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Comparison of flexural strength and hardness on denture base resin with silver?fiber filler

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±Ý¿µÈñ ( Geum Young-Hee ) - ºÎ»ê°¡Å縯´ëÇб³ º¸°Ç°úÇдëÇÐ Ä¡±â°øÇаú
±èºÎ¼· ( Kim Bu-Sob ) - ºÎ»ê°¡Å縯´ëÇб³ º¸°Ç°úÇдëÇÐ Ä¡±â°øÇаú

Abstract

º» ¿¬±¸ÀÇ ¸ñÀûÀº ÀÇÄ¡»ó ·¹ÁøÀÇ Ç×±Õ¼º Çâ»óÀ» À§ÇØ Ã·°¡ÇÑ Àº»ç ÇÊ·¯°¡ ±â°èÀû Ư¼º¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¾Ë¾Æº¸°íÀÚ ÇÑ´Ù. ¿­ÁßÇÕÇü ·¹Áø 2Á¾°ú ÀÚ°¡ÁßÇÕÇü ·¹Áø 1Á¾¿¡ Àº»ç ÇÊ·¯ÀÇ ÇÔ·®À» 5 wt.%, 10 wt.%·Î ´Ù¸£°Ô ÷°¡ÇÏ¿© ¸¸´ÉÀç·á½ÃÇè±â¸¦ ÀÌ¿ëÇÏ¿© ±¼°î°­µµ¸¦ ÃøÁ¤ÇÏ¿´°í ¸¶ÀÌÅ©·ÎºñÄ¿½º°æµµ°è¸¦ »ç¿ëÇÏ¿© °æµµ °ªÀ» ÃøÁ¤ÇÏ¿´À¸¸ç, Àü°è¹æ»çÇü ÁÖ»çÀüÀÚÇö¹Ì°æÀ¸·Î Ç¥¸é»óŸ¦ 5,000¹èÀ²·Î, ±¤ÇÐÇö¹Ì°æÀ¸·Î 100¹èÀ²·Î °üÂûÇÏ¿© ´ëÁ¶±º°ú ºñ±³ ºÐ¼®ÇÏ¿´´Ù. ¸ðµç µ¥ÀÌÅÍ´Â SPSS ver. 24.0 ÇÁ·Î±×·¥À¸·Î ÀÏ¿ø¹èÄ¡ºÐ»êºÐ¼®À» ½Ç½ÃÇÏ¿´À¸¸ç, »çÈÄ°ËÁ¤À¸·Î Scheffe test¸¦ ½ÃÇàÇÏ¿´´Ù. ±¼°î°­µµ´Â Àº»çÀÇ ÇÔÀ¯·®ÀÌ Áõ°¡ ÇÒ¼ö·Ï ³ô¾ÆÁ³À¸¸ç, ¿­ÁßÇÕÇü ·¹ÁøÀÌ ÀÚ°¡ÁßÇÕÇü ·¹Áøº¸´Ù À¯ÀǼº ÀÖ°Ô ³ô¾Ò´Ù. °æµµ´Â Àº»çÀÇ ÇÔÀ¯·®ÀÌ Áõ°¡ÇÒ¼ö·Ï ³ô¾ÆÁ³À¸¸ç, ¿­ÁßÇÕÇü ·¹Áø°ú ÀÚ°¡ÁßÇÕÇü ·¹Áø »çÀÌ¿¡´Â À¯ÀǼº ÀÖ´Â Â÷ÀÌ´Â ¾ø¾ú´Ù. ÀÇÄ¡»ó ·¹ÁøÀÇ Ç¥¸éÀ» °üÂûÇÑ °á°ú ƯÀÌÇÑ Â÷ÀÌ´Â ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù. ÀÓ»óÀû¿ëÀ» À§Çؼ­´Â 10 wt.%ÀÇ Àº»ç ÇÊ·¯¸¦ ÷°¡ÇÏ´Â °ÍÀ» ÃßõÇÏ´Â ¹ÙÀÌ´Ù.

In this study, we are to compare the effect of added silver-fiber filler on the mechanical properties of antimicrobial denture base resin. The silver-fiber filler were added to two heat-cured resin and one self-cured resin as 5 wt.% and 10 wt.%, respectively. The flexural strength was measured using a universal testing machine and the hardness value was measured using a micro Vickers hardness tester. The surface morphology was observed at a magnification of 5,000 by field emission scanning electron microscope and microscope(¡¿100). All data are in SPSS ver. 24.0 program was used to one-way ANOVA, folloewd by Scheffe test. Flexural strength increased with increasing silver-fiber, and heat-cured resin was significantly higher than self-cured resin. Hardness increased with increasing silver-fiber, and there was no significant difference between heat-cured resin and self-cured resin. Observation of surface morphology on the denture base resin showed no specific difference. For clinical application, we recommend adding 10 wt.% of a silver-fiber filler.

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Denture base resin; Flexural strength; Hardness; Silver-fiber filler

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