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Color evaluation of low viscosity bulk-fill resin with composite resin capping layer

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À±Á¾Çö:Yun Jong-Hyeon Á¤ÁöÇý:Jung Ji-Hye/ÀåÈÆ»ó:Chang Hoon-Sang

Abstract

¸ñÀû: ÀúÁ¡µµ ¹úÅ©ÇÊ·¹Áø°ú º¹ÇÕ·¹ÁøÀ» ÀûÃþÇÑ ¼öº¹¹°ÀÇ »öÁ¶¸¦ Æò°¡Çϱâ À§ÇÔÀÌ´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: ÀúÁ¡µµ ¹úÅ©ÇÊ·¹Áø(SDR)°ú A2, A3 »öÁ¶ÀÇ ¹Ì¼¼È¥ÇÕÇü º¹ÇÕ·¹Áø(A2, A3)À» 4 mm µÎ²²·Î Á¦ÀÛÇÏ¿© ±¤ÁßÇÕÇÑ ÈÄ »öÂ÷°è¸¦ ÀÌ¿ëÇÏ¿© ·¹Áø ½ÃÆíÀÇ CIE L*a*b* °ªÀ» ÃøÁ¤ÇÏ¿´´Ù. ÀÌÈÄ ÀúÁ¡µµ ¹úÅ©ÇÊ·¹Áø »ó¹æ¿¡ 2 mm µÎ²²·Î A2, A3 »öÁ¶ÀÇ ¹Ì¼¼È¥ÇÕÇü º¹ÇÕ·¹ÁøÀ» ÀûÃþÇÏ¿©(SA2, SA3) ±¤ÁßÇÕÇÑ ÈÄ »öÃøÁ¤À» ÇÏ°í(n = 10), ÀúÁ¡µµ ¹úÅ©ÇÊ·¹Áø°ú ¹Ì¼¼È¥ÇÕÇü º¹ÇÕ·¹Áø, ±×¸®°í À̵éÀ» ÀûÃþÇÑ ½ÃÆíÀÇ »öÂ÷(¥ÄE)¸¦ °è»êÇÏ¿´´Ù.

°á°ú: L* °ªÀº SDRÀÌ °¡Àå ÄÇ°í SA2, SA3 ±×¸®°í A2, A3 ¼øÀ¸·Î °¨¼ÒÇß´Ù. a* °ªÀº SDRÀÌ °¡Àå ÀÛ¾Ò°í SA2, SA3 ±×¸®°í A2, A3 ¼øÀ¸·Î Áõ°¡Çß´Ù. b* °ªÀº SDRÀÌ °¡Àå ÀÛ¾ÒÀ¸¸ç A2, SA2 ±×¸®°í A3, SA3 ¼øÀ¸·Î Áõ°¡Çß´Ù. ÀûÃþÇÑ ½ÃÆí°ú ¹Ì¼¼º¹ÇÕÇü º¹ÇÕ·¹Áø ½ÃÆíÀÇ ¥ÄE °ªÀº A2¿Í SA2 »çÀÌ¿¡ ¥ÄE = 3.4, A3¿Í SA3 »çÀÌ¿¡ ¥ÄE = 3.1·Î °è»êµÇ¾ú´Ù.

°á·Ð: ÀúÁ¡µµ ¹úÅ©ÇÊ·¹Áø°ú ¹Ì¼¼È¥ÇÕÇü º¹ÇÕ·¹ÁøÀ» ÀûÃþÇÑ ½ÃÆí°ú ¹Ì¼¼È¥ÇÕÇü º¹ÇÕ·¹Áø¸¸À¸·Î Á¦ÀÛÇÑ ½ÃÆíÀÇ »öÁ¶ÀÇ Â÷ÀÌ´Â ÀϹÝÀûÀ¸·Î ÀÎÁöÇÏÁö ¸øÇÒ Á¤µµ·Î ÀÛ¾Ò´Ù.

Purpose: The purpose of this study was to measure the color of low viscosity bulk-fill resin with a capping layer and to compare it with the color of microhybrid composite resin.

Materials and Methods: A low viscosity bulk-fill resin (SDR) and microhybrid composite resin of shade A2 (A2) or A3 (A3) were fabricated to 4 mm thickness and light cured for 20 seconds. CIE L*a*b* values of the resin specimens were measured with a colorimeter. Then shade A2 and A3 microhybrid composite resin was capped over low viscosity bulk-fill resins in 2 mm thickness (SA2, SA3). The resin specimens were light cured for 20 seconds and the color was measured and analyzed (n = 10). Color differences (¥ÄE) between SA2 and A2, SA3 and A3 were also calculated.

Results: L* value was highest in SDR followed by SA2 and SA3. L* value of A2 and A3 was the lowest. a* value was lowest in SDR followed by SA2 and SA3, and A2 and A3 was the highest. b* value was lowest in SDR followed by A2 and SA2, and A3 and SA3 was the highest. ¥ÄE between A2 and SA2 (¥ÄE = 3.4), and that between A3 and SA3 (¥ÄE = 3.1) was lower than the perceptible color difference threshold of ¥ÄE = 3.7.

Conclusion: ¥ÄE between low viscosity bulk-fill resin with a capping layer and microhybrid resin was lower than the perceptible color difference threshold.

Å°¿öµå

ÀúÁ¡µµ ¹úÅ©ÇÊ·¹Áø; »öÁ¶; »öÂ÷°è
low viscosity bulk-fill resin; color; colorimeter

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