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Effect of Opaque Thermocycling on The Color Stability of Veneered Resin

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Abstract

°á·Ð
º» ¿¬±¸¿¡¼­´Â ·¹ÁøÀ» ÀüÀå Àç·á·Î »ç¿ëÇÏ°í ÁØ±Í±Ý¼Ó ÇÕ±ÝÀ¸·Î Á¦ÀÛÇÑ ±Ý¼Ó°üÀÇ »öÁ¶¸¦
Â÷´ÜÇϱâ À§ÇØ »ç¿ëÇÏ´Â opaqueÀÇ µÎ²²¸¦ 0.1 §®, 0.25 §® ¹× 0.5 §®·Î ½ÃÆíÀ» Á¦ÀÛÇÏ¿© 3°³
ÀÇ ½ÇÇ豺À¸·Î ³ª´©¾ú´Ù. CIE L*a*b* systemÀ¸
·Î »öÁ¶¸¦ Æò°¡ÇÏ´Â Ãø»ö »öÂ÷°è¸¦ ÀÌ¿ëÇÏ¿© »öäÁö¼ö¸¦ ÃøÁ¤ÇÏ¿´´Ù. thermocycling Àü°ú
0¡É¿Í 55¡ÉÀÇ ¼öÁ¶¿¡¼­ 1500ȸÀÇ thermocyclingÀ» ½ÃÇàÇÑ ÈÄÀÇ »öäÁö¼ö L*
°ª, a*°ª, b*°ªÀ» ºñ±³ÇÔÀ¸·Î½á ÀüÀå¿ë ·¹ÁøÀÇ »ö¾ÈÁ¤¼ºÀ» ÃøÁ¤
ÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. Thermocycling ÈÄÀÇ »ö¾ÈÁ¤¼ºÀº opaqueÃþÀÌ 0.1 §®ÀÎ ±º¿¡¼­ °¡Àå ¿ì¼öÇÏ¿´´Ù.
2. Thermocycling ÈÄ opaque µÎ²²°¡ 0.25 §® ÀÌ»óÀ϶§ ¡âE*ab´Â 3.3 ÀÌ»ó
À¸·Î °¨ÁöÇÒ Á¤µµÀÇ Â÷ÀÌ°¡ ÀÖ¾ú´Ù.
3. Thermocycling ÈÄ opaque µÎ²²°¡ 0.25 §® ÀÌ»óÀ϶§ L*°ªÀÇ °¨¼Ò¿Í
a*°ªÀÇ Áõ°¡°¡ °üÂûµÇ¾ú´Ù.
#ÃÊ·Ï#
In this study, metal specimens were made of semiprecious metal alloy and veneered
with composite resin (Dentacolar, Kulzer). Germany, Color stability of each specimen
was evaluated by the CIE L*a*b* system.
Specimens were divided into 3 groups as follows ;
Group 1; Resin with 0.1 §® opaque layer
Group 2: Resin with 0.25 §® opaque layer
Group 3: Resin with 0.5 §® opaque layer
The purpose of this study was to evaluate the color difference and color stability of
specimens, following to the opaque thickness.
The results obtained were as follows ;
1. The group 1 had best color stability after thermocycling.
2. After thermocycling, the specimens with more than 0.25 §® opaque thickness
showed detectable color change and ¡âE*ab values were more than 3.3
level.
3. After thermocycling, L* value was decreased and a*
value was increased in group 2 and 3.

Å°¿öµå

color stability; resin veneer; thermocycle;

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