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Evaluation of the radiopacity and cytotoxicity of resinous root canal sealers

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±èâ±Ô, ·ùÇö¿í, ÀåÈÆ»ó, À̺´µµ, ¹Î°æ»ê, È«ÂùÀÇ,
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±èâ±Ô ( Kim Chang-Gyu ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
·ùÇö¿í ( Ryu Hyun-Wook ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
ÀåÈÆ»ó ( Chang Hoon-Sang ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
À̺´µµ ( Lee Byung-Do ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­¾Ç¾È¸é¹æ»ç¼±Çб³½Ç
¹Î°æ»ê ( Min Kyung-San ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
È«ÂùÀÇ ( Hong Chan-Ui ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ º¸Á¸Çб³½Ç

Abstract

º» ¿¬±¸ÀÇ ¸ñÀûÀº ¼¼ °¡Áö ·¹Áø°è ±Ù°üÃæÀü½Ç·¯ (AH 26, EZ fill, AD Seal), »êÈ­¾Æ¿¬ À¯Áö³î°è ±Ù°üÃæÀü½Ç·¯(ZOB Seal) ±×¸®°í ¼ö»êÈ­Ä®½·°è ±Ù°üÃæÀü½Ç·¯ (Sealapex)ÀÇ ¹æ»ç¼± ºÒÅõ°ú¼º ¹× ¼¼Æ÷µ¶¼ºÀ» Æò°¡ÇÑ °ÍÀÌ´Ù. °¢ ½Ç·¯¸¦ Á¦Á¶È¸»çÀÇ Áö½Ã´ë·Î È¥ÇÕÇÏ¿© Á÷°æ 10 mm, µÎ²² 1 mm·Î ½ÃÆíÀ» Á¦ÀÛÇÑ ÈÄ ISO 6876/2001ÀÇ ±Ô°Ý¿¡ µû¶ó ±³ÇÕÇʸ§À» ÀÌ¿ëÇÏ¿© ¾Ë·ç¹Ì´½ ½ºÅÜ¿þÁö¿Í ÇÔ²² ¹æ»ç¼± ÃÔ¿µÀ» ½ÃÇàÇÏ¿´´Ù. ¹æ»ç¼± »çÁøÀ» µðÁöÅÐÈ­ÇÏ¿© ÄÄÇ»ÅÍ¿¡ ÀúÀåÇÑ ÈÄ Scion image ÇÁ·Î±×·¥À» ÀÌ¿ëÇÏ¿© °¢ ´Ü°èÀÇ ¾Ë·ç¹Ì´½ ½ºÅÜ¿þÁöÀÇ µÎ²²¿Í ºñ±³ÇÏ¿´´Ù. °¢ Àç·áÀÇ ¼¼Æ÷ µ¶¼ºÀº ºÒ¸êÈ­µÈ Àΰ£ Ä¡ÁÖÀδ뼼Æ÷ (immortalized human periodontal ligament cell, IPDL)¿¡¼­ MTT ºÐ¼®¹ýÀ» ÀÌ¿ëÇÏ¿© ½ÃÇàÇÏ¿´´Ù. EZ fillÀÌ °¡Àå ³ôÀº ¹æ»ç¼± ºÒÅõ°ú¼ºÀ» ³ªÅ¸³»¾ú°í Sealapex°¡ °¡Àå ³·Àº ¹æ»ç¼± ºÒÅõ°ú¼ºÀ» ³ªÅ¸³»¾ú´Ù (p < 0.05). AH 26, AD Seal, ZOB SealÀº ÁߵÀÇ ¹æ»ç¼± ºÒÅõ°ú¼ºÀ» ³ªÅ¸³»¾ú´Ù. Sealapex¸¦ Á¦¿ÜÇÑ ¸ðµç Æò°¡µÈ Àç·á´Â ISO ±Ô°Ý¿¡ ºÎÇÕÇÏ´Â ¹æ»ç¼± ºÒÅõ°ú¼ºÀ» º¸¿´´Ù. ·¹Áø°è ½Ç·¯ÀÇ ¼¼Æ÷µ¶¼ºÀº ¸ðµç ½ÇÇè ½Ã°£´ë¿¡ °ÉÃÄ ´Ù¸¥ °èÅëÀÇ ½Ç·¯¿¡ ºñÇØ ³·°Ô ³ªÅ¸³µ´Ù (p < 0.05) ¾Æ¿ï·¯, EZ fillÀº 24¹× 48½Ã°£´ë¿¡¼­´Â AD Seal¿¡ ºñÇØ, 72 ½Ã°£´ë¿¡¼­´Â ´Ù¸¥ µÎ ·¹Áø°è ½Ç·¯¿¡ ºñÇØ ³ôÀº ¼¼Æ÷µ¶¼ºÀ» º¸¿´´Ù. ±×·¯³ª ·¹Áø°è ½Ç·¯¿¡¼­ ¹æ»ç¼± ºÒÅõ°ú¼ºÀÇ Á¤µµ¿Í ¼¼Æ÷µ¶¼º°úÀÇ °ü·Ã¼ºÀº ¾ø¾ú´Ù (p > 0.05). ÀÌ ½ÇÇè °á°ú·Î º¼ ¶§ ·¹Áø°è ½Ç·¯´Â ´Ù¸¥ °èÅëÀÇ ½Ç·¯¿¡ ºñÇØ ¹æ»ç¼± ºÒÅõ°ú¼º ¸é¿¡¼­ ÀåÁ¡À» °¡Áö¸ç »ýüÀûÇÕ¼º¸é¿¡¼­ ¿ì¼öÇÏ´Ù°í »ç·áµÈ´Ù.

The aim of this study was to evaluate the radiopacity and cytotoxicity of three resin-based (AH 26, EZ fill and AD Seal), a zinc oxide-eugenol-based (ZOB Seal), and a calcium hydroxide-based (Sealapex) root canal sealers. Specimens, 10 mm in diameter and 1 mm in thickness, were radiographed simultaneously with an aluminum step wedge using occlusal films, according to ISO 6876/2001 standards. Radiographs were digitized, and the radiopacity of sealers was compared to the different thicknesses of the aluminum step wedge, using the Scion image software. Using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, the cytotoxicity of each material was determined in immortalized human periodontal ligament (IPDL) cells. The results demonstrated that EZ fill was the most radiopaque sealer, while Sealapex was the least radiopaque (p < 0.05). AH 26, AD Seal and ZOB Seal presented intermediate radiopacity values. All the materials evaluated, except for Sealapex, presented the minimum radiopacity required by ISO standards. The cell viabilities of resin-based root canal sealers were statistically higher than that of other type of root canal sealers through the all experimental time. Further, EZ fill showed statistically lower cell viability in 24 and 48 hours compared to AD Seal and in 72 hours compared to all other resin-based root canal sealers. However, there was no correlation between the radiopacity and cytotoxicity of three resin-based root canals sealers (p > 0.05). These results indicate that resin-based root canal sealer is more biocompatible and has advantage in terms of radiopacity.

Å°¿öµå

¹æ»ç¼± ºÒÅõ°ú¼º;¼¼Æ÷µ¶¼º;±Ù°üÃæÀü½Ç·¯;MTT ºÐ¼®¹ý;¾Ë·ç¹Ì´½ ½ºÅÜ¿þÁö;ºÒ¸êÈ­µÈ Àΰ£ Ä¡ÁÖÀÎ´ë ¼¼Æ÷
Radiopacity;Cytotoxicity;Root canal sealer;MTT assay;Aluminum step wedge;Immortalized human periodontal ligament cell

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