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Effect of coloring agent on the color of zirconia

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Abstract

¸ñÀû:ÀÌ ¿¬±¸ÀÇ ¸ñÀûÀº coloring agentÀÇ Á¾·ù¿Í Àû¿ë Ƚ¼ö°¡ Áö¸£ÄڴϾÆÀÇ »öÁ¶¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¾Ë¾Æº¸´Â °ÍÀÌ´Ù.

Àç·á ¹× ¹æ¹ý:´ÜÀϱ¸Á¶ Áö¸£ÄڴϾÆ(15.7 mm ¡¿ 15.7 mm ¡¿2.0 mm)¸¦ ÁغñÇÏ¿© ¿Ï¼ºµÈ ½ÃÆíÀº 11°³ ½ÇÇ豺 ±×·ìÀ¸·Î coloring agentÀÇ Á¾·ù¿Í Àû¿ë Ƚ¼ö¿¡ µû¶ó a1-a5¿Í w1-w5·Î ³ª´©¾ú´Ù. »öÁ¶ÀÇ ÃøÁ¤Àº ºÐ±¤Ãø»ö±â¸¦ ÀÌ¿ëÇÏ¿© ÀÌ·ç¾îÁ³´Ù. Coloring agent¸¦ Àû¿ë½ÃÅ°Áö ¾ÊÀº ±×·ìÀ» ´ëÁ¶±ºÀ¸·Î ¼³Á¤ÇÏ¿´´Ù. °¢ ±×·ìÀÇ »öÂ÷ÀÇ Á¤µµ( E*ab)¿Í translucency parameter (TP)¸¦ ºÐ¼®ÇÏ¿´´Ù. ÃøÁ¤Ä¡´Â two-way ANOVA, multiple comparison Scheffe test, Pearson correlation¿Í linear regression analysis¸¦ ÀÌ¿ëÇÏ¿© ºÐ¼®ÇÏ¿´´Ù.

°á°ú:Coloring agentÀÇ Àû¿ëȽ¼ö°¡ Áõ°¡ÇÒ¼ö·Ï µÎ°¡Áö Á¾·ù ¸ðµÎ¿¡¼­ Áö¸£ÄڴϾÆÀÇ ¸íµµ´Â °¨¼ÒÇÏ°í Ȳ»ö°è¿­Àº Áõ°¡Çß´Ù. Coloring agent´Â Áö¸£ÄڴϾÆÀÇ Åõ¸íµµ¿¡´Â ¿µÇâÀ» ¹ÌÄ¡Áö ¾Ê¾Ò´Ù. °¢ ±×·ì °£ÀÇ »öÁ¶Â÷ÀÌ´Â 0.87 Eab¿¡¼­ 9.43 Eab ¿´´Ù.

°á·Ð:Coloring agentÀÇ Á¾·ù¿Í Àû¿ë Ƚ¼ö´Â Áö¸£ÄڴϾÆÀÇ »öÁ¶ Â÷ÀÌ¿¡ ¿µÇâÀ» ¹ÌÄ¡Áö ¾Ê¾Ò´Ù.

PURPOSE: The aim of this study was to evaluate the effect of two types of coloring agents and the number of application on the color of zirconia.

MATERIALS AND METHODS: Monolithic zirconia specimens (15.7 mm ¡¿ 15.7 mm ¡¿ 2.0 mm) (n = 33) was prepared and divided into 11 groups. Each experimental group was coded as a1-a5, w1-w5 according to the type of coloring agent and number of application. Specimens with no coloring agent applied were set as control group. The color difference of specimen was measured by using double-beam spectrophotometer, and calculated color difference ( E*ab), translucency parameter (TP). All data was analyzed with two-way ANOVA, multiple comparison Scheffe test, Pearson correlation and linear regression analysis.

RESULTS: As the number of application increased, values of CIE L* was decreased, but values of CIE b* was increased in both coloring agents. However, there was no significant difference on values of translucency parameter. The color difference range of each group was 0.87 E*ab to 9.43 E*ab.

CONCLUSION: In this study, type of coloring agent and the number of application did not affect the color difference of zirconia.

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Áö¸£ÄÚ´Ï¾Æ ; »öÁ¶ ; Åõ¸íµµ
Coloring agent ; Zirconia ; Color ; Translucency ; Computer Aided Design/Computer Aided Manufacturing (CAD/CAM)

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