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THE COMPARISON OF POLYMERIZATION OF COMPOSITE RESIN INFLUENCED BY CURING DEPTH AND SHADE

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Abstract

Ä¡°ú¿ë ¼öº¹Àç·á°¡ ¿ä±¸ÇÏ´Â ½É¹Ì¼º°ú Ä¡¾ÆÀÇ º¸Á¸ ¹× ÆíÀǼº µîÀÇ ¿©·¯ Á¶°ÇµéÀ» ¸¸Á·½ÃÅ°±â À§Çؼ­ Ä¡°ú¿ë º¹ÇÕ·¹ÁøÀº ÀûÀýÇÑ ÁßÇÕÀÌ ÀÌ·ç¾îÁ® ¹°¸®Àû ±â°èÀû ¼ºÁúÀ» ÃæÁ·ÇÏ°í, »öÁ¶ÀÇ ¾ÈÀü¼º, ÁßÇÕ½ÃÀÇ ¼öÃà°ú ÀÌ¿¡ µû¸¥ º¯¿¬ ÀûÇÕµµ ¹®Á¦¸¦ ÇØ°áÇÒ ¼ö ÀÖ¾î¾ß ÇÑ´Ù.
º» ¿¬±¸¿¡¼­´Â ±¤ÁßÇÕ º¹ÇÕ·¹Áø Z250ÀÇ »ö»ó°ú µÎ²²¸¦ ´Þ¸® ÇÏ¿© ±¤Åõ°úµµ¿Í ÁßÇÕµµ¸¦ °¢°¢ Àû¿Ü¼± ºÐ±¤ºÐ¼®¹ý°ú ¹Ì¼¼°æµµ ÃøÁ¤À» ÅëÇØ ºñ±³ÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. ÇöóÁ ¾ÆÅ© ÁßÇÕ±âÀÇ »ç¿ë ½Ã 3ÃÊ ÁßÇÕ°ú 6ÃÊ ÁßÇÕÀÇ °æ¿ì·Î ³ª´©¾î ½ÇÇèÇÏ¿´À¸¸ç 6ÃÊ ÁßÇÕ¿¡ À־ ÇÒ·Î°Õ ÁßÇÕ 20ÃÊ¿Í À¯»çÇÑ ±¤Åõ°úµµ ¹× ¹Ì¼¼°æµµ¸¦ ³ªÅ¸³»¾ú´Ù.
2. ±¤ÁßÇÕ º¹ÇÕ·¹ÁøÀÇ »ö»óÀ» Al, A2, A3, A3.5·Î ³ª´©¾î ½ÇÇèÇÑ °á°ú ·¹ÁøÀÇ Ç¥¸é¿¡¼­´Â »ö»óº°·Î ±¤Åõ°úµµ³ª °æµµÀÇ Â÷ÀÌ°¡ ³ªÅ¸³ªÁö ¾Ê¾ÒÀ¸³ª, 2, 3, 4mm·Î ±íÀÌ°¡ Áõ°¡ÇÔ¿¡ µû¶ó »ö»ó¿¡ µû¸¥ ±¤Åõ°úµµ³ª °æµµÀÇ Â÷ÀÌ°¡ È®¿¬ÇÏ°Ô ³ªÅ¸³µ°í ƯÈ÷ »ö»óÀÌ ¾îµÎ¿öÁú¼ö·Ï 4mmÀÇ ±íÀÌ¿¡¼­ ÁßÇÕµµ°¡ ´õ¿í ³·¾Ò´Ù.
3. ÁßÇÕ±íÀÌÀÇ ºñ±³¸¦ À§ÇÏ¿© 0, 2, 3, 4mm ±íÀÌ·Î ³ª´©¾î ½ÇÇèÇÑ °á°ú, 2mmÀÌ»óÀÇ ±íÀÌ¿¡ À־´Â ¹Ì¹ÝÀÀ ´Ü·®Ã¼ÀÇ ¾çÀÌ À¯ÀÇÇÏ°Ô ¸¹Àº °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
4. ±¤ÁßÇÕ º¹ÇÕ·¹ÁøÀÇ ±¤Åõ°úµµ¸¦ ¾Ë¾Æº¸´Â FTIRÀ» ÅëÇÑ ´Ü·®Ã¼ Àüȯµµ¿Í ¹Ì¼¼°æµµ ÃøÁ¤»çÀÌ¿¡´Â À¯ÀÇÇÑ »ó°ü°ü°è¸¦ º¸¿´´Ù.
Adequate polymerization is a crucial factor in obtaining optimal physical properties and clinical performance of resin composite restorative materials.
The purpose of this study was to determine the effectiveness of shade and depth on dental composite resin polymerized with plasma arc curing unit employing FTIR and microhardness.
From this experiment, the following results were obtained :
1. The light transmission and microhardness by mode 6 in plasma arc curing were similar to by 20 secs in halogen light curing.
2. The experimental groups of Al, A2, A3, A3.5 were not significant difference to light transmission and microhardness on surface and 2mm depth, but were significant difference on 3mm and 4mm depth. Especially light transmission and microhardness were small in darker shade and deeper thickness
3. Compared with depth cure, uncured monomer amount increased at more than 2mm depth.
4. The light transmission by FTIR and polymerization by microhardness were significant corelation.

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Åõ°ú °è¼ö;ÁßÇÕµµ;¹Ì¼¼°æµµ;Fourier º¯È¯ Àû¿Ü¼± ºÐ±¤ºÐ¼®;Transmission coefficient;Degree of conversion;Microhardness;FTIR

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