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ÀúÁ¡µµ ¹× °íÁ¡µµ Bulk-fill Giomer º¹ÇÕ·¹Áø°ú Bulk-fill º¹ÇÕ·¹ÁøÀÇ ÀüȯÀ²°ú ÁßÇÕ¼öÃà

Degree of Conversion and Polymerization Shrinkage of Low and High Viscosity Bulk-Fill Giomer-based and Resin-based composites

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ÀÌÁ¦½Ä ( Lee Jae-Sik ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±èÇöÁ¤ ( Kim Hyun-Jung ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±ÇÅ¿± ( Kwon Tae-Yub ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú»ýüÀç·áÇб³½Ç
³²¼øÇö ( Nam Soon-Hyeun ) - °æºÏ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

À̹ø ¿¬±¸¿¡¼­´Â ÀúÁ¡µµ ¹× °íÁ¡µµ bulk-fill giomer º¹ÇÕ·¹ÁøÀÇ ÀüȯÀ²°ú ÁßÇÕ¼öÃàÀ» ±âÁ¸ bulk-fill º¹ÇÕ·¹Áø ¹× ÀüÅëÀû º¹ÇÕ·¹Áø°úºñ±³ Æò°¡Çغ¸°íÀÚ ÇÏ¿´´Ù. Bulk-fill giomer º¹ÇÕ·¹Áø 2Á¾·ù(Beautifil Bulk Restorative(BBR), Beautifil Bulk Flowable(BBF)), bulk-fill º¹ÇÕ·¹Áø 2Á¾·ù(Tetric N-Ceram Bulk-fill(TBF), SureFil SDR flow(SDR)), ÀüÅëÀû º¹ÇÕ·¹Áø 2Á¾·ù(Tetric N-Ceram(TN), Tetric N-flow(TF))¸¦ »ç¿ëÇÏ¿´´Ù. ÁßÇÕµµ ÃøÁ¤Àº Fourier transform infrared spectroscopyÀ» »ç¿ëÇÏ¿´À¸¸ç, ÁßÇÕ¼öÃàÀº linometerÀ» ÀÌ¿ëÇÏ¿© ÃøÁ¤ÇÏ¿´´Ù. º¹ÇÕ·¹Áø ÇϸéÀÇ ÀüȯÀ² ÃøÁ¤ °á°ú 2 mm¿Í 4 mm ±íÀÌ ¸ðµÎ BBR¿¡¼­ °¡Àå ³·°Ô ³ª¿ÔÀ¸¸ç, SDR¿¡¼­ °¡Àå ³ô°Ô ³ª¿Ô´Ù. 4 mm ±íÀÌ¿¡¼­ °íÁ¡µµ ¹× ÀúÁ¡µµ bulk-fill giomer º¹ÇÕ·¹ÁøÀÇ ÀüȯÀ²Àº bulk-fill º¹ÇÕ·¹Áø¿¡ ºñÇØ À¯ÀÇÇÏ°Ô ³·Àº °ªÀ» º¸¿´´Ù(p < 0.05). ±íÀÌ¿¡µû¸¥ ÀüȯÀ² ºñ±³ ½Ã TBF, TN, TF´Â À¯ÀÇÂ÷¸¦ º¸¿´À¸¸ç(p < 0.05), BBR, BBF, SDR´Â À¯ÀÇÂ÷¸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù. ÁßÇÕ¼öÃàÀº TF > SDR > BBF > TBF > TN, BBR ¼ø¼­·Î °¨¼Ò ÇßÀ¸¸ç(p < 0.05), bulk-fill giomer º¹ÇÕ·¹ÁøÀº bulk-fill º¹ÇÕ·¹Áøº¸´Ù ³·Àº ÁßÇÕ¼öÃà·®À» º¸¿´´Ù(p < 0.05). À̹ø ¿¬±¸ °á°ú 4 mm ±íÀÌ¿¡¼­ bulk-fill giomer º¹ÇÕ·¹Áø ¹× TBF´Â ºÒÃæºÐÇÑ ÁßÇÕÀ» ³ªÅ¸³ÂÀ¸¸ç, 2 mm¿Í 4 mm ¸ðµÎ¿¡¼­ °íÁ¡µµ¹× ÀúÁ¡µµ bulk-fill giomer º¹ÇÕ·¹ÁøÀº bulk-fill º¹ÇÕ·¹Áø¿¡ ºñÇØ ³·Àº ÀüȯÀ²À» º¸¿´´Ù. ±×·¯¹Ç·Î bulk-fill giomer º¹ÇÕ·¹ÁøÀÇ ÀÓ»óÀûÀÎÀû¿ëÀ» À§Çؼ­´Â ÀÌ¿¡ ´ëÇÑ ÃæºÐÇÑ °íÂû ¹× ÁÖÀÇ°¡ ÇÊ¿äÇÒ °ÍÀ¸·Î »ý°¢µÈ´Ù.

The aim of this study was to compare the degree of conversion and polymerization shrinkage of low and high viscosity bulk-fill giomer-based and resin-based composites. Two bulk-fill giomer (Beautifil Bulk Restorative (BBR), Beautifil Bulk Flowable (BBF)), two bulk-fill (Tetric N-Ceram Bulk-fill (TBF), SureFil SDR flow (SDR)) and two conventional resin composites (Tetric N-Ceram (TN), Tetric N-flow (TF)) were selected for this study. The degree of conversion was measured by using Fourier transform infrared spectroscopy. Polymerization shrinkage was measured with the linometer. For all depth, BBR had the lowest degree of conversion and SDR had the highest. At 4 mm, the degree of conversion of low and high viscosity bulk-fill giomer resin composites was lower than that of bulk-fill resin composites (p < 0.05). At the depth between 2 mm and 4 mm, there were significant difference with TBF, TN and TF (p < 0.05), while no significant difference in the degree of conversion was measured for BBR, BBF and SDR. Polymerization shrinkage of six resin composites decreased in the following order: TF > SDR > BBF > TBF > TN and BBR (p < 0.05). Polymerization shrinkage of bulk-fill giomer resin composites was lower than that of bulk-fill resin composites (p < 0.05). From this study, it is found that the bulk-fill giomer resin composites and TBF were not sufficiently cured in 4 mm depth. The degree of conversion of low and high viscosity bulk-fill giomer resin composites was significantly lower than bulk-fill resin composites in both 2 mm and 4 mm depths. Therefore, such features of bulk-fill giomer resin composites should be carefully considered in clinical application.

Å°¿öµå

Bulk-fill giomer; Bulk-fill; Degree of conversion; Polymerization shrinkage

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