í ºñ±³Çϱâ À§ÇØ 3°¡Áö Àç·á (±Ý, À¯¸® ¼¶À¯ ¹× PEKK)¸¦ ½Ã¹Ä·¹À̼ÇÇÏ¿© °á°ú¸¦ »óÈ£ ºñ±³ ÇØ º¸¾Ò´Ù. »ó¾ÆÁúº¸´Ù ³·Àº ź¼º °è¼ö¸¦ °®´Â PEKK´Â Á¾·¡ÀÇ Æ÷½ºÆ® ÄÚ¾î Àç·áº¸´Ù ºñ±³Àû Ä¡±Ù¿¡ À¯¸®ÇÑ ÀÀ·Â ºÐÆ÷¸¦ º¸¿© ÁÖ¾ú´Ù. ±×·¯³ª, PEKK Æ÷½ºÆ®-ÄÚ¾î ½Ã½ºÅÛÀº ±Ý¼Ó ¶Ç´Â À¯¸® ¼¶À¯ Æ÷½ºÆ®-ÄÚ¾î ½Ã½ºÅÛº¸´Ù Àå±â°£ÀÇ ¹Ýº¹ÇÏÁß¿¡ ´ëÇØ Å¸¶ô ¹× Å©¶ó¿î ÆļÕÀÇ °¡´É¼ºÀÌ ´õ ³ôÀ» °¡´É¼ºÀÌ ÀÖ´Ù.

The aim of this study was to evaluate the biomechanical behavior and long-term safety of high performance polymer PEKK as an intraradicular dental post-core material through comparative finite element analysis (FEA) with other conventional post-core materials. A 3D FEA model of a maxillary central incisor was constructed. A cyclic loading force of 50 N was applied at an angle of 45¢ª to the longitudinal axis of the tooth at the palatal surface of the crown. For comparison with traditionally used post-core materials, three materials (gold, fiberglass, and PEKK) were simulated to determine their post-core properties. PEKK, with a lower elastic modulus than root dentin, showed comparably high failure resistance and a more favorable stress distribution than conventional post-core material. However, the PEKK post-core system showed a higher probability of debonding and crown failure under long-term cyclic loading than the metal or fiberglass post-core systems.

Å°¿öµå

°í¼º´É Æú¸®¸Ó ; Æ÷½ºÆ®-ÄÚ¾î Àç·á ; À¯ÇÑ¿ä¼ÒºÐ¼®
high performance polymer ; post-core material ; Finite Element Analysis

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