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The Efficiency of the Ni-Ti Rotary Files in Curved Simulated Canals Shaped by Novice Operators

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Park SH Cho KM/Kim JW

Abstract

¿©·¯ °¡Áö ÀåÁ¡À¸·Î ÀÎÇØ Ni-Ti Àüµ¿ ÆÄÀÏÀ» ±Ù°ü¼ºÇü¿¡ »ç¿ëÇÏ´Â ºóµµ°¡ Á¡Â÷ Áõ°¡µÇ´Â Ãß¼¼ÀÌÁö¸¸, ÃʽÉÀÚ¸¦ ´ë»óÀ¸·Î ÇÑ ¿¬±¸´Â ºÎÁ·ÇÑ ½ÇÁ¤ÀÌ´Ù. ÀÌ¿¡ º» ¿¬±¸¿¡¼­´Â ÃʽÉÀÚ¿¡¼­ Ni-Ti Àüµ¿ ÆÄÀÏÀ» »ç¿ëÇÒ ¶§ ±Ù°ü Çü¼ºÀÇ È¿¿ë¼ºÀ» Æò°¡ÇÏ°í, ¾î¶² ¹æ¹ýÀÌ ÃʽÉÀÚ¿¡°Ô ÀûÀýÇÑÁö¸¦ ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù. ±Ù°üÇüÅ°¡ ÀçÇöµÈ ·¹Áø ºí·ÏÀ» ÀÌ¿ëÇÏ¿© 12¸íÀÇ ÃʽÉÀÚ¿Í 4¸íÀÇ ¼÷·ÃÀÚ°¡ ±Ù°ü Çü¼ºÀ» ½ÃÇàÇÏ¿´´Ù. °¢ ¼úÀÚ´Â ProFile, ProTaper, Hybrid (ProFile£«ProTaper)¸¦ ÀÌ¿ëÇÏ¿© °¢°¢ÀÇ ·¹Áø ºí·ÏÀ» ¼¼ °³¾¿ ±Ù°üÇü¼ºÇÏ°í, °¢ ÆÄÀÏ º°ÀÇ ±Ù°ü Çü¼º ½Ã°£À» ±â·ÏÇÏ¿´´Ù. ±Ù°ü Çü¼º Àü°ú ÈÄÀÇ digital À̹ÌÁö¸¦ ÁßøÇÏ¿© Ä¡±Ù´ÜÀ¸·ÎºÎÅÍ 1, 2, 3, 4, 5, 6, 7mm level¿¡¼­ ±Ù°ü´Ü¸éÀÇ ÃѱæÀÌ º¯È­·®, ¸¸°î ¿ÜÃøÀÇ ±æÀÌ º¯È­·®, ¸¸°î ³»ÃøÀÇ ±æÀÌ º¯È­·®, Áß½ÉÀ̵¿·®, Áß½ÉÀ̵¿À²°ú Ä¡±Ù´Ü¿¡¼­ÀÇ apical transportationÀ» ±¸ÇÏ°í, ÃʽÉÀÚ¿Í ¼÷·ÃÀÚ »çÀÌÀÇ Â÷À̸¦ ºñ±³ Æò°¡ÇÏ¿´´Ù. ½ÇÇè°á°ú ProFile±ºÀÇ 1, 3, 5, 6, 7mm level°ú ProTaper±ºÀÇ 6mm level, Hybrid±ºÀÇ 3mm level¿¡¼­ ÃʽÉÀÚÀÇ ±Ù°ü´Ü¸éÀÇ ÃѱæÀÌ º¯È­·®ÀÌ ¼÷·ÃÀÚº¸´Ù ¸¹¾Ò´Ù. ¸ðµç ±º¿¡¼­ Ä¡±Ù´ÜÀ¸·ÎºÎÅÍ 4, 5, 6, 7mm level¿¡¼­´Â ±Ù°ü Áß½ÉÀÌ ¸¸°î³»ÃøÀ¸·Î À̵¿ÇÏ¿´°í, 1 2, 3mm level ¿¡¼­´Â ¸¸°î¿ÜÃøÀ¸·Î À̵¿ÇÏ¿´À¸³ª, ¼÷·ÃÀÚ°¡ ½ÃÇàÇÑ Hybrid±ºÀÇ 3mm level°ú ºñ¼÷·ÃÀÚ°¡ ½ÃÇàÇÑ ProTaper ±ºÀÇ 3mm level¿¡¼­´Â ¸¸°î³»ÃøÀ¸·Î À̵¿ÇÏ¿´´Ù. ¸ðµç ±ºÀÇ 3mm level°ú ProFile ±ºÀÇ 5mm level¿¡¼­ ÃʽÉÀÚÀÇ Áß½ÉÀ̵¿À²ÀÌ ¼÷·ÃÀÚ¿¡ ºñÇØ ÄÇÀ¸¸ç, ÃʽÉÀÚ°¡ ProTaper¸¦ »ç¿ë½Ã ´õ Å« apical trans portationÀ» º¸¿´°í, ¸ðµç ±º¿¡¼­ ÃʽÉÀÚ°¡ ±Ù°üÇü¼º½Ã ´õ ¸¹Àº ½Ã°£ÀÌ °É·È´Ù. ProFile°ú ProTaper¸¦ ÀÌ¿ëÇÑ Hybrid techniqueÀÌ ÃʽÉÀÚ¿¡°Ô ÃßõµÇ¸ç, ÃʽÉÀڵ鵵 ÃæºÐÈ÷ ±³À°¹Þ´Â´Ù¸é ¸¸°îµÈ ±Ù°üÀÇ ±Ù°üÇü¼º¿¡ À־ Ni-Ti rotary fileÀÇ ÀÌ¿ëÀÌ °¡´ÉÇϸ®¶ó°í »ç·áµÈ´Ù.

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