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A COMPARATIVE STUDY ON RADIOPACITY OF ROOT CANAL SEALERS

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±èŹΠ( Kim Tae-Min ) - Àü³²´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø
±è¼­°æ ( Kim Seo-kyong ) - Àü³²´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø º¸Á¸Çб³½Ç, Ä¡ÀÇÇבּ¸¼Ò
ȲÀÎÇö ( Hwang In-Hyun ) - Àü³²´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø º¸Á¸Çб³½Ç, Ä¡ÀÇÇבּ¸¼Ò
°­º´Ã¶ ( Kang Byung-Cheol ) - Àü³²´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ±¸°­¾Ç¾È¸é¹æ»ç¼±Çб³½Ç
À±¼÷ÀÚ ( Yoon Suk-Ja ) - Àü³²´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ±¸°­¾Ç¾È¸é¹æ»ç¼±Çб³½Ç
ÀÌÀç¼­ ( Lee Jae-Seo ) - Àü³²´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ±¸°­¾Ç¾È¸é¹æ»ç¼±Çб³½Ç
¿À¿ø¸¸ ( Oh Won-Mann ) - Àü³²´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø º¸Á¸Çб³½Ç

Abstract

´Ù¾çÇÑ ±Ù°üÀü»öÁ¦´Â ¹æ»ç¼± »çÁø»ó ÁÖÀ§ ÇغÎÇÐÀû ±¸Á¶¿Í ±¸º°µÉ ¸¸ÇÑ ¹æ»ç¼± ºÒÅõ°ú¼ºÀ» ³ªÅ¸³»¾ß ÇÑ´Ù. µû¶ó¼­ ÀÌ·± ¹°ÁúµéÀÌ ±Ù°ü¿¡ ÃæÀüµÉ ¶§ÀÇ ¹æ»ç¼± ºÒÅõ°ú¼º Á¤µµ¸¦ Æò°¡ÇØ¾ß ÇÒ Çʿ伺ÀÌ ´ëµÎµÇ°í ÀÖ´Ù. º» ½ÇÇè¿¡¼­´Â ´Ù¾çÇÑ ±Ù°üÀü»öÁ¦µéÀÇ ¹æ»ç¼± ºÒÅõ°ú¼ºÀ» Æò°¡ÇÏ°íÀÚ, ¹æ»ç¼± ³ëÃâÁ¶°Ç¿¡ µû¸¥ aluminium step wedge¿¡ ´ëÇÑ ±¤ÇÐ ¹Ðµµ¸¦ ¾Ë¾Æº¸°í, ±× Áß ÀûÀýÇÑ ³ëÃâÁ¶°ÇÀ» ¼±ÅÃÇÏ¿© ¼öÁ¾ÀÇ ±Ù°ü Àü»öÀçÀÇ ¹æ»ç¼± ºÒÅõ°ú¼º Á¤µµ¸¦ ¾Ë·ç¹Ì´½ µÎ²²·Î ȯ»êÇÏ¿© ºñ±³ÇØ º¸°íÀÚ ÇÑ´Ù. ¹æ»ç¼± ºÒÅõ°ú¼ºÀÇ ±âÁØÀ» À§ÇØ 11°³ÀÇ stepÀ¸·Î ±¸¼ºµÈ aluminum step wedgeÀ» »ç¿ëÇÏ¿©, 60kVp, 70kVp °üÀü¾Ð »óÅ¿¡¼­ °¢°¢ 0.2, 0.3, 0.4ÃÊ ±×¸®°í 0.2, 0.3, 0.33ÃÊÀÇ ³ëÃâ½Ã°£À¸·Î ±³ÇÕÇʸ§»ó¿¡¼­ ¹æ»ç¼± ÃÔ¿µÈÄ ÀûÀýÇÑ ³ëÃâ Á¶°ÇÀ» ±¸ÇÏ¿´´Ù. Á÷°æ 5 mm, °¢°¢ÀÇ µÎ²² 0.5, 1.0, 1.5, 2.0, 2.5, 3.0 mmÀÎ 10Á¾ (Tubli-, Kerr pulp Canal , , , AH plus jet starter , Ad , Nogenol root canal , ZOB , )ÀÇ ±Ù°üÀü»öÀç ½ÃÆíÀ» °¢ Àç·á¿Í µÎ²²´ç 10°³¾¿ Á¦ÀÛÇÑ ÈÄ, µ¿ÀÏÇÑ µÎ²²ÀÇ »ó¾ÆÁú ½ÃÆí, aluminum step wedge¿Í ÇÔ²² Á¤ÇØÁø ³ëÃâ½Ã°£¿¡ µû¶ó ¹æ»ç¼± ÃÔ¿µÀ» ÇÏ¿´´Ù. ¸ðµç Çʸ§Àº ÀÚµ¿Çö»ó±â·Î Çö»óÇÏ¿´´Ù. ½ÃÆíÀÇ ¹æ»ç¼± ÈæÈ­µµ¸¦ densitometer·Î 5ȸ ¹Ýº¹ ÃøÁ¤ ÈÄ, Æò±Õ°ªÀ» ±¸ÇÏ¿© ¾Ë·ç¹Ì´½ µÎ²²·Î ȯ»êÇÏ¿´´Ù. ¾ò¾îÁø Á¤º¸¸¦ ºÐ¼®ÇÏ¿© ´ÙÀ½ÀÇ °á°ú¸¦ ¾ò¾ú´Ù. 1. °üÀü¾Ð 60 kVp¿¡¼­ ³ëÃâ½Ã°£ 0.2, 0.3, 0.4ÃÊ, 70 kVp¿¡¼­ 0.2, 0.3, 0.33ÃÊ·Î º¯È­¸¦ ÁÖ¾î ¹æ»ç¼± ÃÔ¿µÀ» ÇÏ¿´À» ¶§, ÈæÈ­µµ°¡ ISO No. 6876 ±Ô°Ý¿¡ °¡Àå ÀûÇÕÇÑ °ÍÀº 60 kVp, 0.2ÃÊ ÀÏ °æ¿ì¿´´Ù. 2. ÃøÁ¤µÈ ±Ù°ü Àü»öÁ¦ÀÇ ¹æ»ç¼± ºÒÅõ°ú¼ºÀº 2.29 mm Al (NOGENOL)·ÎºÎÅÍ 13.69 mm Al (AH Plus jet)±îÁö ´Ù¾çÇÏ°Ô ³ªÅ¸³µÀ¸³ª, ¸ðµÎ ANSI/ADA specification (2000) ¶Ç´Â ISO No. 6876 (2001) ±Ô°ÝÀÌ Á¦½ÃÇÑ ÃÖ¼ÒÇÑ 3 mm AlÀÌ»óÀÇ ¹æ»ç¼± ºÒÅõ°ú¼ºÀ» Áö³à¾ß ÇÑ´Ù´Â ±âÁØ¿¡ ÀûÇÕÇÏ¿´´Ù. 3. Àç·áÀÇ µÎ²²°¡ Áõ°¡ÇÒ¼ö·Ï ¹æ»ç¼± ºÒÅõ°ú¼ºÀº Áõ°¡ÇÏÁö¸¸, Á¤ºñ·ÊÇÏÁö´Â ¾Ê¾Ò´Ù. 4. °¢ ½ÇÇèÀç·áÀÇ 1 mm µÎ²²ÀÇ ½ÃÆí¿¡ ´ëÇÑ mm Al°ªµéÀº Åë°èÀûÀ¸·Î À¯ÀÇÇÑ Â÷ÀÌ°¡ ÀÖ¾ú´Ù. ÀÌ»óÀÇ °á°ú´Â º» ½ÇÇè¿¡ »ç¿ëµÈ ¼öÁ¾ÀÇ ±Ù°ü Àü»öÀç´Â ¸ðµç ±Ô°Ý¿¡ ÀûÇÕÇÑ ¹æ»ç¼± ºÒÅõ°ú¼ºÀ» °¡Áö°í ÀÖÀ½À» ½Ã»çÇÑ´Ù.

This study was performed to assess the radiopacity of a variety of root canal sealers according to the specification concerning root canal sealers. Ten materials including Tubli-. Kerr Pulp Canal , AH , AH , AH plus , Ad sea . , , ZOB , and dentin were evaluated in this study. In the first part, densitometric reading of an each step of aluminum step wedge on occlusal film was performed at different voltage and exposure time. In the second part, ten specimens were radiographed simultaneously with an aluminum step wedges on the occlusal films under decided condition. The mean radiographic density values of the materials were transformed into radiopacity expressed equivalent thickness of aluminum (mm Al). The following results were obtained. 1. Among the various conditions, the appropriate voltage and exposure time that meet the requirement density was 60 kVp at 0.2 s 2. All of the materials had greater radiopacity than 3 mm Al requirement of ANSI/ADA specification No. 57 (2000) and ISO No. 6876 (2001) standards. 3. The radiopacity of materials increased as thickness of materials increased. 4. The mm Al value of each specimen at 1mm in thickness has a significant difference in the statistics. It suggests that root canal sealers have a sufficient radiopacity that meet the requirement.

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Radiopacity;Aluminum step wedge;Root canal sealer;Optic density;Equivalent thickness Aluminum

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