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Microleakage of Endodontic Temporary Restorative Materials under Dynamic Loading

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Á¤µ¿È£ ( Jung Dong-Ho ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
³ë¿µ½Å ( Noh Young-Shin ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
ÀÌÇصΠ( Lee Hae-Doo ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
ÀåÈÆ»ó ( Chang Hoon-Sang ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
·ùÇö¿í ( Ryu Hyun-Wook ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
¹Î°æ»ê ( Min Kyung-San ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç

Abstract

º» ¿¬±¸ÀÇ ¸ñÀûÀº µ¿ÀûÇÏÁß ÇÏ¿¡¼­ ³× Á¾·ùÀÇ ±Ù°üÄ¡·á¿ë ÀÓ½ÃÃæÀüÀçÀÇ ¹ÐÆóÈ¿°ú¸¦ ºñ±³ÇÏ´Â °ÍÀÌ´Ù. 44°³ÀÇ °ÇÀüÇÑ Àΰ£ ´ë±¸Ä¡¿¡ Ç¥ÁØÈ­µÈ ±Ù°ü¿Íµ¿À» Çü¼ºÇÑ ÈÄ Caviton, MD-Temp, IRM ¹× ZOE¸¦ ÀÌ¿ëÇÏ¿© ÃæÀüÇÏ¿´´Ù. ÀÌ ÈÄ, 1% ¸ÞÆ¿·»ºí·ç ¿ë¾×¿¡ ´ã±Ù »óÅ¿¡¼­ ¹Ýº¹ÇÏÁ߱⸦ ÀÌ¿ëÇÏ¿© 1 HzÀÇ ¼Óµµ·Î 98 NÀÇ ÇÏÁßÀ» ±â´É±³µÎ¿¡ 1,000¹ø °¡ÇÑ ´ÙÀ½ ½ÃÆíÀ» ¾çºÐÇØ ¹Ì¼¼´©ÃâÀ» Æò°¡ÇÏ°í one-way ANOVA (p = 0.05)¿Í »çÈÄ °ËÁ¤À¸·Î Duncan¡¯s multiple range tests·Î Åë°èºÐ¼® ÇÏ¿´´Ù. Caviton ±º°ú MD-Temp±ºÀÌ IRM±º°ú ZOE±ºº¸´Ù Åë°èÀûÀ¸·Î ÀûÀº ¹Ì¼¼´©ÃâÀ» º¸¿´À¸¸ç (p < 0.05), º» ½ÇÇè°á°ú·Î º¼ ¶§ Caviton°ú MD-Temp°¡ IRM°ú ZOEº¸´Ù µ¿ÀûÇÏÁß ÇÏ¿¡¼­ ±Ù°ü¿Íµ¿ ¹ÐÆóÈ¿°ú°¡ ¿ì¼öÇÏ´Ù°í »ç·áµÈ´Ù.

The purpose of this study was to compare the sealing abilities of four endodontic temporary restorative materials using a methylene blue dye penetration test under dynamic loading. Standardized access cavities were prepared in forty-four intact human permanent molar teeth, and the cavities were restored with Caviton, MD-Temp, IRM, or ZOE. After thermocycling, an intermittent load of 98 N at 1 Hz was applied for 1,000 cycles to the long axis of the functional cusp of each of the teeth, which were immersed in a 1% methylene blue solution. The teeth were split in half, and the linear depth of dye penetration was evaluated according to the criteria. The results were analyzed using one-way ANOVA (p = 0.05) and Duncan¡¯s multiple range test. The results demonstrated that Caviton and MD-Temp showed significantly lower microleakage than IRM and ZOE. It was concluded that Caviton and MD-Temp exhibited better sealing ability than IRM and ZOE under dynamic loading.

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Microleakage;Temporary restorative material;Dynamic loading

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