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COLOR STABILITY OF NEW SILORANE-BASED COMPOSITE RESIN: AN IN VITRO SPECTROPHOTOMETRIC STUDY

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Abstract

º» ¿¬±¸ÀÇ ¸ñÀûÀº silorane-based º¹ÇÕ·¹ÁøÀÇ »ö¾ÈÁ¤¼ºÀ» ±âÁ¸ÀÇ methacrylate-based º¹ÇÕ·¹Áø°ú ºñ±³ÇÏ¿© Æò°¡ÇÏ´Â °ÍÀÌ´Ù. Silorane-based º¹ÇÕ·¹ÁøÀÎ P90(3M ESPE, USA), methacrylate-based º¹ÇÕ·¹ÁøÀÎ Tetric Ceram(Ivoclar Vivadent, Liechtenstein), Z250, Z350(3M ESPE, USA)À» ÀÌ¿ëÇÏ¿© ½ÃÆíÀ» Á¦ÀÛÇÏ°í, Áõ·ù¼ö, Ä¿ÇÇ, ·¹µå ¿ÍÀÎ, Ä«·¹ ¿ë¾×¿¡ ´ã°¡ 1ÀÏ, 3ÀÏ, 7ÀÏ, 14ÀÏ, 21ÀÏ, 28ÀÏ ÈÄ »ö º¯È­¸¦ ºÐ±¤±¤µµ°è·Î ÃøÁ¤ÇÏ°í ½ÇÇè ÀüÈÄÀÇ »ö»óÂ÷ÀÌ(¥ÄE*ab)°ªÀ» »êÃâÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù. 1. Ä«·¹ ¿ë¾× > ·¹µå ¿ÍÀÎ > Ä¿ÇÇ > Áõ·ù¼öÀÇ ¼øÀ¸·Î ·¹Áø ½ÃÆíÀÇ º¯»öÀÌ Å©°Ô ³ªÅ¸³µ´Ù. 2. ³× °¡Áö Á¾·ùÀÇ ·¹ÁøÀ» ºñ±³ÇÏ¿´À» ¶§, Z350 > Z250 > Tetric Ceram > P90ÀÇ ¼øÀ¸·Î º¯»öÀÌ Å©°Ô ³ªÅ¸³µ´Ù. 3. Ä«·¹ ¿ë¾×ÀÇ °æ¿ì ³× Á¾·ùÀÇ ·¹Áø ¸ðµÎ¿¡¼­ ħÁö 1ÀÏ ÀÌÈÄ ¼ö¿ëµµ ¿ªÄ¡ ÀÌ»ó(¥ÄE*ab>3.3)ÀÇ º¯»öÀÌ ³ªÅ¸³µ´Ù. 4. ·¹µå ¿ÍÀÎÀÇ °æ¿ì Z350, Z250, Tetric Ceram¿¡¼­ ħÁö 1ÀÏ ÀÌÈÄ, P90¿¡¼­´Â ħÁö 28ÀÏ ÀÌÈÄ¿¡ ¼ö¿ëµµ ¿ªÄ¡ ÀÌ»óÀÇ º¯»öÀÌ ³ªÅ¸³µ´Ù. 5. Ä¿ÇÇÀÇ °æ¿ì Z350¿¡¼­ ħÁö 1ÀÏ ÀÌÈÄ, Z250¿¡¼­ ħÁö 3ÀÏ ÀÌÈÄ, Tetric Ceram¿¡¼­ ħÁö 7ÀÏ ÀÌÈÄ¿¡ ¼ö¿ëµµ ¿ªÄ¡ ÀÌ»óÀÇ º¯»öÀÌ ³ªÅ¸³µÀ¸³ª P90¿¡¼­´Â ħÁö 28ÀÏ ÀÌÈÄ¿¡µµ ¼ö¿ëµµ ¿ªÄ¡ ÀÌ»óÀÇ º¯»öÀÌ ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù.

The objective of this study was to evaluate the color stability of new silorane-based composite resin compared with methacrylate-based composite resins after immersion in 3 staining solutions. One silorane-based composite(Filtek P90) and 3 methacrylate -based composites(Filtek Z250, Filtek Z350, Tetric Ceram) were evaluated. Twenty disk-shaped specimens(10¡¿2mm) of each of 4 composite resins were prepared. The specimens were then divided into 4 groups of 5 specimens each and immersed in 3 staining solutions(coffee, red wine, curry solution) or distilled water(control) for 28-day test period. Color of the specimens was measured with a spectrophotometer(Color Eye 7000A) using CIE L*a*b* color space relative to CIE standard illuminant D65 at baseline, 1day, 3days, 7days, 14days, 21days and 28days after staining. The color differences(¥ÄE*ab) were calculated. The results were obtained as follows ; 1. The mean color changes(¥ÄE*ab) of the composites were greatest in curry solution, then red wine, coffee and distilled water, in decreasing order. 2. The mean color changes(¥ÄE*ab) of the composites were greatest in Z350, Z250, Tetric Ceram and P90, in decreasing order.

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Silorane;Composite resin;Discoloration;Spectrophotometer

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