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COLOR STABILITY OF BONDING RESINS UNDER ACCELERATED AGING

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Choi Byung-C., John M. Powers,
¼Ò¼Ó »ó¼¼Á¤º¸
 ( Choi Byung-C. ) - Catholic University Medical College Department of Dentistry
 ( John M. Powers ) - University of Texas HHSC Biomaterials Research Center

Abstract

Á¢Âø¿ë ·¹ÁøÀº ¹ý¶ûÁúÀ̳ª »ó¾ÆÁú¿¡ ÃæÀüÀ縦 Á¢Âø½ÃÅ°±â À§ÇÏ¿© ÀÌ¿ëµÉ »Ó ¾Æ´Ï¶ó ·¹Áø ¼öº¹¹° ¼ö¼±À̳ª glaze½Ã¿¡µµ ÀÌ¿ëµÉ ¼ö ÀÖ´Ù. Á¢Âø¿ë ·¹ÁøÀÇ º¯»öÀº ·¹Áø ¼öº¹¹°ÀÇ º¯»ö¿¡ ¿µÇâÀ» ¹ÌÄ¥ ¼ö ÀÖ´Ù. ÀÌ ¿¬±¸¿¡¼­´Â °¡¼Ó½ÃÈ¿¿¡ µû¸¥ 12Á¾ÀÇ Á¢Âø¿ë ·¹Áø(PR, DT, AB, OB, BI, PB, ST, SB, HQ, GL, AL, ID)ÀÇ »ö¾ÈÁ¤µµ¸¦ Æò°¡ÇÏ¿´´Ù.
°¢°¢ 5°³ÀÇ ½ÃÆí(Á÷°æ 10 mm, µÎ²² 1mm)À» Á¦ÀÛÇÏ¿© Ci35 Weather-Ometer¸¦ ÀÌ¿ëÇÏ¿© 450 KJ/§³ÀÇ Àڿܼ± Á¶»ç·Î °¡¼Ó½ÃÈ¿ÇÏ¿´´Ù. ¹Ý»ç ºÐ±¤ºÐ¼®°è¸¦ ÀÌ¿ëÇÏ¿© ½ÃÆíÀÇ °¡¼Ó½ÃÈ¿ Àü°ú ÈÄÀÇ spectral reflectance¸¦ ÃøÁ¤ÇÏ¿´´Ù. ¹é»öÆÇÀ» ¹è°æÀ¸·Î 0.01mm, 0.1mm, 1mm ½ÃÆíÀÇ spectral reflectance¸¦ kubelka ¹æÁ¤½ÄÀ» ÀÌ¿ëÇÏ¿© °è»êÇÏ°í, Ç¥Áر¤¿ø A ¿¡ ´ëÇÑ CIE L^(*)a^(*)b^(*) °ªÀ» ±¸ÇÏ¿© °¡¼Ó½ÃÈ¿¿¡ µû¸¥ º¯»öµµ (¡âE^(*))¸¦ ±¸ÇÏ¿´´Ù.
°¡¼Ó½ÃÇ¥ ÈÄ 0.01mm ½ÃÆí¿¡¼­ º¯»öÀº °ÅÀÇ ³ªÅ¸³ªÁö ¾Ê¾Ò°í, 0.1mm ½ÃÆíÀÇ ¡âE^(*)´Â 0.07ºÎÅÍ 4.86À̾úÀ¸¸ç, 1mm ½ÃÆíÀº OB, BI, PB¸¦ Á¦¿ÜÇÏ°í´Â ½ÉÇÏ°Ô º¯»öµÇ¾ú´Ù. ÀϹÝÀûÀ¸·Î Á¢Âø¿ë ·¹ÁøÀº °¡¼Ó½ÃÈ¿ ÈÄ ³ë¶þ°Ô º¯»öµÇ°í ¸íµµ´Â °¨¼ÒÇÏ¿´´Ù.

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